Datasheet MAX4403AUD, MAX4403ASD, MAX4402ASA, MAX4402AKA-T, MAX4400AXK-T Datasheet (Maxim)

General Description

The MAX4400–MAX4403 low-cost, general-purpose op
amps offer Rail-to-Rail®outputs, draw only 320µA of qui­escent current, and operate from a single +2.5V to +5.5V
supply. For additional power conservation, the MAX4401
offers a low-power shutdown mode that reduces supply
current to 1µA max and puts the amplifier’s outputs in a
high-impedance state. These devices deliver ±1.4mA of
output current and are unity-gain stable with a 1MHz gain­bandwidth product driving capacitive loads up to 400pF.
The MAX4400–MAX4403 are specified to +125°C, making
them suitable for use in a variety of harsh environments,
such as automotive applications.

The MAX4400 single amplifier is available in ultra-small
5-pin SC70 and space-saving 5-pin SOT23 packages.
The single MAX4401 includes the shutdown feature and is
available in a 6-pin SC70. The MAX4402 is a dual amplifier
available in 8-pin SOT23 and SO packages. The
MAX4403 quad amplifier comes packaged in a 14-pin
TSSOP or SO.

Applications

Single-Supply Zero-Crossing Detectors

Instruments and Terminals

Portable Communications

Electronic Ignition Modules

Infrared Receivers

Sensor Signal Detection

Features

♦ Single +2.5V to +5.5V Supply Voltage Range

♦ 320µA Quiescent Current per Amplifier

♦ 1µA max Shutdown Mode (MAX4401)

♦ Available in Space-Saving Packages

5-Pin SC70 (MAX4400)
6-Pin SC70 (MAX4401)
8-Pin SOT23 (MAX4402)

♦ 110dB A

VOL

with 2kΩ Load

♦ 0.015% THD with 2kΩ Load

♦ Rail-to-Rail Output Voltage Swing

♦ 1.4mA of Sink and Source Load Current

♦ Unity-Gain Stable up to C

LOAD

= 400pF

♦ Ground-Sensing Inputs

For free samples and the latest literature, visit www.maxim-ic.com or phone [phone].
For small orders, phone [phone].

MAX4400–MAX4403

Single/Dual/Quad, Low-Cost, Single-Supply,

Rail-to-Rail Op Amps with Shutdown

________________________________________________________________ Maxim Integrated Products 1

IN+

IN-

1

2

3

5

4

OUT

V

SS

VDDIN+

IN-

1

2

3

6

5

4

OUT

SHDN

V

SS

V

DD

MAX4400 MAX4401

SC70-5/SOT23-5 SC70-6

19-1599; Rev 0; 1/00

PART

MAX4400AXK-T

MAX4400AUK-T

MAX4401AXT-T

-40°C to +125°C

-40°C to +125°C

-40°C to +125°C

TEMP. RANGE

PIN-

PACKAGE

5 SC70-5

5 SOT23-5

6 SC70-6

*Future product—contact factory for availability.

Pin Configurations

Ordering Information

Selector Guide

MAX4402AKA-T*

MAX4402ASA*

MAX4403AUD*

-40°C to +125°C

-40°C to +125°C

-40°C to +125°C 8 SOT23-8

8 SO

14 TSSOP

MAX4403ASD* -40°C to +125°C 14 SO

MAX4401 1 Yes

MAX4402 2 No

MAX4403 4 No

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.

Pin Configurations continued at end of data sheet.

No1MAX4400

PART

NO. OF AMPLIFIERS

PER PACKAGE

SHUTDOWN

MODE

TOP

MARK

AAG

ADNP

AAB

AADI

—

—
—

MAX4400–MAX4403

Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD= +5V, VSS= 0, VCM= 0, V

OUT

= VDD/2, RL= ∞ connected to VDD/2, SHDN = VDD(MAX4401 only), TA= +25°C, unless

otherwise noted.)

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.

