PGA112AIDGST
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Texas Instruments PGA112AIDGST

Manufacturer No:
PGA112AIDGST
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC OPAMP PGA 1 CIRCUIT 10VSSOP
Delivery:
Payment:
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Product Introduction

Overview

The PGA112AIDGST is a precision programmable gain amplifier (PGA) produced by Texas Instruments. This device is part of the PGA112 and PGA113 series, offering advanced features such as zero-drift, low noise, and programmable gain. It is packaged in a 10-pin VSSOP (DGS) package, making it suitable for a variety of applications requiring high precision and flexibility.

The PGA112AIDGST is designed to provide high accuracy with a typical offset of 25 µV and a maximum offset of 100 µV. It also features a zero-drift characteristic of 0.35 µV/°C (typical) and 1.2 µV/°C (maximum), ensuring stable performance over a wide temperature range.

Key Specifications

Parameter Value Unit
Package Type VSSOP-10
Pins 10
Operating Temperature Range -40 to 125 °C
Supply Voltage 2.2 to 5.5 V
Offset Voltage 25 µV (Typical), 100 µV (Maximum) µV
Zero Drift 0.35 µV/°C (Typical), 1.2 µV/°C (Maximum) µV/°C
Noise 12 nV/√Hz nV/√Hz
Input Offset Current ±5 nA (Maximum at 25°C) nA
Gain Error 0.1% (Maximum for G ≤ 32), 0.3% (Maximum for G > 32) %
Binary Gains 1, 2, 4, 8, 16, 32, 64, 128
Gain Switching Time 200 ns ns
Number of Analog Inputs 2
MUX Channels 2 Channel MUX
Internal Calibration Channels Four
Output Swing 50 mV to Supply Rails mV
Quiescent Current (Analog) 1.1 mA (Typical) mA
Shutdown Current ≤ 4 µA (Typical) µA
SPI Interface 10 MHz with Daisy-Chain Capability

Key Features

  • Rail-to-Rail Input and Output: Ensures maximum signal range utilization.
  • Zero Drift: Maintains stability over temperature changes with a typical drift of 0.35 µV/°C.
  • Low Noise: Features a low noise level of 12 nV/√Hz, ideal for high-precision applications.
  • Programmable Gain: Offers binary gains of 1, 2, 4, 8, 16, 32, 64, and 128.
  • Gain Switching Time: Fast gain switching time of 200 ns.
  • 2 Channel MUX: Allows selection between two analog input channels.
  • Internal Calibration Channels: Four internal channels for system-level calibration.
  • Amplifier Optimized for Driving CDAC ADCs: Designed to drive Capacitor Digital-to-Analog Converters (CDAC) ADCs efficiently.
  • Output Swing: Output voltage swing from 50 mV to the supply rails.
  • Mixed Voltage Systems Support: Separate AVDD and DVDD for mixed voltage systems.
  • Low Quiescent Current: Typical quiescent current of 1.1 mA.
  • Software and Hardware Shutdown: Low shutdown current of ≤ 4 µA (typical).
  • SPI Interface with Daisy-Chain Capability: Supports SPI interface at 10 MHz with daisy-chain capability.

Applications

  • Portable Data Acquisition Systems: Ideal for battery-powered and handheld data acquisition systems.
  • PC-Based Signal Acquisition Systems: Suitable for PC-based systems requiring high precision and programmable gain.
  • Test and Measurement Equipment: Used in various test and measurement instruments due to its high accuracy and low noise.
  • Programmable Logic Controllers (PLCs): Can be integrated into PLCs for industrial automation applications.
  • Battery-Powered Instruments: Suitable for battery-powered devices requiring low power consumption and high precision.
  • Handheld Test Equipment: Ideal for handheld test equipment due to its compact size and low power consumption.

Q & A

  1. What is the typical offset voltage of the PGA112AIDGST?

    The typical offset voltage is 25 µV, with a maximum of 100 µV.

  2. What is the zero-drift characteristic of the PGA112AIDGST?

    The zero-drift is 0.35 µV/°C (typical) and 1.2 µV/°C (maximum).

  3. What is the noise level of the PGA112AIDGST?

    The noise level is 12 nV/√Hz.

  4. What are the available binary gains for the PGA112AIDGST?

    The available binary gains are 1, 2, 4, 8, 16, 32, 64, and 128.

  5. How many analog input channels does the PGA112AIDGST have?

    The PGA112AIDGST has two analog input channels with a 2-channel MUX.

  6. What is the gain switching time of the PGA112AIDGST?

    The gain switching time is 200 ns.

  7. Does the PGA112AIDGST support mixed voltage systems?

    Yes, it supports mixed voltage systems with separate AVDD and DVDD.

  8. What is the typical quiescent current of the PGA112AIDGST?

    The typical quiescent current is 1.1 mA.

  9. How does the PGA112AIDGST handle shutdown?

    The device supports both software and hardware shutdown with a shutdown current of ≤ 4 µA (typical).

  10. What is the operating temperature range of the PGA112AIDGST?

    The operating temperature range is -40°C to 125°C.

Product Attributes

Amplifier Type:Programmable Gain
Number of Circuits:1
Output Type:Rail-to-Rail
Slew Rate:8V/µs
Gain Bandwidth Product:- 
-3db Bandwidth:10 MHz
Current - Input Bias:1.5 nA
Voltage - Input Offset:75 µV
Current - Supply:330µA
Current - Output / Channel:60 mA
Voltage - Supply Span (Min):2.2 V
Voltage - Supply Span (Max):5.5 V
Operating Temperature:-40°C ~ 125°C
Mounting Type:Surface Mount
Package / Case:10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package:10-VSSOP
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Similar Products

Part Number PGA112AIDGST PGA113AIDGST PGA112AIDGSR
Manufacturer Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active
Amplifier Type Programmable Gain Programmable Gain Programmable Gain
Number of Circuits 1 1 1
Output Type Rail-to-Rail Rail-to-Rail Rail-to-Rail
Slew Rate 8V/µs 8V/µs 8V/µs
Gain Bandwidth Product - - -
-3db Bandwidth 10 MHz 10 MHz 10 MHz
Current - Input Bias 1.5 nA 1.5 nA 1.5 nA
Voltage - Input Offset 75 µV 75 µV 75 µV
Current - Supply 330µA 330µA 330µA
Current - Output / Channel 60 mA - -
Voltage - Supply Span (Min) 2.2 V 2.2 V 2.2 V
Voltage - Supply Span (Max) 5.5 V 5.5 V 5.5 V
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package 10-VSSOP 10-VSSOP 10-VSSOP

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