MAXIM MAX4402AKA-T

19-1599; Rev 3; 8/01
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
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 AVOL 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 CLOAD = 400pF
♦ Ground-Sensing Inputs
Applications
Ordering Information
Single-Supply, Zero-Crossing Detectors
Instruments and Terminals
PART
TEMP RANGE
PINPACKAGE
Portable Communications
MAX4400AXK-T
-40°C to +125°C
5 SC70-5
Electronic Ignition Modules
MAX4400AUK-T
MAX4401AXT-T
MAX4402AKA-T
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
5 SOT23-5
6 SC70-6
8 SOT23-8
ADNP
AAB
AADI
MAX4402AUA
MAX4402ASA
MAX4403AUD
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
8 µMAX
8 SO
14 TSSOP
—
—
—
MAX4403ASD
-40°C to +125°C
14 SO
—
Infrared Receivers
Sensor Signal Detection
Selector Guide
PART
NO. OF AMPLIFIERS
PER PACKAGE
SHUTDOWN
MODE
MAX4400
1
No
MAX4401
1
Yes
MAX4402
2
No
MAX4403
4
No
AAG
Pin Configurations
MAX4400
IN+ 1
MAX4401
5 VDD
VSS 2
4 OUT
IN- 3
SC70-5/SOT23-5
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
TOP
MARK
IN+ 1
6 VDD
VSS 2
5 SHDN
IN- 3
4 OUT
SC70-6
Pin Configurations continued at end of data sheet.
________________________________________________________________ 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.
1
MAX4400–MAX4403
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 output 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 is packaged in a 14-pin TSSOP
or SO.
MAX4400–MAX4403
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
ABSOLUTE MAXIMUM RATINGS
8-Pin SOT23 (derate 7.52mW/°C above +70°C)..........602mW
8-Pin µMAX (derate 4.5mW/°C above +70°C) ............ 362mW
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
Power-Supply Voltage (VDD to VSS) .........................-0.3V to +6V
All Other Pins ...................................(VSS - 0.3V) to (VDD + 0.3V)
Output Short-Circuit Duration
OUT Shorted to VSS or VDD................................... Continuous
Continuous Power Dissipation (TA = +70°C)
5-Pin SC70 (derate 2.5mW/°C above +70°C) ............. 200mW
5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
6-Pin SC70 (derate 2.27mW/°C above +70°C) ............181mW
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.
ELECTRICAL CHARACTERISTICS
(VDD = +5V, VSS = 0, VCM = 0, VOUT = VDD/2, RL = ∞ connected to VDD/2, SHDN = VDD (MAX4401 only), TA = +25°C, unless
otherwise noted.)
PARAMETER
Supply Voltage Range
SYMBOL
VDD
Supply Current per Amplifier
IDD
Supply Current in Shutdown
ISHDN
Input Offset Voltage
VOS
MIN
TYP
2.5
VDD = 2.5V
320
VDD = 5.0V
410
MAX
UNITS
5.5
V
700
SHDN = VSS (Note 1)
0.00002
1
MAX4400/MAX4401
±0.8
±4.5
MAX4402/MAX4403
±1.0
±5.5
µA
µA
mV
IB
(Note 2)
±0.1
±100
pA
Input Offset Current
IOS
(Note 2)
±0.1
±100
pA
Input Resistance
RIN
Differential or common mode
1000
Input Common-Mode Voltage
Range
VCM
Inferred from CMRR test
VSS
Common-Mode Rejection Ratio
CMRR
VSS ≤ VCM ≤ VDD - 1.4V
68
Power-Supply Rejection Ratio
PSRR
2.5V ≤ VDD ≤ 5.5V
Large-Signal Voltage Gain
AVOL
VSS + 0.3V ≤
