AD8253ARMZ-R7

AD8253 is a digitally programmable gain instrumentation amplifier. ARMZ refers to the 8-lead MSOP compact surface-mount package. The suffix R7 stands for 7-inch lead-free tape-and-reel packaging tailored for high-volume automated SMT manufacturing.

This integrated instrumentation amplifier features four internally fixed gain settings selectable via two digital logic pins: 1, 10, 100 and 1000 times. No external feedback resistors are required, which eliminates resistor matching errors and simplifies circuit design drastically.

The device delivers excellent DC precision performance. Maximum input offset voltage is only 50 μV, accompanied by ultra-low drift across temperature variations. Input bias current is kept at a minimal level to guarantee accurate signal acquisition from resistive bridge transducers and low-level sensors.

It supports both single supply and dual bipolar supply operation. Single supply voltage ranges from 2.7 V to 36 V, while dual supply spans ±1.35 V to ±18 V, adapting to diverse industrial power supply architectures. Input common-mode voltage range is wide, and the common-mode rejection ratio remains exceptionally high at low frequencies to suppress power-line interference effectively.

Settling time is rapid even at maximum gain, making it suitable for sequential multi-channel scanning measurement systems. Power consumption is moderate, and the internal circuit structure restricts crosstalk and noise interference. Digital control pins are compatible with standard 3.3 V and 5 V logic levels for direct connection to general microcontrollers.

Housed in a miniature 8-pin MSOP plastic surface-mount package with small overall dimensions to save PCB layout space for compact sensor acquisition modules. Moisture Sensitivity Level is MSL3; all reflow soldering work must be completed within 168 hours after the original vacuum packaging is unsealed. Continuous tape reel feeding is fully compatible with automatic component placement machines for mass production assembly lines.

The industrial operating temperature range covers -40 °C to +125 °C, allowing reliable long-term operation in industrial process controllers, portable precision measuring equipment, weighing instruments and automotive sensing modules under fluctuating temperature and electromagnetic interference conditions. Fabricated using lead-free manufacturing processes, the component complies with worldwide RoHS environmental regulations. The fully integrated gain structure removes numerous discrete peripheral components, shortens analog front-end development cycles and improves measurement consistency in mass-produced devices.

Strain gauge, load cell and pressure transducer signal amplification circuits

Multi-channel programmable gain data acquisition front-end modules

Portable handheld measuring instruments with auto-ranging function

Industrial temperature and force monitoring sensor conditioning units

Battery-powered field calibration and detection equipment