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PGA112 Datasheet(PDF) 1 Page - Texas Instruments |
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PGA112 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 40 page PGA112 PGA113 PGA117 PGA116 PGA116 1 FEATURES APPLICATIONS DESCRIPTION 10kW ADC G=1 R F R I Output Stage SPI Interface SCLK DIO CS 7 V OUT 5 DV DD 10 AV DD 1 GND 6 V REF 4 3 8 9 MSP430 Microcontroller +3V +5V V REF PGA112 PGA113 V /CH0 CAL 2 CH1 CAL3 CAL4 CAL1 CAL2 0.1V CAL 0.9V CAL 10kW 80kW MUX CAL2/3 C 0.1 F BYPASS m C 0.1 F BYPASS m C 0.1 F BYPASS m PGA112,, PGA113 PGA116, PGA117 www.ti.com ......................................................................................................................................................... SBOS424A – MARCH 2008 – REVISED JUNE 2008 Single-Supply, Single-Ended, Precision Programmable Gain Amplifier with MUX • Remote e-Meter Reading 23 • Rail-to-Rail Input/Output • Automatic Gain Control • Offset: 25µV (typ), 100µV (max) • Portable Data Acquisition • Zerø Drift: 0.35µV/°C (typ), 1.2µV/°C (max) • PC-Based Signal Acquisition Systems • Low Noise: 12nV/√Hz • Test and Measurement • Input Offset Current: ±5nA max (+25°C) • Programmable Logic Controllers • Gain Error: 0.1% max (G ≤ 32), • Battery-Powered Instruments 0.3% max (G > 32) • Handheld Test Equipment • Binary Gains: 1, 2, 4, 8, 16, 32, 64, 128 (PGA112, PGA116) • Scope Gains: 1, 2, 5, 10, 20, 50, 100, 200 The PGA112 and PGA113 (binary/scope gains) offer (PGA113, PGA117) two analog inputs, a three-pin SPI interface, and • Gain Switching Time: 200ns software shutdown in an MSOP-10 package. The • Two Channel MUX: PGA112, PGA113 PGA116 and PGA117 (binary/scope gains) offer 10 10 Channel MUX: PGA116, PGA117 analog inputs, a four-pin SPI interface with daisy-chain capability, and hardware and software • Four Internal Calibration Channels shutdown in a TSSOP-20 package. • Amplifier Optimized for Driving CDAC ADCs All versions provide internal calibration channels for • Output Swing: 50mV to Supply Rails system-level calibration. The channels are tied to • AV DD and DVDD for Mixed Voltage Systems GND, 0.9VCAL, 0.1VCAL, and VREF, respectively. VCAL, • I Q = 1.1mA (typ) an external voltage connected to Channel 0, is used as the system calibration reference. Binary gains are: • Software/Hardware Shutdown: I Q ≤ 4µA (typ) 1, 2, 4, 8, 16, 32, 64, and 128; scope gains are: 1, 2, • Temperature Range: –40°C to +125°C 5, 10, 20, 50, 100, and 200. • SPI™ Interface (10MHz) with Daisy-Chain Capability 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 SPI is a trademark of Motorola. 3 All other trademarks are the property of their respective owners. UNLESS OTHERWISE NOTED this document contains Copyright © 2008, Texas Instruments Incorporated PRODUCTION DATA information current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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