VOUT ≤ VDD - 0.3V
RL = 100kΩ
Output Voltage High
VOH
Specified as
|VDD - VOH|
RL = 100kΩ
3
RL = 2kΩ
55
Output Voltage Low
VOL
Specified as
|VSS - VOL|
RL = 100kΩ
2
RL = 2kΩ
30
Input Bias Current
Output Short-Circuit Current
Shutdown Mode Output
Leakage
IOUTSHDN
78
RL = 2kΩ
GΩ
VDD - 1.4
dB
100
dB
120
90
dB
110
Sourcing
12
30
200
75
VIL
(Note 1)
VIH
(Note 1)
mV
±1.0
0.3 ✕ VDD
0.7 ✕ VDD
µA
V
V
SHDN Input Current
IIL, IIH
Gain-Bandwidth Product
GBW
800
kHz
φM
70
degrees
Gain Margin
Slew Rate
SR
SHDN = VDD or VSS (Note 1)
mV
mA
Device in shutdown mode, SHDN = VSS,
VSS < VOUT < VCC (Note 1)
SHDN Logic High
V
84
Sinking
SHDN Logic Low
Phase Margin
2
CONDITIONS
Inferred from PSRR test
±0.001
±500
nA
20
dB
1
V/µs
_______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
(VDD = +5V, VSS = 0, VCM = 0, VOUT = VDD/2, RL = ∞ connected to VDD/2, SHDN = VDD (MAX4401 only), TA = +25°C, unless
otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Noise Density
en
f = 10kHz
36
nV/√Hz
Input Current Noise Density
in
f = 10kHz
1
fA/√Hz
Capacitive-Load Stability
CLOAD
AV = +1V/V
400
pF
Shutdown Delay Time
tSHDN
(Note 1)
0.4
µs
tEN
(Note 1)
6
µs
Enable Delay Time
Power-On Time
tON
5
µs
Input Capacitance
CIN
2.5
pF
Total Harmonic Distortion
Total Harmonic Distortion
THD
Settling Time to 0.1%
tS
f = 10kHz, VOUT =
2Vp-p, AV = +1V/V
RL = 100kΩ
0.009
RL = 2kΩ
0.015
%
7
VOUT = 2V step
µs
ELECTRICAL CHARACTERISTICS
(VDD = +5V, VSS = 0, VCM = 0, VOUT = VDD/2, RL = ∞ connected to VDD/2, TA = -40°C to +125°C, unless otherwise noted.) (Note 3)
PARAMETER
SYMBOL
Supply Voltage Range
VDD
Supply Current per Amplifier
IDD
Input Offset Voltage
VOS
Input Offset Voltage Drift
CONDITIONS
MIN
TYP
2.5
Inferred from PSRR test
MAX
V
800
µA
MAX4400/MAX4401
±6.5
MAX4402/MAX4403
±8.0
±1
TCVOS
UNITS
5.5
mV
µV/°C
IB
(Note 2)
±100
pA
Input Offset Current
IOS
(Note 2)
±100
pA
Input Common-Mode Voltage
Range
VCM
Inferred from CMRR test
VSS
VSS ≤ VCM ≤ VDD - 1.5V
65
VSS ≤ VCM ≤ VDD - 1.0V TA = -20°C to +125°C
50
2.5V ≤ VCC ≤ 5.5V
74
Input Bias Current
Common-Mode Rejection Ratio
CMRR
Power-Supply Rejection Ratio
PSRR
Shutdown Mode Output
Leakage
IOUTSHDN
Device in shutdown
mode, SHDN = VSS,
VSS < VOUT < VDD
(Note 1)
SHDN Logic Low
VIL
(Note 1)
SHDN Logic High
VIH
(Note 1)
VDD - 1.5
V
dB
dB
±1.0
TA = -40°C to +85°C
µA
±5.0
TA = +85°C to +125°C
0.3 ✕ VDD
0.7 ✕ VDD
V
V
SHDN Input Current
IIL, IIH
SHDN = VDD or VSS (Notes 1, 2)
Large-Signal Voltage Gain
AVOL
VSS + 0.3V ≤ VOUT ≤ VDD - 0.3V, RL = 2kΩ
Output Voltage High
VOH
Specified as |VDD - VOH|, RL = 2kΩ
250
mV
Output Voltage Low
VOL
Specified as |VSS - VOL|, RL = 2kΩ
100
mV
±1000
85
nA
dB
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 TA = +25°C (exceptions noted). All temperature limits are guaranteed by design.
_______________________________________________________________________________________
3
MAX4400–MAX4403
ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics
(VDD = +5V, VSS = 0, VCM = VDD/2, V SHDN = 5V, RL = ∞ connected to VDD/2, TA = +25°C, unless otherwise noted.)
