{"id":8681,"date":"2025-12-16T21:47:54","date_gmt":"2025-12-16T13:47:54","guid":{"rendered":"https:\/\/www.lxbchip.com\/?p=8681"},"modified":"2025-12-16T21:47:54","modified_gmt":"2025-12-16T13:47:54","slug":"selecting-the-right-amplifier","status":"publish","type":"post","link":"https:\/\/www.lxbchip.com\/vi\/selecting-the-right-amplifier\/","title":{"rendered":"L\u1ef1a ch\u1ecdn b\u1ed9 khu\u1ebfch \u0111\u1ea1i ph\u00f9 h\u1ee3p"},"content":{"rendered":"

D\u00f9 b\u1ea1n \u0111ang l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c giao di\u1ec7n c\u1ea3m bi\u1ebfn c\u00f4ng su\u1ea5t th\u1ea5p, thu th\u1eadp d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao hay thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c, vi\u1ec7c l\u1ef1a ch\u1ecdn b\u1ed9 khu\u1ebfch \u0111\u1ea1i ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn kh\u1ea3 n\u0103ng duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng.
\nV\u1edbi s\u1ef1 \u0111a d\u1ea1ng v\u1ec1 lo\u1ea1i v\u00e0 ki\u1ebfn tr\u00fac c\u1ee7a c\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i, vi\u1ec7c hi\u1ec3u c\u00e1ch l\u1ef1a ch\u1ecdn lo\u1ea1i ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng.<\/p>\n

Th\u00e1ch th\u1ee9c: C\u00e2n b\u1eb1ng gi\u1eefa t\u00ednh linh ho\u1ea1t v\u00e0 chi ph\u00ed v\u1edbi c\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i \u0111a n\u0103ng.<\/h4>\n

M\u1ed9t th\u00e1ch th\u1ee9c th\u01b0\u1eddng g\u1eb7p \u0111\u1ed1i v\u1edbi c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf l\u00e0 t\u00ecm ki\u1ebfm c\u00e1c th\u00e0nh ph\u1ea7n c\u00f3 \u0111\u1ee7 \u0111\u1ed9 linh ho\u1ea1t v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed cho nhi\u1ec1u t\u00e1c v\u1ee5 \u0111i\u1ec1u ki\u1ec7n t\u00edn hi\u1ec7u kh\u00e1c nhau, \u0111\u1eb7c bi\u1ec7t khi \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ef1c cao kh\u00f4ng ph\u1ea3i l\u00e0 y\u00eau c\u1ea7u ch\u00ednh. \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng x\u1ea3y ra trong c\u00e1c m\u1ea1ch \u0111i\u1ec1u ki\u1ec7n t\u00edn hi\u1ec7u c\u01a1 b\u1ea3n, c\u00e1c h\u1ec7 th\u1ed1ng con trong \u00f4 t\u00f4 v\u00e0 c\u00e1c thi\u1ebft b\u1ecb ch\u1ea1y b\u1eb1ng pin.<\/p>\n

M\u1ea1ch khu\u1ebfch \u0111\u1ea1i ho\u1ea1t \u0111\u1ed9ng \u0111a n\u0103ng (op-amps) \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y b\u1eb1ng c\u00e1ch cung c\u1ea5p hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady v\u1edbi m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi cho c\u00e1c d\u1ef1 \u00e1n \u01b0u ti\u00ean t\u00ednh linh ho\u1ea1t v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed. C\u00e1c v\u00ed d\u1ee5 bao g\u1ed3m c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 LM358 d\u1ef1a tr\u00ean PMOS, l\u00e0 c\u00e1c thi\u1ebft b\u1ecb bipolar \u0111\u00e3 \u0111\u01b0\u1ee3c kh\u1eb3ng \u0111\u1ecbnh gi\u00e1 tr\u1ecb b\u1ec1n v\u1eefng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p su\u1ed1t nhi\u1ec1u th\u1eadp k\u1ef7. M\u1ed9t v\u00ed d\u1ee5 v\u1ec1 b\u1ed9 khu\u1ebfch \u0111\u1ea1i \u0111a n\u0103ng CMOS l\u00e0 NCS20072, c\u00f3 s\u1eb5n trong nhi\u1ec1u lo\u1ea1i v\u1ecf b\u1ecdc nh\u1ecf g\u1ecdn.<\/p>\n

