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MAX4198EUA

P1-P3P4-P6P7-P9P10-P12
MAX4198/MAX4199
Micropower, Single-Supply, Rail-to-Rail
Precision Differential Amplifiers
_______________________________________________________________________________________ 7
10k
10
11k10k10010 100k
VOLTAGE-NOISE DENSITY
vs. FREQUENCY
100
1k
MAX4198toc10
FREQUENCY (Hz)
VOLTAGE-NOISE DENSITY (nV/√Hz)
MAX4198
MAX4199
1.000
0
100 1k 10k
TOTAL HARMONIC DISTORTION
VOLTAGE NOISE vs. FREQUENCY
0.010
0.001
0.100
MAX4198toc11
FREQUENCY (Hz)
THD + VOLTAGE NOISE (%)
MAX4199
MAX4198
50
µ
s/div
SMALL-SIGNAL PULSE RESPONSE
INPUT
50mV/div
OUTPUT
50mV/div
MAX4198toc12
50
µ
s/div
MAX4199
SMALL-SIGNAL PULSE RESPONSE
INPUT
5mV/div
OUTPUT
50mV/div
MAX4198toc13
50
µ
s/div
MAX4198
LARGE-SIGNAL PULSE RESPONSE
INPUT
500mV/div
OUTPUT
500mV/div
MAX4198toc14
50
µ
s/div
MAX4199
LARGE-SIGNAL PULSE RESPONSE
INPUT
50mV/div
OUTPUT
500mV/div
MAX4198toc15
Typical Operating Characteristics (continued)
(V
CC
= +5V, V
EE
= 0V, R
L
= 25kΩ to V
CC
/ 2, V
SHDN
= V
CC
- 1.5V, small-signal V
OUT
= 100mV
P-P
, large-signal V
OUT
= 1V
P-P
,
T
A
= +25°C, unless otherwise noted.)
50µs/div
MAX4198
SMALL-SIGNAL PULSE RESPONSE
WITH CAPACITIVE LOAD
INPUT
50mV/div
OUTPUT
50mV/div
MAX4198toc16
C
L
= 690pF
50µs/div
MAX4198
SMALL-SIGNAL PULSE RESPONSE
WITH EXCESSIVE CAPACITIVE LOAD
INPUT
50mV/div
OUTPUT
50mV/div
MAX4198toc17
C
L
= 1060pF
R
ISO
= 0
Ω
50µs/div
MAX4198
SMALL-SIGNAL PULSE RESPONSE WITH
EXCESSIVE CAPACITIVE LOAD
AND ISOLATION RESISTOR
INPUT
50mV/div
OUTPUT
50mV/div
MAX4198toc18
C
L
= 1060pF
R
ISO
= 50
Ω
MAX4198/MAX4199
Micropower, Single-Supply, Rail-to-Rail
Precision Differential Amplifiers
8 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
CC
= +5V, V
EE
= 0V, R
L
= 25kΩ to V
CC
/ 2, V
SHDN
= V
CC
- 1.5V, small-signal V
OUT
= 100mV
P-P
, large-signal V
OUT
= 1V
P-P
,
T
A
= +25°C, unless otherwise noted.)
50
µ
s/div
MAX4199
SMALL-SIGNAL PULSE RESPONSE WITH
EXCESSIVE CAPACITIVE LOAD
INPUT
5mV/div
OUTPUT
50mV/div
MAX4198toc20
C
L
= 760pF
R
ISO
= 0
Ω
50
µ
s/div
MAX4199
SMALL-SIGNAL PULSE RESPONSE WITH
EXCESSIVE CAPACITIVE LOAD
AND ISOLATION RESISTOR
INPUT
5mV/div
OUTPUT
50mV/div
MAX4198toc21
C
L
= 760pF
R
ISO
= 75
Ω
0
60
40
20
80
120
100
-300-240 -120-180 -60 0 12060 180 240 300
MAX4199 HISTOGRAM
(V
OS
BASED ON 280 UNITS)
MAX4198toc25
V
OS
(µV)
COUNT
0
30
40
20
10
70
60
50
100
90
80
-0.08 -0.06 -0.04 -0.02 0 0.02 0.04 0.06 0.08
MAX4198 HISTOGRAM
(GAIN ACCURACY BASED ON 200 UNITS)
MAX4198toc26
GAIN ERROR (%)
COUNT
0
40
20
100
80
60
160
140
120
-0.24 -0.18 -0.12-0.06 0 -0.06 0.12 0.18 0.24
MAX4199 HISTOGRAM
(GAIN ACCURACY BASED ON 280 UNITS)
MAX4198toc27
GAIN ERROR (%)
COUNT
10
µ
s/div
MAX4198
TIME EXITING SHUTDOWN
INPUT
(SHDN PIN)
500mV/div
OUTPUT
500mV/div
MAX4198toc22
10
µ
s/div
MAX4199
TIME EXITING SHUTDOWN
INPUT
(SHDN PIN)
500mV/div
OUTPUT
