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MAX4194, MAX4195, MAX4196, MAX4197
Micropower, Single-Supply, Rail-to-Rail, Precision Instrumentation Amplifiers
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Status
Active: In Production.
Description
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.
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Data Sheet
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Key Features
- +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
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Applications/Uses
- 4mA to 20mA Loop Transmitters
- Battery-Powered/Portable Equipment
- Bridge Amplifier
- Data Acquisition Systems
- Medical Equipment
- Thermocouple Amplifiers
- Transducer Interface
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Key Specifications:
| Instrumentation/Difference Amplifiers |
| Part Number |
Architecture |
Amps. |
VCMVR |
Rail to Rail |
AV
(V/V) |
VSUPPLY (Total)
(V) |
VSUPPLY (Total)
(V) |
ICC per Amp.
(mA) |
ICC per Amp.
(mA) |
VOS
(µV) |
CMRR @DC
(dB) |
PSRR @DC
(dB) |
Input IBIAS
(nA) |
Unity Gain BW
(MHz) |
Slew Rate
(V/µs) |
VCMVR
(V) |
en
(nV/√Hz) |
in
(pA/√Hz) |
Noise Spec'd @ |
Low Pwr. Shutdn |
Oper. Temp.
(°C) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| to Neg. Rail |
min |
max |
typ |
max |
max |
typ |
typ |
max |
typ |
typ |
max w/pins |
See Notes |
| MAX4194 |
Classic 3 Op. Amp. |
1 |
No |
Output Only |
1 to 10000 |
2.7 |
7.5 |
0.093 |
0.11 |
450 |
115 |
120 |
20 |
0.25 |
0.06 |
VEE+0.2 to VCC-1.1 |
72 |
0.1 |
10kHz |
No |
-40 to +85 |
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30.9 |
$1.69 @1k |
| MAX4195 |
1 |
95 |
0.22 |
VEE-0.2 to VCC-1.1 |
72 |
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$1.78 @1k |
| MAX4196 |
10 |
115 |
0.34 |
VEE+0.2 to VCC-1.1 |
31 |
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$1.78 @1k |
| MAX4197 |
100 |
115 |
0.003 |
VEE+0.2 to VCC-1.1 |
8.7 |
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$1.78 @1k |
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See All Instrumentation/Difference Amplifiers (15)
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Pricing 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.
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Diagram
Pin Configurations
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-1468
Rev 1;
2003-10-27
This page last modified: 2009-09-07
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