Th\u00e1ch th\u1ee9c: V\u01b0\u1ee3t qua c\u00e1c th\u00e1ch th\u1ee9c v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u1ed5n \u0111\u1ecbnh v\u1edbi b\u1ed9 khu\u1ebfch \u0111\u1ea1i kh\u00f4ng tr\u00f4i (Zero-Drift Amplifiers)<\/h4>\n

Trong c\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 ngay c\u1ea3 nh\u1eefng sai s\u1ed1 nh\u1ecf nh\u1ea5t c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi th\u00e1ch th\u1ee9c quan tr\u1ecdng l\u00e0 duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u1ed5n \u0111\u1ecbnh c\u1ef1c cao trong ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 r\u1ed9ng v\u00e0 th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng k\u00e9o d\u00e0i. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 thi\u1ebft b\u1ecb y t\u1ebf, thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng c\u00f4ng nghi\u1ec7p, \u1ee9ng d\u1ee5ng IoT v\u00e0 h\u1ec7 th\u1ed1ng ph\u1ea3n h\u1ed3i \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1.<\/p>\n

\u0110\u1ec3 \u0111\u00e1p \u1ee9ng nh\u1eefng y\u00eau c\u1ea7u kh\u1eaft khe n\u00e0y, c\u00e1c d\u00f2ng ampli chuy\u00ean d\u1ee5ng cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p:<\/p>\n

M\u1ea1ch khu\u1ebfch \u0111\u1ea1i kh\u00f4ng tr\u00f4i<\/h6>\n

M\u1ed9t th\u00e1ch th\u1ee9c quan tr\u1ecdng l\u00e0 s\u1ef1 tr\u00f4i d\u1ea1t t\u1ef1 nhi\u00ean c\u1ee7a \u0111i\u1ec7n \u00e1p offset do bi\u1ebfn \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9 v\u00e0 qu\u00e1 tr\u00ecnh l\u00e3o h\u00f3a. C\u00e1c ki\u1ebfn tr\u00fac kh\u00f4ng tr\u00f4i d\u1ea1t, nh\u01b0 trong c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 NCS21911, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 tr\u00f4i d\u1ea1t n\u00e0y, duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i b\u1ea5t k\u1ec3 bi\u1ebfn \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng.<\/p>\n

C\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i n\u00e0y th\u01b0\u1eddng t\u00edch h\u1ee3p c\u00e1c t\u00ednh n\u0103ng nh\u01b0 kh\u1ea3 n\u0103ng \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra t\u1eeb c\u1ef1c n\u00e0y sang c\u1ef1c kia (rail-to-rail) v\u00e0 d\u00f2ng \u0111i\u1ec7n t\u0129nh th\u1ea5p, gi\u00fap n\u00e2ng cao c\u1ea3 \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe. H\u01a1n n\u1eefa, t\u1ef7 l\u1ec7 lo\u1ea1i b\u1ecf ch\u1ebf \u0111\u1ed9 chung (CMRR) xu\u1ea5t s\u1eafc l\u00e0 m\u1ed9t \u0111\u1eb7c t\u00ednh quan tr\u1ecdng, gi\u00fap lo\u1ea1i b\u1ecf hi\u1ec7u qu\u1ea3 nhi\u1ec5u ch\u1ebf \u0111\u1ed9 chung kh\u00f4ng mong mu\u1ed1n, \u0111i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng khi k\u1ebft n\u1ed1i v\u1edbi b\u1ed9 chuy\u1ec3n \u0111\u1ed5i analog-to-digital (ADC) \u0111\u1ec3 thu th\u1eadp d\u1eef li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng cao. T\u1ef7 l\u1ec7 CMRR \u0111i\u1ec3n h\u00ecnh c\u1ee7a NCS21911 l\u00e0 130dB t\u1ea1i 4V.<\/p>\n

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H\u00ecnh 1: CMRR so v\u1edbi t\u1ea7n s\u1ed1<\/figcaption><\/figure>\n<\/div>\n

Th\u00e1ch th\u1ee9c: Gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 gi\u00e1m s\u00e1t d\u00f2ng \u0111i\u1ec7n ch\u00ednh x\u00e1c trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u0111\u1ed9ng l\u1ef1c.<\/h4>\n

