PGA112

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design PGA112, PGA113, PGA116, PGA117 SBOS424C – MARCH 2008 – REVISED NOVEMBER 2015 PGA11x Zerø-Drift Programmable Gain Amplifier With Mux 1 Features 1 Rail-to-Rail Input and Output Offset: 25 μV (Typical), 100 μV (Maximum) Zerø Drift: 0.35 μV/°C (Typical), 1.2 μV/°C (Maximum) Low Noise: 12 nV/√Hz Input Offset Current: ±5 nA Maximum (25°C) Gain Error: 0.1% Maximum (G ≤ 32), 0.3% Maximum (G > 32) Binary Gains: 1, 2, 4, 8, 16, 32, 64, 128 (PGA112, PGA116) Scope Gains: 1, 2, 5, 10, 20, 50, 100, 200 (PGA113, PGA117) Gain Switching Time: 200 ns 2 Channel MUX: PGA112, PGA113 10 Channel MUX: PGA116, PGA117 Four Internal Calibration Channels Amplifier Optimized for Driving CDAC ADCs Output Swing: 50 mV to Supply Rails AVDD and DVDD for Mixed Voltage Systems IQ = 1.1 mA (Typical) Software and Hardware Shutdown: IQ ≤ 4 μA (Typical) Temperature Range: –40°C to 125°C SPI™ Interface (10 MHz) With Daisy-Chain Capability 2 Applications Remote e-Meter Reading Automatic Gain Control Portable Data Acquisition PC-Based Signal Acquisition Systems Test and Measurement Programmable Logic Controllers Battery-Powered Instruments Handheld Test Equipment 3 Description The PGA112 and PGA113 devices (binary and scope gains) offer two analog inputs, a three-pin SPI interface, and software shutdown in a 10-pin, VSSOP package. The PGA116 and PGA117 (bina...