Two Channel MUX: PGA112, PGA113 10 Channel MUX: PGA116, PGA117
Four Internal Calibration Channels
Amplifier Optimized for Driving CDAC ADCs
Output Swing: 50mV to Supply Rails
AVDD and DVDD for Mixed Voltage Systems
IQ = 1.1mA (typ)
Software/Hardware Shutdown: IQ ≤ 4µA (typ)
Temperature Range: -40°C to +125°C
SPI Interface (10MHz) with Daisy-Chain Capability
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
SPI is a trademark of Motorola. All other trademarks are the property of their respective owners
Description
The PGA112 and PGA113 (binary/scope gains) offer two analog inputs, a three-pin SPI interface, and software shutdown in an MSOP-10 package. The PGA116 and PGA117 (binary/scope gains) offer 10 analog inputs, a four-pin SPI interface with daisy-chain capability, and hardware and software shutdown in a TSSOP-20 package.
All versions provide internal calibration channels for system-level calibration. The channels are tied to GND, 0.9VCAL, 0.1VCAL, and VREF, respectively. VCAL, an external voltage connected to Channel 0, is used as the system calibration reference. Binary gains are: 1, 2, 4, 8, 16, 32, 64, and 128; scope gains are: 1, 2, 5, 10, 20, 50, 100, and 200.
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