Theo d\u00f5i d\u00f2ng \u0111i\u1ec7n ch\u00ednh x\u00e1c \u0111\u1eb7t ra m\u1ed9t lo\u1ea1t th\u00e1ch th\u1ee9c \u0111\u1eb7c th\u00f9 trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau, bao g\u1ed3m qu\u1ea3n l\u00fd ngu\u1ed3n \u0111i\u1ec7n, h\u1ec7 th\u1ed1ng ch\u1ea1y b\u1eb1ng pin (nh\u01b0 \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, m\u00e1y t\u00ednh x\u00e1ch tay v\u00e0 xe \u0111i\u1ec7n) v\u00e0 ch\u1ea9n \u0111o\u00e1n an to\u00e0n \u00f4 t\u00f4. C\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u1ea7n c\u00e1c gi\u1ea3i ph\u00e1p c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c d\u00f2ng \u0111i\u1ec7n trong ph\u1ea1m vi r\u1ed9ng c\u1ee7a \u0111i\u1ec7n \u00e1p ch\u1ebf \u0111\u1ed9 chung \u0111\u1ed3ng th\u1eddi gi\u1ea3m thi\u1ec3u ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng v\u00e0 chi ph\u00ed v\u1eadt li\u1ec7u (BOM).<\/p>\n

C\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i c\u1ea3m bi\u1ebfn d\u00f2ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y:<\/p>\n

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<\/figure>\n
H\u00ecnh 2: C\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i c\u1ea3m bi\u1ebfn d\u00f2ng \u0111i\u1ec7n t\u00edch h\u1ee3p c\u00e1c \u0111i\u1ec7n tr\u1edf b\u00ean ngo\u00e0i \u0111\u1ec3 cung c\u1ea5p \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n, gi\u1ea3i ph\u00e1p nh\u1ecf g\u1ecdn h\u01a1n, \u0111\u1ed3ng th\u1eddi v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c t\u00ednh kinh t\u1ebf c\u1ee7a c\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i op-amp \u0111\u1ed9c l\u1eadp.<\/figure>\n<\/div>\n
D\u1ea3i \u0111i\u1ec7n \u00e1p ch\u1ebf \u0111\u1ed9 chung r\u1ed9ng<\/h6>\n

M\u1ed9t th\u00e1ch th\u1ee9c l\u1edbn l\u00e0 \u0111o d\u00f2ng \u0111i\u1ec7n trong c\u00e1c c\u1ea5u h\u00ecnh cao \u00e1p, n\u01a1i \u0111i\u1ec7n tr\u1edf ph\u00e2n nh\u00e1nh kh\u00f4ng \u0111\u01b0\u1ee3c n\u1ed1i \u0111\u1ea5t. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi c\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i c\u00f3 kh\u1ea3 n\u0103ng x\u1eed l\u00fd \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o chung l\u1edbn, th\u01b0\u1eddng l\u00ean \u0111\u1ebfn 40V cho m\u1ed9t s\u1ed1 m\u00f4 h\u00ecnh ho\u1eb7c th\u1eadm ch\u00ed 80V cho c\u00e1c m\u00f4 h\u00ecnh kh\u00e1c nh\u01b0 NCS7031 ho\u1eb7c NCV7031 (\u00d4 t\u00f4) v\u00e0 NCS7041 ho\u1eb7c NCV7041 (\u00d4 t\u00f4). Kh\u1ea3 n\u0103ng n\u00e0y l\u00e0 thi\u1ebft y\u1ebfu cho c\u1ea3 \u0111o d\u00f2ng \u0111i\u1ec7n \u1edf ph\u00eda cao v\u00e0 ph\u00eda th\u1ea5p, mang l\u1ea1i s\u1ef1 linh ho\u1ea1t trong thi\u1ebft k\u1ebf v\u00e0 cho ph\u00e9p ph\u00e1t hi\u1ec7n c\u00e1c s\u1ef1 c\u1ed1 ng\u1eafn m\u1ea1ch t\u1ea3i trong c\u00e1c \u1ee9ng d\u1ee5ng ph\u00eda cao.<\/p>\n

\u0110\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 \u0111\u1ed9 l\u1ec7ch th\u1ea5p<\/h6>\n

