Rainbow Electronics MAX4198_MAX4199 - Manual

MAX4198/MAX4199
Micropower, Single-Supply, Rail-to-Rail
Precision Differential Amplifiers
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
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 5k
Ω
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
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 5k
Ω
Loads
♦ Input Voltage Range Extends 100mV Beyond-the-
Rails (MAX4198)
♦ Available in Space-Saving 8-Pin µMAX Package
OUT
FB V EE
1
2
8
7
SHDN
V CC IN-
IN+
REF
µ MAX/SO
TOP VIEW
3
4
6
5
MAX4198
MAX4199
19-1445; Rev 0; 4/99
PART
MAX4198 EUA
MAX4198ESA -40°C to +85°C
-40°C to +85°C
TEMP. RANGE
PIN-
PACKAGE
8 µMAX
8 SO
Pin Configuration
Ordering Information
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Beyond-the-Rails is a trademark of Maxim Integrated Products.
GAIN
(V/V)
1
1
MAX4199 EUA
MAX4199ESA
10
-40°C to +85°C
-40°C to +85°C 8 µMAX
8 SO 10
MAX4198
MAX4199
V CC
25k (250k) 25k
25k (250k) 25k
7
V EE
( ) ARE FOR MAX4199 ONLY.
5 FB
IN-
IN+
2
3
OUT
REF
6
1
4
Functional Diagram