LTA77F中文资料高压运算放大器数据手册Linearin规格书

描述 Description

The LTA77 is a 44-V micro-power alternative to the industry-standard OP77/OP07 precisionamplifiers. The LTA77 offer outstanding dc precision and ac performance, including 25 μV ultralowoffset, below 0.3 μV/°C drift over temperature, 0.5 μVP-P input voltage noise and 0.9 MHz bandwidth.External offset trimming is not required in the majority of circuits.A PSRR of 3 μV/V (110 dB) and CMRR of 1.0 μV/V (120 dB) maximum virtually eliminate errorscaused by power supply drifts and common-mode signals. This combination of outstandingcharacteristics makes the LTA77 ideally suited for high resolution instrumentation and other tighterror budget systems.The robust design of the LTA77 provides ease-of-use to the circuit designer: integrated RF/EMIrejection filter, no phase reversal in overdrive conditions, and high electro-static discharge (ESD)protection. The LTA77 is optimized for operation at voltages from +6 V (±3 V) to +44 V (±22 V) overthe extended temperature range of −40 °C to +125 °C.

特性 Features

•  Offset Voltage: 25 μV Maximum (LTA77E)
•  Offset Voltage Drift: 0.3 μV/°C Maximum (LTA77E)
•  0.1 to 10 Hz Noise: 0.5 μVP-P
•  High Common-Mode Rejection: 0.1 μV/V (140 dB)
•  Wide Supply: ±3 V to ±22 V, 6 V to 44 V
•  Wide Bandwidth: 0.9 MHzn High Slew Rate: 0.48 V/μs
•  Low Quiescent Current: 1 mA per Amplifier
•  EMI/RFI Filtered Inputs

应用 Application

•  Replaces OP07/OP77/OP97/OP177 with Improved Performance
•  High-Side and Low-Side Current Sensing
•  Multiplexed Data-Acquisition Systems
•  Test and Measurement Equipment
•  High-Resolution ADC Driver Amplifiers
•  SAR ADC Reference Buffers
•  Programmable Logic Controllers
•  High Precision Comparator