\u0110\u1ed9 ch\u00ednh x\u00e1c trong \u0111o l\u01b0\u1eddng d\u00f2ng \u0111i\u1ec7n l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng h\u00e0ng \u0111\u1ea7u. C\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i n\u00e0y th\u01b0\u1eddng c\u00f3 \u0111i\u1ec7n \u00e1p l\u1ec7ch r\u1ea5t th\u1ea5p (v\u00ed d\u1ee5: \u00b112 \u00b5V t\u1ed1i \u0111a cho n\u1ec1n t\u1ea3ng Treo v\u00e0 ki\u1ebfn tr\u00fac kh\u00f4ng tr\u00f4i) \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c cao ngay c\u1ea3 khi c\u00f3 s\u1ef1 s\u1ee5t \u00e1p nh\u1ecf tr\u00ean \u0111i\u1ec7n tr\u1edf shunt. L\u1ef1a ch\u1ecdn thi\u1ebft k\u1ebf n\u00e0y gi\u00fap gi\u1ea3m thi\u1ec3u t\u1ed5n th\u1ea5t c\u00f4ng su\u1ea5t t\u1eeb \u0111i\u1ec7n tr\u1edf shunt \u0111\u1ed3ng th\u1eddi duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a \u0111o l\u01b0\u1eddng.<\/p>\n

T\u00edch h\u1ee3p v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed<\/h6>\n

Nhu c\u1ea7u li\u00ean t\u1ee5c v\u1ec1 vi\u1ec7c gi\u1ea3m di\u1ec7n t\u00edch bo m\u1ea1ch v\u00e0 chi ph\u00ed BOM l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng. M\u1ed9t s\u1ed1 gi\u1ea3i ph\u00e1p khu\u1ebfch \u0111\u1ea1i d\u00f2ng \u0111i\u1ec7n hi\u1ec7n t\u1ea1i t\u00edch h\u1ee3p c\u00e1c \u0111i\u1ec7n tr\u1edf \u0111i\u1ec1u ch\u1ec9nh h\u1ec7 s\u1ed1 khu\u1ebfch \u0111\u1ea1i, gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a thi\u1ebft k\u1ebf v\u00e0 gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng linh ki\u1ec7n ngo\u1ea1i vi. V\u00ed d\u1ee5, c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 NCS214R v\u00e0 NCS(V)2167x cung c\u1ea5p t\u00ednh n\u0103ng n\u00e0y. Ngo\u00e0i ra, c\u00e1c thi\u1ebft b\u1ecb n\u00e0y c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 c\u1ea3m bi\u1ebfn d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u ho\u1eb7c hai chi\u1ec1u, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng cho c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 s\u1ea1c pin, n\u01a1i d\u00f2ng \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111\u1ea3o chi\u1ec1u.<\/p>\n

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H\u00ecnh 3: S\u1ed1 l\u01b0\u1ee3ng th\u00e0nh ph\u1ea7n h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c gi\u1ea3m \u0111\u00e1ng k\u1ec3 khi s\u1eed d\u1ee5ng gi\u1ea3i ph\u00e1p t\u00edch h\u1ee3p hai k\u00eanh.<\/figcaption><\/figure>\n<\/div>\n

Th\u00e1ch th\u1ee9c: V\u01b0\u1ee3t qua c\u00e1c h\u1ea1n ch\u1ebf c\u1ee7a Thi\u1ebft k\u1ebf Ph\u1ed5 qu\u00e1t b\u1eb1ng c\u00e1c thu\u1ed9c t\u00ednh n\u00e2ng cao c\u1ee7a b\u1ed9 khu\u1ebfch \u0111\u1ea1i.<\/h4>\n

Ngo\u00e0i vi\u1ec7c gi\u1ea3i quy\u1ebft c\u00e1c lo\u1ea1i b\u1ed9 khu\u1ebfch \u0111\u1ea1i c\u1ee5 th\u1ec3, m\u1ed9t s\u1ed1 th\u00e1ch th\u1ee9c chung th\u01b0\u1eddng g\u1eb7p trong thi\u1ebft k\u1ebf \u0111i\u1ec7n t\u1eed, v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p b\u1ed9 khu\u1ebfch \u0111\u1ea1i hi\u1ec7n \u0111\u1ea1i cung c\u1ea5p c\u00e1c \u0111\u1eb7c t\u00ednh quan tr\u1ecdng \u0111\u1ec3 v\u01b0\u1ee3t qua ch\u00fang:<\/p>\n

\u0110\u1ed9 tin c\u1eady trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t<\/h6>\n