GAIN AND PHASE
vs. FREQUENCY (CL = 400pF)
100
10
1k
10k 100k
1M
PSRR (dB)
-110
10
100
1
0.1
1M
10M
10
10k
100k
SUPPLY CURRENT vs. TEMPERATURE
MAX4401
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
100k
MAX4400 toc05
400
350
1M
VSHDN = VSS
10k
1k
100
10
300
10
100
1k
10k
100k
1M
1
-40 -20
0
FREQUENCY (Hz)
20
40
60
80
100 120
-40 -20
0
TEMPERATURE (°C)
MAX4401
OUTPUT LEAKAGE CURRENT
vs. TEMPERATURE
40
60
80
100 120
OUTPUT VOLTAGE SWING HIGH
vs. TEMPERATURE
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
1500
70
MAX4400 toc08
MAX4400 toc07
VSHDN = VSS
VOUT = VDD/2
20
TEMPERATURE (°C)
1000
MAX4400 toc09
0.001
RL = 2kΩ to VDD/2
60
50
1k
VOS (µV)
VDD - VOH (mV)
500
10
0
-500
0.1
0
20
40
60
80
TEMPERATURE (°C)
100 120
30
10
0
-1500
-40 -20
40
20
-1000
4
1k
FREQUENCY (Hz)
0.01
1M
100
FREQUENCY (Hz)
SUPPLY CURRENT (pA)
10
10k 100k
1k
450
SUPPLY CURRENT (µA)
OUTPUT IMPEDANCE (Ω)
100
MAX4400 toc03
-90
AVCL = +1000V/V
500
MAX4400 toc4
1000
-50
-70
FREQUENCY (Hz)
OUTPUT IMPEDANCE
vs. FREQUENCY
-10
-30
1
10M
10
MAX4400 toc06
AVCL = +1000V/V
1
80
60
40
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX4400 toc02
MAX4400 toc01
80
60
40
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
GAIN (dB)/PHASE (degrees)
GAIN (dB)/PHASE (degrees)
GAIN AND PHASE
vs. FREQUENCY (NO LOAD)
ILEAK (pA)
MAX4400–MAX4403
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
-40 -20
0
20
40
60
80
TEMPERATURE (°C)
100 120
-40 -20
0
20
40
60
80
TEMPERATURE (°C)
_______________________________________________________________________________________
100 120
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
40
140
RL = 2kΩ
120
20
100
GAIN (dB)
CMRR (dB)
-70
30
-80
80
60
40
-90
10
MAX4400 toc12
RL = 2kΩ to VDD/2
MAX4400 toc11
-60
MAX4400 toc10
50
VOL - VEE (mV)
LARGE-SIGNAL GAIN
vs. OUTPUT VOLTAGE
COMMON-MODE REJECTION RATIO
vs. TEMPERATURE
OUTPUT VOLTAGE SWING LOW
vs. TEMPERATURE
20
0
20
40
60
80
-40 -20
100 120
0
20
40
60
80
0.5
100 120
1.0
1.5
2.0
2.5
3.0
3.5
4.0
TEMPERATURE (°C)
TEMPERATURE (°C)
VOUT (V)
LARGE-SIGNAL GAIN
vs. TEMPERATURE
MINIMUM OPERATING VOLTAGE
vs. TEMPERATURE
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
RL = 2kΩ
135
0.1
RL = 2kΩ
VOUT = 2Vp-p
AV = +1
2.5
130
4.5
MAX4400 toc15
3.0
MAX4400 toc13
140
MAX4400 toc14
-40 -20
120
THD (%)
0.01
125
VMIN (V)
GAIN (dB)
0
-100
0
2.0
115
0.001
1.5
110
105
1.0
100
-40 -20
0
20
40
60
80
0
20
40
60
80
100 120
10
1k
10k
100k
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. INPUT AMPLITUDE
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. INPUT AMPLITUDE
0.1
0.01
1k
FREQUENCY (Hz)
10k
100k
0.01
0.0001
0.0001
100
0.1
0.001
0.001
0.0001
RL = 100kΩ
f = 10kHz
BW = 20kHz
1
THD + N (%)
THD + N (%)
0.001
RL = 2kΩ
f = 10kHz
BW = 20kHz
1
10
MAX4400 toc17
MAX4400 toc16
10
MAX4400 toc18
TEMPERATURE (°C)
RL = 100kΩ
VOUT = 2Vp-p
AV = +1
10
100
TEMPERATURE (°C)
0.01
THD (%)
0.0001
-40 -20
100 120
0
0.5
1.0
1.5
VIN (Vp-p)
2.0
2.5
3.0
0
0.5
1.0
1.5
2.0
2.5
3.0
VIN (Vp-p)
_______________________________________________________________________________________
5
MAX4400–MAX4403
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.)
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.)
