快速浏览 - MAX4194, MAX4195, MAX4196, MAX4197 微功耗、单电源、满摆幅、精密仪表放大器

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概述

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The MAX4194 is a variable-gain precision instrumentation amplifier that combines Rail-to-Rail; single-supply operation, outstanding precision specifications, and a high gain bandwidth. This amplifier is also offered in three fixed-gain versions: the MAX4195 (G = +1V/V), the MAX4196 (G = +10V/V), and the MAX4197 (G = +100V/V). The fixed-gain instrumentation amplifiers feature a shutdown function that reduces the quiescent current to 8µA. A traditional three operational amplifier configuration is used to achieve maximum DC precision.

The MAX4194–MAX4197 have rail-to-rail outputs and inputs that can swing to 200mV below the negative rail and to within 1.1V of the positive rail. All parts draw only 93µA and operate from a single +2.7V to +7.5V supply or from dual ±1.35V to ±3.75V supplies. These amplifiers are offered in 8-pin SO packages and are specified for the extended temperature range (-40°C to +85°C).

See the MAX4198/MAX4199 data sheet for single-supply, precision differential amplifiers.

关键特性

应用/使用

+2.7V Single-Supply Operation
Low Power Consumption
- 93µA Supply Current
- 8µA Shutdown Current
- (MAX4195/MAX4196/MAX4197)
High Common-Mode Rejection: 115dB (G = +10V/V)
Input Common-Mode Range Extends 200mV Below GND
Low 50µV Input Offset Voltage (G > +100V/V)
Low ±0.01% Gain Error (G = +1V/V)
250kHz -3dB Bandwidth (G = +1V/V, MAX4194)
Rail-to-Rail Outputs

	4mA至20mA环变送器
	电池供电/便携式设备
	桥式放大器
	数据采集系统
	医疗装置
	热电偶放大器
	变送器接口

Key Specifications: Differential/Instrumentation Amplifiers

Part Number

Architecture

Amps Per Pkg.

Input CMVR to Neg. Rail

Rail to Rail

Gain (V/V)

Min. Total Supply (V)

Max. Total Supply (V)

Typ. Supply Current per Amp. (mA)

Max. Supply Current per Amp. (mA)

Max. V_OS (µV)

Typ. CMRR @ DC (dB)

Typ PSRR @ DC (dB)

Max. Input I_BIAS (nA)

Typ. Unity Gain BW (MHz)

Input CMVR (V)

Price^**

MAX4194

Classic 3 Op. Amp.

Output Only

1 to 10000

2.7

7.5

0.093

0.11

450

115

120

0.25

V_EE+0.2 to V_CC-1.1

$1.69 @ 1k

MAX4195

0.22

V_EE-0.2 to V_CC-1.1

$1.69 @ 1k

MAX4196

115

0.34

V_EE+0.2 to V_CC-1.1

$1.69 @ 1k

MAX4197

100

115

0.003

V_EE+0.2 to V_CC-1.1

$1.69 @ 1k

See All Differential/Instrumentation Amplifiers (17)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.