Nhi\u1ec1u \u1ee9ng d\u1ee5ng, \u0111\u1eb7c bi\u1ec7t trong ng\u00e0nh \u00f4 t\u00f4 (H\u1ec7 th\u1ed1ng H\u1ed7 tr\u1ee3 L\u00e1i xe N\u00e2ng cao (ADAS), \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 v\u00e0 h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd pin), \u0111\u00f2i h\u1ecfi c\u00e1c linh ki\u1ec7n c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 c\u1ef1c cao (l\u00ean \u0111\u1ebfn 150\u00b0C cho m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb s\u1eafp ra m\u1eaft tr\u00ean n\u1ec1n t\u1ea3ng Treo) v\u00e0 \u0111i\u1ec1u ki\u1ec7n \u0111i\u1ec7n \u00e1p kh\u1eafc nghi\u1ec7t. \u0110\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c ti\u00eau chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng \u00f4 t\u00f4 nh\u01b0 AEC-Q100 v\u00e0 kh\u1ea3 n\u0103ng PPAP l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c linh ki\u1ec7n nh\u01b0 NCV210R v\u00e0 NCV333 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u \u0111\u1ed9 tin c\u1eady nghi\u00eam ng\u1eb7t n\u00e0y.<\/p>\n

Hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng<\/h6>\n

Nhu c\u1ea7u v\u1ec1 th\u1eddi l\u01b0\u1ee3ng pin k\u00e9o d\u00e0i v\u00e0 ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p trong c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng, IoT v\u00e0 h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p \u0111\u00f2i h\u1ecfi c\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i c\u00f3 d\u00f2ng \u0111i\u1ec7n t\u0129nh c\u1ef1c th\u1ea5p, \u0111\u00f4i khi ch\u1ec9 v\u00e0i ch\u1ee5c microampe \u0111\u1ed1i v\u1edbi b\u1ed9 khu\u1ebfch \u0111\u1ea1i op-amp ho\u1eb7c th\u1eadm ch\u00ed v\u00e0i nanoampe \u0111\u1ed1i v\u1edbi b\u1ed9 so s\u00e1nh, nh\u01b0 n\u1ec1n t\u1ea3ng Treo v\u1edbi 315 nA m\u1ed7i k\u00eanh. M\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng t\u1ed1i thi\u1ec3u n\u00e0y \u0111\u01b0\u1ee3c \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t.<\/p>\n

T\u1ed1i \u01b0u h\u00f3a kh\u00f4ng gian<\/h6>\n

Miniaturization l\u00e0 m\u1ed9t y\u00eau c\u1ea7u kh\u00f4ng ng\u1eebng trong l\u0129nh v\u1ef1c \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i. C\u00e1c gi\u1ea3i ph\u00e1p khu\u1ebfch \u0111\u1ea1i \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i trong c\u00e1c g\u00f3i nh\u1ecf g\u1ecdn nh\u01b0 CSP (Chip Scale Packages) v\u00e0 uQFNS (micro Quad-Flat No-lead) cho n\u1ec1n t\u1ea3ng Treo gi\u00fap c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf gi\u1ea3m \u0111\u00e1ng k\u1ec3 di\u1ec7n t\u00edch bo m\u1ea1ch, \u0111i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng cho c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed \u0111eo \u0111\u01b0\u1ee3c.<\/p>\n

Ph\u1ea3n h\u1ed3i nhanh v\u00e0 \u0111i\u1ec1u khi\u1ec3n<\/h6>\n

Trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ed9ng nh\u01b0 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 v\u00e0 \u0111i\u1ec1u ch\u1ec9nh c\u00f4ng su\u1ea5t, x\u1eed l\u00fd t\u00edn hi\u1ec7u nhanh ch\u00f3ng l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng. C\u00e1c b\u1ed9 so s\u00e1nh s\u1eafp ra m\u1eaft t\u1eeb Treo Platform c\u00f3 \u0111\u1ed9 tr\u1ec5 truy\u1ec1n t\u00edn hi\u1ec7u nhanh 40 ns v\u00e0 ph\u1ea3n \u1ee9ng chuy\u1ec3n ti\u1ebfp nhanh, cho ph\u00e9p \u0111i\u1ec1u khi\u1ec3n ch\u00ednh x\u00e1c v\u00e0 k\u1ecbp th\u1eddi, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi s\u1ef1 \u1ed5n \u0111\u1ecbnh v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n

Ph\u00f9 h\u1ee3p kh\u1ea3 n\u0103ng c\u1ee7a b\u1ed9 khu\u1ebfch \u0111\u1ea1i v\u1edbi y\u00eau c\u1ea7u c\u1ee7a \u1ee9ng d\u1ee5ng<\/h4>\n