MAX4400 toc19
2000
AV = +1
TA = +25°C
AV = +1V/V
RL = 2kΩ
MAX4400 toc20
NONINVERTING SMALL-SIGNAL
TRANSIENT RESPONSE
CAPACITIVE-LOAD STABILITY
CAPACITIVE LOAD (pF)
1500
IN
UNSTABLE
REGION
1000
50mV/div
STABLE
REGION
500
OUT
0
1k
10k
100k
2µs/div
RESISTIVE LOAD (Ω)
30
MAX4400 toc21
AV = +1V/V
RL = 2kΩ
NEGATIVE OVERSHOOT
25
OVERSHOOT (%)
IN
2V/div
MAX4400 toc22
PERCENT OVERSHOOT
vs. CAPACITIVE LOAD
NONINVERTING LARGE-SIGNAL
TRANSIENT RESPONSE
20
15
10
OUT
5
POSITIVE OVERSHOOT
0
10µs/div
0
100
200
300
400
500
600
CLOAD (pF)
MAX4402/MAX4403
CHANNEL-TO-CHANNEL ISOLATION
vs. FREQUENCY
SUPPLY CURRENT vs. SUPPLY VOLTAGE
350
300
250
200
150
100
50
120
110
100
90
80
70
60
50
0
0
1
2
3
4
SUPPLY VOLTAGE (V)
6
130
MAX4400 toc25
VOUT = VDD/2
400
CHANNEL-TO-CHANNEL ISOLATION (dB)
MAX4400 toc24
450
SUPPLY CURRENT (µA)
MAX4400–MAX4403
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
5
6
0.01
0.1
1
10
100
FREQUENCY (kHz)
_______________________________________________________________________________________
1000
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
PIN
NAME
FUNCTION
MAX4400
MAX4401
MAX4402
MAX4403
1
1
—
—
IN+
—
—
3
3
INA+
Noninverting Amplifier Input A
—
—
5
5
INB+
Noninverting Amplifier Input B
—
—
—
10
INC+
Noninverting Amplifier Input C
—
—
—
12
IND+
Noninverting Amplifier Input D
2
2
4
11
VSS
Negative Supply. Connect to ground for singlesupply operation
3
3
—
—
IN-
Inverting Amplifier Input
—
—
2
2
INA-
Inverting Amplifier Input A
—
—
6
6
INB-
Inverting Amplifier Input B
—
—
—
9
INC-
Inverting Amplifier Input C
—
—
—
13
IND-
Inverting Amplifier Input D
4
4
—
—
OUT
Amplifier Output
—
—
1
1
OUTA
Amplifier Output A
—
—
7
7
OUTB
Amplifier Output B
—
—
—
8
OUTC
Amplifier Output C
—
—
—
14
OUTD
Amplifier Output D
5
6
8
4
VDD
—
5
—
—
SHDN
Noninverting Amplifier Input
Positive Supply
Active-Low Shutdown Input. Connect to VDD for
normal operation. Do not leave floating.
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.
1V/div
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
100µs/div
Figure 1. Rail-to-Rail Output Operation
_______________________________________________________________________________________
7
MAX4400–MAX4403
Pin Description
MAX4400–MAX4403
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
IN
RISO
50mV/div
CL
MAX4400
MAX4401
MAX4402
MAX4403
OUT
2µs/div
Figure 2. Small-Signal Transient Response with Excessive
Capacitive Load
SHDN
Figure 3. Capacitive-Load-Driving Circuit
VDD
2V/div
2V/div
OUT
1V/div
OUT
RL = 10MΩ TO GND
CL = 25pF
10µs/div
400µs/div
Figure 5. Power-Up/Power-Down Waveform
Figure 4. Shutdown Waveform
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
20pA (typ) and 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 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.
Chip Information
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.
8
MAX4400/MAX4401 TRANSISTOR COUNT: 101
MAX4402 TRANSISTOR COUNT: 202
MAX4403 TRANSISTOR COUNT: 404
_______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
MAX4403
OUTA 1
14 OUTD
INA- 2
13 IND-
INA+ 3
12 IND+
VDD 4
11 VSS
INB+ 5
10 INC+
INB- 6
9 INC-
OUTB 7
8 OUTC
MAX4402
OUTA 1
8 VDD
INA- 2
7 OUTB
INA+ 3
6 INB-
VSS 4
5 INB+
SOT23-8/SO/µMAX
TSSOP/SO
SC70, 5L.EPS
Package Information
_______________________________________________________________________________________
9
MAX4400–MAX4403
Pin Configurations (continued)
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
SC70, 6L.EPS
MAX4400–MAX4403
Package Information (continued)
10
______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
SOT5L.EPS
______________________________________________________________________________________
11
MAX4400–MAX4403
Package Information (continued)
Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
SOT23, 8L.EPS
MAX4400–MAX4403
Package Information (continued)
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.
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