19-1380; Rev 3; 10/02
Single/Dual/Quad, Low-Cost, UCSP/SOT23,
Low-Power, Rail-to-Rail I/O Op Amps
General Description
The MAX4322/MAX4323/MAX4326/MAX4327/MAX4329
family of operational amplifiers combines wide bandwidth
and excellent DC accuracy with Rail-to-Rail
®
operation at
the inputs and outputs. These devices consume only
650µA per amplifier and operate from either a single sup-
ply (2.4V to 6.5V) or dual supplies (±1.2V to ±3.25V). These
unity-gain-stable amplifiers are capable of driving 250Ω
loads and have a 5MHz gain-bandwidth product. The
MAX4323 and MAX4327 feature a low-power shutdown
mode that reduces supply current to 25µA and places the
outputs in a high-impedance state.
With their rail-to-rail input common-mode range and
output swing, these amplifiers are ideal for low-voltage,
single-supply operation. In addition, low offset voltage
and high speed make them the ideal signal-condition-
ing stages for precision, low-voltage data-acquisition
systems.
The MAX4323 is offered in a small 6-bump chip-scale
package (UCSP™). The MAX4322/MAX4323 are also
available in space-saving SOT23 packages.
PART
____________________________Features
o
6-Bump UCSP Package (MAX4323)
o
2.4V to 6.5V Single-Supply Operation
o
Rail-to-Rail Input Common-Mode Voltage Range
o
Rail-to-Rail Output Voltage Swing
o
5MHz Gain-Bandwidth Product
o
650µA Quiescent Current per Amplifier
o
700µV Offset Voltage
o
No Phase Reversal for Overdriven Inputs
o
Drive 250Ω Loads
o
25µA Shutdown Mode (MAX4323/MAX4327)
o
Unity-Gain Stable for Capacitive Loads
Up to 500pF
MAX4322/MAX4323/MAX4326/MAX4327/MAX4329
Ordering Information
TEMP
RANGE
-40 C to +85 C
-40 C to +85 C
o
o
o
o
Selector Guide
PART
BW
(MHz)
5
5
5
5
5
NO. OF
AMPS
1
1
2
2
4
PIN/BUMP-
PACKAGE
5 SOT23,
8 µMAX/SO
6 SOT23/UCSP,
8 µMAX/SO
8 µMAX/SO
10 µMAX, 14 SO
14 SO
SHUTDOWN
PIN/BUMP-
PACKAGE
5 SOT23-5
8 µMAX
8 SO
TOP
MARK
ACGE
—
—
MAX4322EUK-T
-40
o
C to +85
o
C
MAX4322EUA
MAX4322ESA
Ordering Information continued at end of data sheet.
—
MAX4322
MAX4323
MAX4326
MAX4327
MAX4329
Pin Configurations
Yes
—
Yes
—
1
TOP VIEW
(BUMPS ON BOTTOM)
B
A
V
EE
IN+
________________________Applications
Battery-Powered
Instruments
RSSI Systems
PA Biasing
Low-Power, Low-Voltage
Applications
Data-Acquisition
Systems
Signal Conditioning
Portable Equipment
2
IN-
MAX4323
OUT
3
SHDN
V
CC
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
UCSP is a trademark of Maxim Integrated Products, Inc.
UCSP
Pin Configurations continued at end of data sheet.
1
________________________________________________________________
Maxim Integrated Products
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.
Single/Dual/Quad, Low-Cost, UCSP/SOT23,
Low-Power, Rail-to-Rail I/O Op Amps
MAX4322/MAX4323/MAX4326/MAX4327/MAX4329
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
CC
- V
EE
) ...................................................7.5V
All Other Pins ...................................(V
CC
+ 0.3V) to (V
EE
- 0.3V)
Output Short-Circuit Duration.....................................Continuous
(Short to Either Supply)
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
6-Bump UCSP (derate 3.9mW/°C above +70°C).........308mW
6-Pin SOT23 (derate 7.1mW/°C Above + 70°C) ..........571mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
8-Pin µMAX (derate 4.10mW/°C above +70°C) ...........330mW
10-Pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW
14-Pin SO (derate 8.00mW/°C above +70°C)..............640mW
Operating Temperature Range
MAX432_E__ ...................................................-40°C to +85°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Bump Reflow Temperature ..............................................+235°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS—T
A
= +25°C
(V
CC
= 5.0V, V
EE
= 0V, V
CM
= 0V, V
OUT
= V
CC
/2,
SHDN
= V
CC,
R
L
connected to V
CC
/2, unless otherwise noted.)