500mV/div
MAX4198toc23
0
30
20
10
40
60
50
-300-240 -120-180 -60 0 12060 180 240 300
MAX4198 HISTOGRAM
(V
OS
BASED ON 200 UNITS)
MAX4198toc24
V
OS
(
µ
V)
COUNT
_______________Detailed Description
The MAX4198/MAX4199 are precision low-power differ-
ential amplifiers with factory-trimmed internal gain-set-
ting resistors. The MAX4198 is trimmed to a gain of
+1V/V and the MAX4199 is trimmed to a gain of +10V/V.
Input Stage
The Functional Diagram shows the internal structure of
the MAX4198/MAX4199. Although the resistors are pre-
cision matched, their absolute value varies by ±25%.
The typical input impedance for the MAX4198 is 50kΩ
for the noninverting input and 25kΩ for the inverting
input. The typical input impedance for the MAX4199 is
275kΩ for the noninverting input and 25kΩ for the
inverting input.
The common-mode inputs of the internal op amp can
range from V
EE
to (V
CC
- 1.1V). Although the inputs to
the internal op amp are not rail-to-rail, the internal resis-
tors form a voltage divider that extends the input com-
mon-mode range beyond-the-rails for the MAX4198.
The overall input range of the MAX4198 extends 100mV
beyond-the-rails without adversely affecting common-
mode rejection or undergoing phase reversal (V
CC
=
5V). The MAX4199 input common-mode range extends
from 100mV below the negative rail to (V
CC
- 1V) (see
the Input Common-Mode Voltage Range vs. Supply
Voltage graph in the Typical Operating Characteristics).
MAX4198/MAX4199
Micropower, Single-Supply, Rail-to-Rail
Precision Differential Amplifiers
_______________________________________________________________________________________ 9
-0.5
1.5
0.5
4.5
3.5
2.5
7.5
6.5
5.5
243 5678
MAX4199
INPUT COMMON-MODE RANGE vs.
SUPPLY VOLTAGE
MAX4198toc28
SUPPLY VOLTAGE (V)
INPUT COMMON-MODE VOLTAGE (V)
V
REF
= V
CC
/2
Typical Operating Characteristics (continued)
(V
CC
= +5V, V
EE
= 0V, R
L
= 25kΩ to V
CC
/ 2, V
SHDN
= V
CC
- 1.5V, small-signal V
OUT
= 100mV
P-P
, large-signal V
OUT
= 1V
P-P
,
T
A
= +25°C, unless otherwise noted.)
-0.5
1.5
0.5
4.5
3.5
2.5
7.5
6.5
5.5
8.5
243 5678
MAX4198
INPUT COMMON-MODE RANGE vs.
SUPPLY VOLTAGE
MAX4198toc29
SUPPLY VOLTAGE (V)
INPUT COMMON-MODE VOLTAGE (V)
V
REF
= V
CC
/2
Pin Description
Feedback Resistor. Can be used as a sense input.FB5
Amplifier OutputOUT6
Positive Supply VoltageV
CC
7
Shutdown Control. Shutdown threshold is referenced to V
CC
. When pulled 2.5V below V
CC
, part
is in shutdown.
SHDN
8
Negative Supply VoltageV
EE
4
Noninverting InputIN+3
PIN
Inverting InputIN-2
Reference Voltage Input. Offsets output voltage.REF1
FUNCTIONNAME
P1-P3P4-P6P7-P9P10-P12

MAX4198EUA

Mfr. #:
Buy MAX4198EUA
Manufacturer:
Maxim Integrated
Description:
Differential Amplifiers uPower Single-Supply Rail-Rail Precision
Lifecycle:
New from this manufacturer.
Delivery:
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