MAX4198-MAX4199 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – Micropower, Single-Supply, Rail-to-Rail Precision Differential Amplifiers

19-1445; Rev 0; 4/99
Micropower, Single-Supply, Rail-to-Rail
Precision Differential Amplifiers
General Description
The MAX4198/MAX4199 low-power, Rail-to-Rail^® differ-
ential amplifiers are ideal for single-supply applications
that benefit from a low 0.01% gain error. The MAX4198
is factory trimmed to a fixed gain of +1V/V, and the
MAX4199 is trimmed to a fixed gain of +10V/V. Capable
of operating 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 shutdown mode that reduces the supply cur-
rent 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
25k
MAX4198
MAX4199
25k
IN+ ³
( ) ARE FOR MAX4199 ONLY.
7 ^VCC
25k (250k)
25k (250k)
4 V_EE
5 _FB
6 _OUT
1 _REF
Features
o Low 0.01% Gain Error
o High Common-Mode Rejection: 110dB (MAX4199)
o 10µV Input Offset Voltage (MAX4199)
30µV Input Offset Voltage (MAX4198)
o +2.7V to +7.5V Single-Supply Operation
o 42µA Supply Current
o 175kHz (MAX4198) and 45kHz (MAX4199)
-3dB Bandwidth
o 6.5µA Shutdown Current
o Rail-to-Rail Outputs Drive 5kΩ Loads
o Input Voltage Range Extends 100mV Beyond-the-
Rails (MAX4198)
o Available in Space-Saving 8-Pin µMAX Package
Ordering Information
PART
TEMP. RANGE
MAX4198EUA
MAX4198ESA
MAX4199EUA
MAX4199ESA
-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
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Beyond-the-Rails is a trademark of Maxim Integrated Products.
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