MAX4198_04 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – Micropower, Single-Supply, Rail-to-Rail Precision Differential Amplifiers

19-1445; Rev 1; 6/04
Micropower, Single-Supply, Rail-to-Rail
Precision Differential Amplifiers
General Description
The MAX4198/MAX4199 low-power, rail-to-rail differential
amplifiers are ideal for single-supply applications that
benefit from a low 0.01% gain error. The MAX4198 is fac-
tory trimmed to a fixed gain of +1V/V, and the MAX4199
is trimmed to a fixed gain of +10V/V. Capable of operat-
ing from a single +2.7V to +7.5V supply or from dual
±1.35V to ±3.75V supplies, they consume only 42µA
while achieving -3dB bandwidths of 175kHz (MAX4198)
and 45kHz (MAX4199). These amplifiers feature a shut-
down mode that reduces the supply current to 6.5µA.
The MAX4198/MAX4199 can drive 5kΩ loads to within
100mV from each rail. The standard differential amplifi-
er configurations provide common-mode rejection of
90dB for the MAX4198 and 110dB for the MAX4199.
The input common-mode voltage range for the
MAX4198 extends 100mV Beyond-the-Rails™.
The MAX4198/MAX4199 are offered in a space-saving
8-pin µMAX package. For complete micropower, rail-to-
rail instrumentation amplifiers, see the MAX4194–
MAX4197 data sheet.
Applications
Instrumentation Amplifier Building Block
Differential Voltage Amplifiers
Data-Acquisition Systems
Portable/Battery-Powered Equipment
Transducer Interface
Current-Sense Amplifiers
Functional Diagram
IN- ²
IN+ ³
25kΩ
MAX4198
MAX4199
25kΩ
( ) ARE FOR MAX4199 ONLY.
7 ^VCC
25kΩ (250kΩ)
25kΩ (250kΩ)
4 V_EE
5 _FB
6 _OUT
1 _REF
Features
♦ Low 0.01% Gain Error
♦ High Common-Mode Rejection: 110dB (MAX4199)
♦ 10µV Input Offset Voltage (MAX4199)
30µV Input Offset Voltage (MAX4198)
♦ +2.7V to +7.5V Single-Supply Operation
♦ 42µA Supply Current
♦ 175kHz (MAX4198) and 45kHz (MAX4199)
-3dB Bandwidth
♦ 6.5µA Shutdown Current
♦ Rail-to-Rail Outputs Drive 5kΩ Loads
♦ Input Voltage Range Extends 100mV Beyond-the-
Rails (MAX4198)
♦ Available in Space-Saving 8-Pin µMAX Package
Ordering Information
PART
MAX4198EUA
MAX4198ESA
MAX4199EUA
MAX4199ESA
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
8 µMAX
8 SO
8 µMAX
8 SO
GAIN
(V/V)
1
1
10
10
Pin Configuration
TOP VIEW
REF 1
IN- 2
IN+ 3
V_EE 4
MAX4198
MAX4199
8 SHDN
7 V_CC
6 OUT
5 FB
µMAX/SO
Beyond-the-Rails is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.