L\u1ef1a ch\u1ecdn b\u1ed9 khu\u1ebfch \u0111\u1ea1i ph\u00f9 h\u1ee3p cho thi\u1ebft k\u1ebf \u0111i\u1ec7n t\u1eed t\u01b0\u01a1ng t\u1ef1 nh\u01b0 vi\u1ec7c ch\u1ecdn c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p cho m\u1ed9t nhi\u1ec7m v\u1ee5 c\u1ee5 th\u1ec3 trong d\u1ef1 \u00e1n x\u00e2y d\u1ef1ng ph\u1ee9c t\u1ea1p. Gi\u1ed1ng nh\u01b0 c\u00f4ng c\u1ee5 chuy\u00ean d\u1ee5ng gi\u00fap th\u1ee3 th\u1ee7 c\u00f4ng th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c tinh t\u1ebf ho\u1eb7c ph\u1ee9c t\u1ea1p v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 cao, c\u00e1c ki\u1ebfn tr\u00fac b\u1ed9 khu\u1ebfch \u0111\u1ea1i kh\u00e1c nhau \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi c\u00e1c kh\u1ea3 n\u0103ng ri\u00eang bi\u1ec7t \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c th\u00e1ch th\u1ee9c \u0111\u1eb7c th\u00f9 trong m\u1ea1ch \u0111i\u1ec7n t\u1eed.<\/p>\n

D\u00f9 l\u00e0 nhu c\u1ea7u v\u1ec1 t\u00ednh linh ho\u1ea1t cao, \u0111\u1ed9 ch\u00ednh x\u00e1c cao trong m\u00f4i tr\u01b0\u1eddng bi\u1ebfn \u0111\u1ed9ng, hay gi\u00e1m s\u00e1t d\u00f2ng \u0111i\u1ec7n ch\u00ednh x\u00e1c trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n, vi\u1ec7c hi\u1ec3u r\u00f5 th\u00e1ch th\u1ee9c thi\u1ebft k\u1ebf c\u1ee5 th\u1ec3 cho ph\u00e9p c\u00e1c k\u1ef9 s\u01b0 t\u1eadn d\u1ee5ng c\u00e1c t\u00ednh n\u0103ng chuy\u00ean bi\u1ec7t c\u1ee7a c\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i hi\u1ec7n \u0111\u1ea1i, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u1eefng b\u1ed9 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u00ean n\u1ec1n t\u1ea3ng Treo ti\u00ean ti\u1ebfn, \u0111\u1ec3 hi\u1ec7n th\u1ef1c h\u00f3a c\u00e1c \u00fd t\u01b0\u1edfng \u0111i\u1ec7n t\u1eed c\u1ee7a h\u1ecd.<\/p>\n

T\u00ecm hi\u1ec3u th\u00eam v\u1ec1 c\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i c\u1ee7a onsemi v\u00e0 li\u00ean h\u1ec7 v\u1edbi b\u1ed9 ph\u1eadn b\u00e1n h\u00e0ng \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 th\u00eam.<\/p>","protected":false},"excerpt":{"rendered":"

Whether you’re dealing with low-power sensor interfaces, high-speed data acquisition, or precision instrumentation, the amplifier you choose can significantly impact<\/p>","protected":false},"author":1,"featured_media":8682,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-8681","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"aioseo_notices":[],"jetpack_publicize_connections":[],"_links":{"self":[{"href":"https:\/\/www.lxbchip.com\/vi\/wp-json\/wp\/v2\/posts\/8681","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lxbchip.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lxbchip.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lxbchip.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lxbchip.com\/vi\/wp-json\/wp\/v2\/comments?post=8681"}],"version-history":[{"count":1,"href":"https:\/\/www.lxbchip.com\/vi\/wp-json\/wp\/v2\/posts\/8681\/revisions"}],"predecessor-version":[{"id":8686,"href":"https:\/\/www.lxbchip.com\/vi\/wp-json\/wp\/v2\/posts\/8681\/revisions\/8686"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lxbchip.com\/vi\/wp-json\/wp\/v2\/media\/8682"}],"wp:attachment":[{"href":"https:\/\/www.lxbchip.com\/vi\/wp-json\/wp\/v2\/media?parent=8681"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lxbchip.com\/vi\/wp-json\/wp\/v2\/categories?post=8681"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lxbchip.com\/vi\/wp-json\/wp\/v2\/tags?post=8681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}