The LTA8181, LTA8182 and LTA8184 (LTA818x) are a family of zero-drift, low power, rail-to-rail output operational amplifiers capable of operating on wide supplies ranging from +4.5 V (±2.25 V)

to +48 V (±24 V). The LTA818x op-amps use Linearin‘s proprietary auto-zeroing techniques to offer outstanding dc precision and ac performance, including low offset voltage (25 μV maximum), near

zero-drift over time and temperature, 4 MHz bandwidth, and 0.32 μVPP input voltage noise at 0.1 Hz to 10 Hz. These high-precision, low-quiescent-current op-amps offer high input impedance and

rail-to-rail output swing within 10 mV of the rails. The input common-mode range includes the negative rail.

The single version LTA8181 device is available in micro-size MSOP-8L, SOT-23-5L, and SOIC-8L packages. The dual version LTA8182 device is offered in MSOP-8L and SOIC-8L packages. The quad version LTA8184 device is offered in SOIC-14L and TSSOP-14L packages. All versions are specified for operation from –40°C to +125°C.

• High DC Precision

  ±25 μV (maximum) VOS with a Drift of ±50 nV/℃

  – CMRR: 132 dB

  PSRR: 135 dB

  A_VOL: 136 dB

  V_n: 0.32 μV_PP (0.1 to 10 Hz)

• Wide Supply: ±2.25 V to &±24 V, 4.5 V to 48 V
• Gain Bandwidth: 4 MHz
• Slew Rate: 2.6 V/μs
• Low Quiescent Current: 600 μs per amplifier
• Low Bias Current: ±150 pA
• Rail-to-Rail Output Operation

• High-Side and Low-Side Current Sensing
• Transducer Amplifiers
• Precision Active Filters
• Programmable Logic Controllers
• Test and Measurement Equipment
• Multiplexed Data-Acquisition Systems
• Tracking Amplifier in Power Modules
• Power Delivery: UPS, Server, and Merchant Network Power