INA148

ACTIVE

+-200V Common-Mode Voltage Difference Amplifier

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Product details

Parameters

Number of channels (#) 1 Vs (Min) (V) 2.7 Vs (Max) (V) 36 CMRR (Min) (dB) 70 Common mode input low (Min) (V) -200 Common mode input high (Max) (V) 200 Input offset (+/-) (Max) (uV) 5000 Iq (Typ) (mA) 0.6 Small signal bandwidth (Typ) (MHz) 0.1 Slew rate (Typ) (V/us) 1 Gain (Min) (V/V) 1 Gain (Max) (V/V) 1 Gain error (+/-) (Max) (%) 0.075 Rating Catalog Operating temperature range (C) -55 to 125 Gain drift (Max) (ppm/C) 3 open-in-new Find other Difference amplifiers

Package | Pins | Size

SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new Find other Difference amplifiers

Features

  • LOW NONLINEARITY: 0.002% max
  • HIGH COMMON-MODE VOLTAGE:
    • +75V at VS = +5V
    • ±200V at VS = ±15V
  • FIXED DIFFERENTIAL GAIN = 1V/V
  • LOW QUIESCENT CURRENT: 260µA
  • WIDE SUPPLY RANGE:
    • Single Supply: 2.7V to 36V
    • Dual Supplies: ±1.35V to ±18V
  • LOW GAIN ERROR: 0.075% max
  • HIGH CMR: 86dB
  • SO-8 PACKAGE
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Description

The INA148 is a precision, low-power, unity-gain difference amplifier with a high common-mode input voltage range. It consists of a monolithic precision bipolar op amp with a thin-film resistor network.

The on-chip resistors are laser trimmed for an accurate 1V/V differential gain and high common-mode rejection. Excellent temperature tracking of the resistor network maintains high gain accuracy and common-mode rejection over temperature. The INA148 will operate on single or dual supplies.

The INA148 is available in a small SO-8 surface-mount package and it is specified for the –40°C to +85°C extended industrial temperature range.

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Exact equivalent in functionality and parametrics to the compared device:
INA149 ACTIVE High Common Mode Voltage Difference Amplifier For wider common mode input range (±275) and lower power consumption (0.81mA) see the INA149

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet +/-200V Common-Mode Voltage Difference Amplifier datasheet Sep. 27, 2000
Application notes 16-Bit 8-Channel PLC Analog Input Module with High Voltage (±150 V) Common Mode Apr. 27, 2020
White papers The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Technical articles Difference Amplifiers—the need for well-matched resistors Apr. 24, 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

Features
  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost

Design tools & simulation

SIMULATION MODELS Download
SBFC028A.ZIP (5 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SBOC019A.ZIP (55 KB) - PSpice Model
SIMULATION MODELS Download
SBOC156B.TSC (83 KB) - TINA-TI Reference Design
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide
CALCULATION TOOLS Download
Free Tool: Gain and Component Calculators for Differential Op Amps
DIFFAMPGAINCALC This folder contains a gain calculator and a component calculator for fully differential operational amplifiers.

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options

Ordering & quality

Support & training

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