Power-Supply Voltage (VDDto VSS) .........................-0.3V to +6V

All Other Pins ...................................(VSS- 0.3V) to (VDD+ 0.3V)

Output Short-Circuit Duration

(OUT shorted to VSSor VDD)................................. Continuous

Continuous Power Dissipation (TA= +70°C)

5-Pin SC70 (derate 2.5mW/°C above +70°C)............. 200mW

6-Pin SC70 (derate 2.27mW/°C above +70°C)............181mW

5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW

8-Pin SOT23 (derate 7.52mW/°C above +70°C)..........602mW

8-Pin SO (derate 5.88mW/°C above +70°C)............... 471mW

14-Pin TSSOP (derate 8.33mW/°C above +70°C) ...... 667mW

14-Pin SO (derate 8.33mW/°C above +70°C)............. 667mW

Operating Temperature Range .........................-40°C to +125°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

SHDN = VDDor VSS(Notes 1, 2)

(Note 1)

VDD= 5.0V

(Note 1)

Device in shutdown mode, SHDN = VSS,
V

SS

< V

OUT

< VCC(Note 1)

V

DD

= 2.5V

Sinking

Inferred from PSRR test

Sourcing

Specified as
|VSS- VOL|

2.5V ≤ VDD≤ 5.5V

VSS≤ VCM≤ VDD- 1.4V

Specified as
|V

DD

- VOH|

Inferred from CMRR test

Differential or common mode

SHDN = VSS(Note 1)

(Note 2)

dB

(Note 2)

VSS+ 0.3V ≤
V

OUT

≤ VDD- 0.3V

CONDITIONS

kHz

800

GBWGain-Bandwidth Product

pA

±1 ±100

IIL, I

IH

SHDN Input Current

V

0.7 · V

DD

V

IH

SHDN Logic High

V

0.3 · V

DD

V

IL

SHDN Logic Low

µA

±1.0

I

OUTSHDN

Shutdown Mode Output
Leakage

30

mA

12

Output Short-Circuit Current

30 75

mV

2

V

OL

Output Voltage Low

55 200

mV

3

V

OH

Output Voltage High

90 110

dB

120

A

VOL

Large-Signal Voltage Gain

400 700

RL= 100kΩ

RL= 2kΩ

µA

320

I

DD

V

2.5 5.5

V

DD

Supply Voltage Range

Supply Current per Amplifier

78 100

PSRRPower-Supply Rejection Ratio

dB

68 84

CMRRCommon-Mode Rejection Ratio

V

V

SS

VDD- 1.4

V

CM

Input Common-Mode Voltage
Range

GΩ

1000

R

IN

Input Resistance

µA

0.00002 1

I

SHDN

Supply Current in Shutdown

mV

±0.8 ±4.5

V

OS

Input Offset Voltage

pA

±0.1 ±100

I

B

Input Bias Current

pA

±0.1 ±100

I

OS

Input Offset Current

UNITSMIN TYP MAXSYMBOLPARAMETER

RL= 100kΩ

RL= 2kΩ

RL= 100kΩ

RL= 2kΩ

degrees

70

φ

M

Phase Margin

dB

20

Gain Margin

V/µs

1

SRSlew Rate

MAX4400–MAX4403

Single/Dual/Quad, Low-Cost, Single-Supply,

Rail-to-Rail Op Amps with Shutdown

_______________________________________________________________________________________ 3

Total Harmonic Distortion

ELECTRICAL CHARACTERISTICS (continued)

(VDD= +5V, VSS= 0, VCM= 0, V

OUT

= VDD/2, RL= ∞ connected to VDD/2, SHDN = VDD(MAX4401 only), TA= +25°C, unless

otherwise noted.)

ELECTRICAL CHARACTERISTICS

(VDD= +5V, VSS= 0, VCM= 0, V

OUT

= VDD/2, RL= ∞ connected to VDD/2, TA= -40°C to +125°C, unless otherwise noted.) (Note 3)

Note 1: Shutdown mode is only available in the 6-pin SC70 single op amp (MAX4401).
Note 2: Guaranteed by design.
Note 3: Specifications are 100% tested at T

A

= +25°C (exceptions noted). All temperature limits are guaranteed by design.

RL= 100kΩ

RL= 2kΩ

CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER

V

OUT

= 2V step

(Note 1)

AV= 1V/V

f = 10kHz, V

OUT

=

2Vp-p, AV= 1V/V

f = 10kHz

f = 10kHz

(Note 1)

µs

7

t

S

Settling Time to 0.1%

0.015

%

0.009

THDTotal Harmonic Distortion

pF

2.5

C

IN

Input Capacitance

µs

5

t

ON

Power-On Time

µs

6

t

EN

Enable Delay Time

µs

0.4

t

SHDN

Shutdown Delay Time

pF

400

C

LOAD

Capacitive-Load Stability

fA/√Hz

1

i

n

Input Current Noise Density

nV/√Hz

36e

n

Input Voltage Noise Density

+85°C to +125°C

-40°C to +85°C

±5.0

Device in shutdown
mode, SHDN = V

SS

,

V

SS

< V

OUT

< V

DD

(Note 1)