PARAMETER
Input Offset Voltage
Input Bias Current
Input Offset Current
Differential Input Resistance
Common-Mode Input Voltage
Range
SYMBOL
V
OS
I
B
I
OS
R
IN
CMVR
CONDITIONS
V
CM
= V
EE
or V
CC
V
CM
= V
EE
or V
CC
V
CM
= V
EE
or V
CC
-1.5V < V
DIFF
< +1.5V
Inferred from CMRR test
MAX432_ESA/
MAX4327ESD
All other packages
Power-Supply Rejection Ratio
Output Resistance
Large-Signal Voltage Gain
PSRR
R
OUT
A
V
V
CC
= 2.4V to 6.5V
A
V
= +1V/V
V
OUT
= 0.25V to 4.75V, R
L
= 100kΩ
V
OUT
= 0.4V to 4.6V, R
L
= 250Ω
MAX4322/
MAX4323
Output Voltage Swing
V
O
MAX4326/
MAX4327/
MAX4329
Output Short-Circuit Current
SHDN
Logic Threshold
SHDN
Input Current
I
SC
V
IL
V
IH
MAX4323/MAX4327
MAX4323/MAX4327
Low
High
2.0
±1
±4
R
L
= 100kΩ
R
L
= 250Ω
R
L
= 100kΩ
R
L
= 250Ω
V
CC
- V
OH
V
OL
- V
EE
V
CC
- V
OH
V
OL
- V
EE
V
CC
- V
OH
V
OL
- V
EE
V
CC
- V
OH
V
OL
- V
EE
70
V
EE
62
60
66
94
dB
91
100
0.1
106
86
12
20
200
100
15
25
220
120
50
0.8
350
250
mA
V
µA
300
200
mV
dB
Ω
dB
MAX432_ESA/
MAX4327ESD
All other packages
MIN
TYP
±0.7
±1.2
±50
±1
500
V
CC
MAX
±2.0
±2.50
±150
±12
nA
nA
kΩ
V
UNITS
mV
Common-Mode Rejection Ratio
CMRR
V
EE
≤
V
CM
≤
V
CC
2
_______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, UCSP/SOT23,
Low-Power, Rail-to-Rail I/O Op Amps
DC ELECTRICAL CHARACTERISTICS—T
A
= +25°C (continued)
(V
CC
= 5V, V
EE
= 0V, V
CM
= 0V, V
OUT
= V
CC
/2,
SHDN
= V
CC,
R
L
connected to V
CC
/2, unless otherwise noted.)
PARAMETER
Operating Supply Voltage Range
Supply Current per Amplifier
Shutdown Supply Current
per Amplifier
SYMBOL
V
CC
I
CC
I
SHDN
CONDITIONS
Inferred from PSRR test
V
CM
= V
OUT
= V
CC
/2
V
SHDN
≤
0.8V,
MAX4323/MAX4327
V
CC
= 2.4V
V
CC
= 5V
V
CC
= 2.4V
V
CC
= 5V
MIN
2.4
650
725
25
40
60
1100
TYP
MAX
6.5
UNITS
V
µA
µA
MAX4322/MAX4323/MAX4326/MAX4327/MAX4329
DC ELECTRICAL CHARACTERISTICS—T
A
= -40°C to +85°C
(V
CC
= 5V, V
EE
= 0V, V
CM
= 0V, V
OUT
= V
CC
/2,
SHDN
= V
CC,
R
L
connected to V
CC
/2, unless otherwise noted.) (Note 1)
PARAMETER
Input Offset Voltage
Input Offset Voltage Tempco
Input Bias Current
Input Offset Current
Common-Mode Input
Voltage Range
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
Large-Signal Voltage Gain
SYMBOL
V
OS
TCV
OS
I
B
I
OS
CMVR
V
CM
= V
EE
or V
CC
V
CM
= V
EE
or V
CC
Inferred from CMRR test
MAX432_ESA/
MAX4327ESD
All other packages
PSRR
A
V
V
CC
= 2.4V to 6.5V
V
OUT
= 0.4V to 4.6V, R
L
= 250Ω
MAX4322/
MAX4323
Output Voltage Swing
V
O
MAX4326/
MAX4327/
MAX4329
R
L
= 250Ω
V
CC
- V
OH
V
OL
- V
EE
V
CC
- V
OH
R
L
= 250Ω
V
OL
- V
EE
Low
High
2.0
±5
2.4
V
CM
= V
OUT
= V
CC
/2
V
SHDN
≤
0.8V, MAX4323/MAX4327
6.5
1200
70
300
0.8
V
µA
V
µA
µA
V
EE
59
54
62
66
350
250
400
mV
dB
dB
CONDITIONS
V
CM
= V
EE
or V
CC
MAX432_ESA/
MAX4327ESD
All other packages
±2
±180
±20
V
CC
MIN
TYP
MAX
±3.0
±6.0
µV/°C
nA
nA
V
UNITS
mV
CMRR
V
EE
≤
V
CM
≤
V
CC
dB
SHDN
Logic Threshold
SHDN
Input Current
Operating Supply Voltage Range
Supply Current per Amplifier
Shutdown Supply Current
per Amplifier
V
IL
V
IH
V
CC
I
CC
I
SHDN
MAX4323/MAX4327
MAX4323/MAX4327
_______________________________________________________________________________________
3
Single/Dual/Quad, Low-Cost, UCSP/SOT23,
Low-Power, Rail-to-Rail I/O Op Amps
MAX4322/MAX4323/MAX4326/MAX4327/MAX4329
AC ELECTRICAL CHARACTERISTICS
(V
CC
= 5V, V
EE
= 0V, V
CM
= V
OUT
= V
CC
/2,
SHDN
= V
CC,
T
A
= +25°C, unless otherwise noted.)
