MAX4256 Maxim, MAX4256 Datasheet - Page 9

• Manufacturer Part Number: MAX4256
• Description: The MAX4249–MAX4257 low-noise, low-distortion operational amplifiers offer rail-to-rail outputs and single-supply operation down to 2
• Manufacturer: Maxim

The MAX4249–MAX4257 single-supply operational
amplifiers feature ultra-low noise and distortion while
consuming very little power. Their low distortion and low
noise make them ideal for use as preamplifiers in wide
dynamic-range applications, such as 16-bit analog-to-
digital converters (see Typical Operating Circuit ). Their
high-input impedance and low noise are also useful for
signal conditioning of high-impedance sources, such
as piezoelectric transducers.
These devices have true rail-to-rail output operation,
drive loads as low as 1kΩ while maintaining DC accura-
M A X4 2 5 0 /
M A X4 2 5 5
SOT23
5-PIN
—
—
—
1
2
3
4
5
SO/µMAX
M A X4 2 5 1 /
M A X4 2 5 6
8-PIN
1, 5
—
6
4
3
2
7
8
_______________________________________________________________________________________
Detailed Description
SO/µMAX
M A X4 2 5 2 /
M A X4 2 5 7
8-PIN
1, 7
3, 5
2, 6
—
—
—
Low-Distortion, Rail-to-Rail Op Amps
4
8
M A X4 2 5 2
8-BUMP
C1, C3
A1, A3
B1, B3
PIN/BUMP
UCSP
UCSP, Single-Supply, Low-Noise,
C2
A2
B2
—
—
10-BUMP
A1, C1
A3, C3
A2, C2
A4, C4
B2, B3
UCSP
B4
B1
—
M A X4 2 4 9 /
M A X4 2 5 3
10-PIN
µMAX
1, 9
3, 7
2, 8
5, 6
10
—
—
4
cy, and can drive capacitive loads up to 400pF without
oscillation. The input common-mode voltage range
extends from V
rail. The push-pull output stage maintains excellent DC
characteristics, while delivering up to ±5mA of current.
The MAX4250–4254 are unity-gain stable, whereas, the
MAX4249/MAX4255/MAX4256/MAX4257 have a higher
slew rate and are stable for gains ≥ 10V/V. The
MAX4249/MAX4251/MAX4253/MAX4256 feature a low-
power shutdown mode, which reduces the supply cur-
rent to 0.5µA and disables the outputs.
The MAX4250AAUK is specified for operation over the
automotive (-40°C to +125°C) temperature range.
1 4 - PIN
1, 13
3, 11
2, 12
8, 10
5, 7,
6, 9
SO
14
—
4
M A X4 2 5 4
3, 5, 10,
14-PIN
1, 7, 8,
2, 6, 9,
DD
SO
14
11
12
13
—
—
—
4
- 1.1V to 200mV beyond the negative
Pin/Bump Description
OUT, OUTA,
IN B+ , IN C + ,
INC-, IND-
IN + , IN A+ ,
IN-, INA-,
SHDNA,
SHDNB
OUTB,
OUTC,
SHDN,
NAME
OUTD
IN D +
INB-,
N.C.
V
V
—
DD
SS
Amplifier Output
Negative Supply.
Connect to
ground for single-
supply operation
Noninverting
Amplifier Input
Inverting
Amplifier Input
Positive Supply
Shutdown Input,
Connect to V
or leave
unconnected for
normal operation
(amplifier(s)
enabled).
No Connection.
Not internally
connected.
Not populated
with solder
sphere
FUNCTION
DD
9