Inferred from PSRR test

Specified as |VSS- VOL|, RL = 2kΩ

Specified as |VDD- VOH|, RL= 2kΩ

VSS+ 0.3V ≤ V

OUT

≤ VDD- 0.3V, RL= 2kΩ

SHDN = VDDor VSS(Notes 1, 2)

(Note 1)

2.5V ≤ VCC≤ 5.5V

V

SS

≤ VCM≤ VDD- 1.5V

(Note 2)

(Note 2)

(Note 1)

Inferred from CMRR test

CONDITIONS

mV

100

V

OL

Output Voltage Low

mV

250

V

OH

Output Voltage High

dB

85

A

VOL

Large-Signal Voltage Gain

pA

±100

I

IL,IIH

SHDN Input Current

V

0.7 · V

DD

V

IH

SHDN Logic High

V

0.3 · V

DD

V

IL

SHDN Logic Low

mV

±6.5

V

OS

Input Offset Voltage

µA

800

I

DD

V

2.5 5.5

V

DD

Supply Voltage Range

Supply Current per Amplifier

µA

±1.0

I

OUTSHDN

Shutdown Mode Output
Leakage

dB

74

PSRRPower-Supply Rejection Ratio

dB

65

CMRRCommon-Mode Rejection Ratio

µV/°C

±1

TC

VOS

Input Offset Voltage Drift

pA

±100

I

B

Input Bias Current

pA

±100

I

OS

Input Offset Current

V

V

SS

V

DD

- 1.5

V

CM

Input Common-Mode Voltage
Range

UNITSMIN TYP MAXSYMBOLPARAMETER

MAX4400–MAX4403

Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown

4 _______________________________________________________________________________________

Typical Operating Characteristics

(VDD= +5V, VSS= 0, VCM= VDD/2, V

SHDN

= 5V, RL= ∞ connected to VDD/2, TA= +25°C, unless otherwise noted.)

80
60
40
20

0

-20

-40

-60

-80

-100

-120

-140

-160

-180
1 10 1k 10M1M

GAIN AND PHASE

vs. FREQUENCY (NO LOAD)

MAX4400 toc01

FREQUENCY (Hz)

GAIN (dB)/PHASE (deg)

100 10k 100k

A

VCL

= +1000V/V

80
60
40
20

0

-20

-40

-60

-80

-100

-120

-140

-160

-180
1 10 1k 10M1M

GAIN AND PHASE vs. FREQUENCY

(C

L

= 400pF)

MAX4400 toc02

FREQUENCY (Hz)

GAIN (dB)/PHASE (deg)

100 10k 100k

A

VCL

= +1000V/V

10 1k100 10k 100k 1M

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

MAX4400 toc03

FREQUENCY (Hz)

PSRR (dB)

10

-110

-90

-10

-30

-50

-70

FREQUENCY (Hz)

1000

0.001
10 100 1k 10k 100k 1M

OUTPUT IMPEDANCE

vs. FREQUENCY

0.1

MAX4400 toc4

OUTPUT IMPEDANCE (Ω)

10

0.01

1

100

300

350

400

450

500

-40 0 40 80-20 20 60 100 120

SUPPLY CURRENT vs. TEMPERATURE

MAX4400 toc05

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

1

10

100

1k

10k

1M

-40 0 40 80-20 20 60 100 120

MAX4401

SHUTDOWN SUPPLY CURRENT

vs. TEMPERATURE

MAX4400 toc06

TEMPERATURE (°C)

SUPPLY CURRENT (pA)

V

SHDN

= V

SS

0.1

10

1k

1M

-40 0 40 80-20 20 60 100 120

MAX4401

OUTPUT LEAKAGE CURRENT

vs. TEMPERATURE

MAX4400 toc07

TEMPERATURE (°C)

I

LEAK

(pA)

V

SHDN

= V

SS

V

OUT = VDD/2

-1500

-1000

-500

500

0

1000

1500

-40 0 40 80-20 20 60 100 120

INPUT OFFSET VOLTAGE

vs. TEMPERATURE

MAX4400 toc08

TEMPERATURE (°C)

V

OS

(µV)

30

20

10

0

50

40

70

60

-40 0 40 80-20 20 60 100 120

OUTPUT VOLTAGE SWING HIGH

vs. TEMPERATURE

MAX4400 toc09

TEMPERATURE (°C)

V

DD

-V

OH

(mV)

RL = 2kΩ to VDD/2

MAX4400–MAX4403

Single/Dual/Quad, Low-Cost, Single-Supply,

Rail-to-Rail Op Amps with Shutdown

_______________________________________________________________________________________ 5

Typical Operating Characteristics (continued)

(VDD= +5V, VSS= 0, VCM= VDD/2, V

SHDN

= 5V, RL= ∞ connected to VDD/2, TA= +25°C, unless otherwise noted.)