PARAMETER
Gain-Bandwidth Product
Phase Margin
Gain Margin
Total Harmonic Distortion
Slew Rate
Settling Time to 0.01%
Turn-On Time
SHDN
Delay
Input Capacitance
Input Noise-Voltage Density
Input Noise-Current Density
Amp-Amp Isolation
Capacitive-Load Stability
C
L
A
V
= +1V/V
C
IN
e
n
i
n
f = 1kHz
f = 1kHz
SYMBOL
GBWP
φ
M
G
M
THD
SR
t
S
t
ON
A
V
= +1V/V, V
OUT
= 2V step
V
CC
= 0 to 3V step
MAX4323/MAX4327
Enable
Disable
f = 10kHz, V
OUT
= 2V
P-P
, A
V
= +1V/V
CONDITIONS
MIN
TYP
5
64
12
0.003
2
2.0
1
1
0.2
3
22
0.4
135
250
MAX
UNITS
MHz
Degrees
dB
%
V/µs
µs
µs
µs
pF
nV/√Hz
pA/√Hz
dB
pF
Note 1:
All devices are 100% tested at T
A
= +25°C. All temperature limits are guaranteed by design.
4
_______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, UCSP/SOT23,
Low-Power, Rail-to-Rail I/O Op Amps
MAX4322/MAX4323/MAX4326/MAX4327/MAX4329
__________________________________________Typical Operating Characteristics
(V
CC
= 5V, V
EE
= 0V, V
CM
= V
CC
/2,
SHDN
= V
CC,
T
A
= +25°C, unless otherwise noted.)
GAIN AND PHASE vs. FREQUENCY
(WITH C
LOAD
)
180
144
40
GAIN
GAIN (dB)
20
108
PHASE (DEGREES)
72
36
0
0
PHASE
-36
-72
-20
A
V
= +1000
NO LOAD
1k
10k
100k
1M
10M
-108
-144
-180
100M
-40
100
-20
A
V
= +1000
R
L
=
∞
C
L
= 500pF
1k
10k
100k
1M
10M
GAIN (dB)
40
GAIN
60
GAIN AND PHASE vs. FREQUENCY
60
MAX4322/26/29-01
MAX4322/26/29-02
144
108
PHASE (DEGREES)
72
36
0
0
PHASE
-36
-72
-108
-144
-180
100M
0
-20
PSRR (dB)
-40
-60
-80
-100
10
A
V
= +1
20
-40
100
100
1k
10k
100k
1M
10M
100M
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX4326/MAX4327/MAX4329
CHANNEL SEPARATION vs. FREQUENCY
MAX4322/26/29-04
OUTPUT IMPEDANCE
vs. FREQUENCY
SHUTDOWN SUPPLY CURRENT (µA)
A
V
= +1
OUTPUT IMPEDANCE (Ω)
10
MAX4322/26/29-05
MAX4323/MAX4327
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX4323-06
130
120
CHANNEL SEPARATION (dB)
110
100
90
80
70
60
50
100
1k
10k
100k
FREQUENCY (Hz)
1M
100
60
50
40
30
20
10
V
SHDN
= 0V
0
V
CC
= 2.7V
V
CC
= 6.5V
1
0.1
0.01
10M
100
1k
10k
100k
1M
10M
100M
FREQUENCY (Hz)
-40 -25 -10
5
20
35
50
65
80
95
TEMPERATURE (°C)
SUPPLY CURRENT PER AMPLIFIER
vs. TEMPERATURE
MAX4322/26/29-07
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
MAX4322/26/29-08
INPUT BIAS CURRENT
vs. COMMON-MODE VOLTAGE
40
INPUT BIAS CURRENT (nA)
30
20
10
0
-10
-20
-30
-40
-50
V
CC
= 2.7V
V
CC
= 6.5V
MAX4322/26/29-09
900
850
SUPPLY CURRENT (µA)
800
750
700
650
600
550
500
-40 -25 -10
5
20
35
50
65
80
V
CC
= 2.7V
V
CC
= 6.5V
3.00
2.25
1.50
VOLTAGE (mV)
0.75
0
-0.75
-1.50
-2.25
-3.00
SO PACKAGE
SOT23-5/6
PACKAGE
50
95
-40 -25 -10
5
20
35
50
65
80
95
0
1
2
3
4
5
6
TEMPERATURE (°C)
TEMPERATURE (°C)
COMMON-MODE VOLTAGE (V)
_______________________________________________________________________________________
MAX4322/26/29-03
180
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
5
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