ISL28470 Quad Channel Micro-power, Single Supply, Rail-to-Rail Input and Output (RRIO) Instrumentation Amplifier

ISL28470

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Quad Channel Micro-power, Single Supply, Rail-to-Rail Input and Output (RRIO) Instrumentation Amplifier

Datasheets,
Related Docs
& Simulations

Ordering Information

iBuy direct from Intersil	iBuy direct - out of stock	Request samples
Check distributor inventory	Available in RoHS/Pb-Free

Part No.

Design-In
Status

Temp.

Package

MSL

Price
US $

ISL28470EVAL1Z

Active

Eval Board

N/A

ISL28470FAZ

Active

Full-Range Ind

28 Ld QSOP

2.33

ISL28470FAZ-T7

Active

Full-Range Ind

28 Ld QSOP T+R

2.33

The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice.

MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020

SMD = Standard Microcircuit Drawing

Description

The ISL28270 and ISL28273 are dual channel micropower instrumentation amplifiers (in-amps) and the ISL28470 is a quad channel in-amp optimized for single supply operation over the +2.4V to +5.5V range.

All three devices feature an Input Range Enhancement Circuit (IREC) which maintains CMRR performance for input voltages equal to the positive supply and down to 50mV above the negative supply rail. The input signal is capable of swinging above the positive supply rail and to 10mV above the negative supply with only a slight degradation of the CMRR performance. The output operation is rail-to-rail.

The ISL28273 is compensated for a minimum gain of 10 or more. For higher gain applications, the ISL28270 and ISL28470 are compensated for a minimum gain of 100. The in-amps have bipolar input devices for best offset and excellent 1/f noise performance. The amplifiers can be operated from one lithium cell or two Ni-Cd batteries.

Key Features

150μV Max Offset Voltage (ISL28270, ISL28470)
600μV Max Offset Voltage (ISL28273)
2.5nA Max Input Bias Current (ISL28270, ISL28470)
110dB CMRR
0.7μV/°C Offset Voltage Temperature Co-efficient
240kHz -3dB Bandwidth (G = 100) ISL28270, ISL28470
230kHz -3dB Bandwidth (G = 10) ISL28273
Single Supply Operation
Rail-to-Rail Input and Output (RRIO)
Pb-Free (RoHS Compliant)

Related Documentation

Application Note(s):
Instrumentation Amplifier Application Note

Datasheet(s):
Dual and Quad Channel Micropower, Single Supply, Rail-to-Rail Input and Output (RRIO) Instrumentation Amplifiers デュアルおよびクアッド$ タイプの超低消費電力、単一電源動作、レール to レール入出力(RRIO) 計装アンプ双通道/四通道微功率、单电源、轨到轨输入/输出(RRIO)仪表放大器

Evaluation Board(s):
ISL2827xINEVAL1Z Evaluation Board User's Guide ISL28470EVAL1Z Evaluation Board User's Guide

Technical Homepage:
Amplifiers/Buffers Precision Analog Homepage

Parametric Data


BW (MHz)		.24

SR (V/μs)		.5

V_S (min) (V)		2.4

V_S (max) (V)		5.5

I_S (per amp) (mA)		.083

Noise V_N (nV/√Hz)		60

I_BIAS (μA)		.0003

V_OS (max) (mV)		.15

# of Devices/ Channels		4

I_OUT (mA)		29

V_OUT (V)		4.99

Rail-to-Rail Input		Y

Rail-to-Rail Output		Y

PSRR (dB)		110

CMRR (dB)		110

Thermal Shutdown		N

Gain A_V (min)		100

Enable		Y

Application Block Diagrams

Applications

Battery or Solar-Powered Systems
Strain Gauge
Sensor Signal Conditioning
Medical Devices
Industrial Instrumentations

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