0

10

20

30

40

50

-40 0 40 80-20 20 60 100 120

OUTPUT VOLTAGE SWING LOW

vs. TEMPERATURE

MAX4400 toc10

TEMPERATURE (°C)

V

OL

- V

EE

(mV)

RL = 2kΩ to VDD/2

-100

-90

-80

-70

-60

-40 0 40 80-20 20 60 100 120

COMMON-MODE REJECTION RATIO

vs. TEMPERATURE

MAX4400 toc11

TEMPERATURE (°C)

CMRR (dB)

0

40

80

60

20

100

120

140

0.5 1.5 2.5 3.51.0 2.0 3.0 4.0 4.5

LARGE-SIGNAL GAIN

vs. OUTPUT VOLTAGE

MAX4400 toc12

V

OUT

(V)

GAIN (dB)

RL = 2kΩ

100

115

110

105

120

130

125

140

135

-40 0 40 80-20 20 60 100 120

LARGE-SIGNAL GAIN

vs. TEMPERATURE

MAX4400 toc13

TEMPERATURE (°C)

GAIN (dB)

RL = 2kΩ

1.0

1.5

2.0

2.5

3.0

-40 0 40 80-20 20 60 100 120

MINIMUM OPERATING VOLTAGE

vs. TEMPERATURE

MAX4400 toc14

TEMPERATURE (°C)

V

MIN

(V)

10 1k100 10k 100k

TOTAL HARMONIC DISTORTION

vs. FREQUENCY

MAX4400 toc15

FREQUENCY (Hz)

THD (%)

0.1

0.01

0.0001

0.001

RL = 2kΩ
V

OUT

= 2Vp-p

A

V

= +1

10 1k100 10k 100k

TOTAL HARMONIC DISTORTION

vs. FREQUENCY

MAX4400 toc16

FREQUENCY (Hz)

THD (%)

0.01

0.0001

0.001

RL = 100kΩ
V

OUT

= 2Vp-p

A

V

= +1

0.0001

0.001

0.1

0.01

1

10

0 1.00.5 1.5 2.0 2.5 3.0

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. INPUT AMPLITUDE

MAX4400 toc17

VIN (Vp-p)

THD + N (%)

RL = 2kΩ
f = 10kHz
BW = 20kHz

0.0001

0.001

0.1

0.01

1

10

0 1.00.5 1.5 2.0 2.5 3.0

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. INPUT AMPLITUDE

MAX4400 toc18

VIN (Vp-p)

THD + N (%)

RL = 100kΩ
f = 10kHz
BW = 20kHz

MAX4400–MAX4403

Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown

6 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(VDD= +5V, VSS= 0, VCM= VDD/2, V

SHDN

= 5V, RL= ∞ connected to VDD/2, TA= +25°C, unless otherwise noted.)

CAPACITIVE-LOAD STABILITY

2000

0

1k 10k 100k

500

MAX4400 toc19

RESISTIVE LOAD (Ω)

CAPACITIVE LOAD (pF)

1000

1500

AV = +1
T

A

= +25°C

UNSTABLE

REGION

STABLE
REGION

2µs/div

IN

50mV/div

OUT

NONINVERTING SMALL-SIGNAL

TRANSIENT RESPONSE

MAX4400 toc20

AV = +1V/V
R

L

= 2kΩ

10µs/div

IN

2V/div

OUT

NONINVERTING LARGE-SIGNAL

TRANSIENT RESPONSE

MAX4400 toc21

AV = +1V/V
R

L

= 2kΩ

0

10

5

20

15

25

30

0 200 300100 400 500 600

PERCENT OVERSHOOT

vs. CAPACITIVE LOAD

MAX4400 toc22

C

LOAD

(pF)

OVERSHOOT (%)

NEGATIVE OVERSHOOT

POSITIVE OVERSHOOT

0

100

50

250

200

150

400

350

300

450

021 3456

SUPPLY CURRENT vs. SUPPLY VOLTAGE

MAX4400 toc24

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (µA)

V

OUT

= VDD/2

MAX4400–MAX4403

Single/Dual/Quad, Low-Cost, Single-Supply,

Rail-to-Rail Op Amps with Shutdown

_______________________________________________________________________________________ 7

FUNCTION

— — Noninverting Amplifier Input A

— — Noninverting Amplifier Input B

— — Noninverting Amplifier Input C

— — Noninverting Amplifier Input D

— — Inverting Amplifier Input B

— — Inverting Amplifier Input A

3 3 Inverting Amplifier Input

2 2

Negative Supply. Connect to ground for single­supply operation

— — Amplifier Output B

— — Amplifier Output A

4 4 Amplifier Output

— — Inverting Amplifier Input D

— — Inverting Amplifier Input C

Pin Description

— 5

Active-Low Shutdown Input. Connect to VDDfor
normal operation. Do not leave floating.

