INA129 Datasheet | Texas Instruments

Features - Low offset voltage: 50μV, maximum - Low drift: 0.5μV/°C, maximum - Low input bias current: - 5n A, maximum (CSO: SHE) - 0.7n A, maximum (CSO: FRE) - Low noise: 8n V/√Hz, 0.2μVpp - High CMR: 120d B, minimum - Bandwidth: 1.3MHz (G = 1) - Inputs protected to ±40V - Wide supply range: ±2.25V to ±18V - Low quiescent current: 700μA - Packages: 8-pin plastic DIP, SO-8 2 Applications - Pressure transmitter - Temperature transmitter - Weigh scale - Electrocardiogram (ECG) - Analog input module - Data acquisition (DAQ) 3 Description The INA128 and INA129 (INA12x) are low-power, general-purpose instrumentation amplifiers that offer excellent accuracy. The versatile three op amp design and small size make these amplifiers an excellent choice for a wide range of applications. Currentfeedback input circuitry provides wide bandwidth even at high gain (200k Hz at G = 100). A single external resistor sets any gain from 1 to 10,000. The INA128 provides an industry-standard gain equation with a 50kΩ resistor. The INA129 gain equation uses a 49.4kΩ resistor to allow for drop-in replacements of parable devices. The INA12x are available in plastic DIP and surfacemount packages, specified for the - 40°C to +85°C temperature range. The INA128 is also available in a dual configuration, the INA2128. The upgraded INA828 offers a lower input bias current (0.6n A, maximum) and lower noise (7n V/ √Hz) at the same quiescent current. See the Device parison Table for a selection of precision instrumentation amplifiers from Texas Instruments. Device Information PART NUMBER(3) PACKAGE(1) PACKAGE SIZE(2) INA128, INA129 D (SOIC, 8) P (PDIP, 8) 4.9mm × 6mm 9.81mm × 9.43mm 2 Overvoltage VIN- Protection RG...