5 6 Positive Supply

— — Amplifier Output D

— — Amplifier Output C

3

5

—

—

6

2

—

4

7

1

—

—

—

—

8

—

—

PIN

3

5

10

12

6

2

—

11

7

1

—

13

9

—

4

14

8

NAME

INA+

INB+

INC+

IND+

INB-

INA-

IN-

V

SS

OUTB

OUTA

OUT

IND-

INC-

SHDN

V

DD

OUTD

OUTC

1 Noninverting Amplifier Input1 — — IN+

MAX4401MAX4400 MAX4402 MAX4403

Detailed Description

Rail-to-Rail Output Stage

The MAX4400–MAX4403 can drive a 2kΩ load and still
typically swing within 55mV of the supply rails. Figure 1
shows the output voltage swing of the MAX4400 config­ured with AV = +10V/V.

Driving Capacitive Loads

Driving a capacitive load can cause instability in many
op amps, especially those with low quiescent current.
The MAX4400–MAX4403 are unity-gain stable for a
range of capacitive loads to above 400pF. Figure 2
shows the response of the MAX4400 with an excessive
capacitive load. Adding a series resistor between the
output and the load capacitor (Figure 3) improves the

1V/div

100µs/div

Figure 1. Rail-to-Rail Output Operation

MAX4400–MAX4403

Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown

8 _______________________________________________________________________________________

circuit’s response by isolating the load capacitance
from the op amp’s output.

Applications Information

Shutdown Mode

The MAX4401 features a low-power shutdown mode.
When SHDN goes low, the supply current drops to

0.1µA (typical). The output enters a high-impedance
state. Pull SHDN high to enable the amplifier. Do not
leave SHDN floating. Figure 4 shows the shutdown
waveform.

Power-Up

The MAX4400–MAX4403 outputs typically settle within
5µs after power-up. Figure 5 shows the output voltage
on power-up and power-down.

Power Supplies and Layout

The MAX4400–MAX4403 operate from a single +2.5V
to +5.5V power supply. Bypass the power supply with a

0.1µF capacitor to ground.

Good layout techniques optimize performance by
decreasing the amount of stray capacitance at the op
amp’s inputs and outputs. To decrease stray capaci­tance, minimize trace lengths by placing external com­ponents close to the op amp’s pins.

2µs/div

IN

50mV/div

OUT

R

ISO

C

L

MAX4400
MAX4401
MAX4402
MAX4403

Figure 3. Capacitive-Load-Driving Circuit

RL = 10MΩ TO GND
C

L

= 25pF

400µs/div

SHDN

2V/div

OUT

Figure 4. Shutdown Waveform

10µs/div

OUT

1V/div

V

DD

2V/div

Figure 5. Power-Up/Power-Down Waveform

Figure 2. Small-Signal Transient Response with Excessive
Capacitive Load

TRANSISTOR COUNT: 101 (MAX4400/MAX4401)

202 (MAX4402)
404 (MAX4403)

Chip Information

MAX4400–MAX4403

Single/Dual/Quad, Low-Cost, Single-Supply,

Rail-to-Rail Op Amps with Shutdown

_______________________________________________________________________________________ 9

Package Information

SC70, 5L.EPS

6

SOT23-8/SO TSSOP/SO

V

SS

OUTA

INA+

1

2

3

4

8

INB-

5

INB+

7

OUTB

INA-

V

DD

OUTA

INA+

INB+

OUTB

INB-

1

2

3

4

5

6

7

14

13

12

11

10

9

8

IND+

INC+

INC-

OUTC

IND-

OUTD

INA-

V

DD

V

SS

MAX4403

MAX4402

Pin Configurations (continued)

MAX4400–MAX4403

Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown

10 ______________________________________________________________________________________

SC70, 6L.EPS

Package Information (continued)

MAX4400–MAX4403

Single/Dual/Quad, Low-Cost, Single-Supply,

Rail-to-Rail Op Amps with Shutdown

______________________________________________________________________________________ 11

Package Information (continued)

SOT5L.EPS

MAX4400–MAX4403

Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

© 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

Package Information (continued)

SOT23, 8L.EPS