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MAX4230–MAX4234
High-Output-Drive, 10MHz, 10V/μs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
General Description
The MAX4230–MAX4234 single/dual/quad, high-output
drive CMOS op amps feature 200mA of peak output cur-
rent, rail-to-rail input, and output capability from a single
2.7V to 5.5V supply. These amplifiers exhibit a high slew
rate of 10V/μs and a gain-bandwidth product (GBWP) of
10MHz. The MAX4230–MAX4234 can drive typical headset
levels (32Ω), as well as bias an RF power amplifier (PA)
in wireless handset applications.
The MAX4230 comes in a tiny 5-pin SC70 package
and the MAX4231, single with shutdown, is offered in
a 6-pin SC70 package and in 1.5mm x 1.0mm UCSP
and thin μDFN packages. The dual op-amp MAX4233 is
offered in the space-saving 10-bump chip-scale package
(UCSP™), providing the smallest footprint area for a dual
op amp with shutdown.
These op amps are designed to be part of the PA control
circuitry, biasing RF PAs in wireless headsets. The MAX4231/
MAX4233 offer a SHDN feature that drives the output low.
This ensures that the RF PA is fully disabled when needed,
preventing unconverted signals to the RF antenna.
Applications
RF PA Biasing Controls in Handset Applications
Portable/Battery-Powered Audio Applications
Portable Headphone Speaker Drivers (32Ω)
Audio Hands-Free Car Phones (Kits)
Tablet/Notebook Computers
Digital-to-Analog Converter Buffers
Transformer/Line Drivers
Motor Drivers
Selector Guide appears at end of data sheet.
Pin/Bump Configurations appear at end of data sheet.
Visit www.maximintegrated.com/products/patents for product
patent marking information.
UCSP is a trademark of Maxim Integrated Products, Inc.
Benefits and Features
● Optimized for Headsets and High-Current Outputs
200mA Output Drive Capability
100dB Voltage Gain (RL = 100kΩ)
85dB Power-Supply Rejection Ratio
No Phase Reversal for Overdriven Inputs
Unity-Gain Stable for Capacitive Loads to 780pF
Suitable for High-Bandwidth Applications
10MHz Gain-Bandwidth Product
High Slew Rate: 10V/μs
Extends the Battery Life of Portable Applications
1.1mA Supply Current per Amplifier
Low-Power Shutdown Mode Reduces Supply Current
to < 1μA
Small Package Options
Tiny, 2.1mm x 2.0mm Space-Saving SC70 Package
AEC-Q100 Qualified, Refer to Ordering Information
for the List of /V Parts
Ordering Information
PART
TEMP
RANGE
PIN-
PACKAGE
TOP
MARK
MAX4230AXK+T -40°C to +125°C 5 SC70
ACS
MAX4230AXK/V+T -40°C to +125°C 5 SC70
+AUU
MAX4230AUK+T -40°C to +125°C 5 SOT23
ABZZ
MAX4231AXT+T -40°C to +125°C 6 SC70
ABA
MAX4231AUT+T -40°C to +125°C 6 SOT23
ABNF
MAX4231ART+T -40°C to +125°C 6 UCSP
AAM
MAX4231AYT+T
-40°C to +125°C
6 Thin µDFN
(Ultra-Thin LGA)
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
+AH
Ordering Information continued at end of data sheet.
Typical Operating Circuit
ANTENNA
2.7V TO 5.5V
PA
DAC
MAX4231
ILOAD = 30mA
RISO
CLOAD
SHDN
C
R RF
19-2164; Rev 21; 2/18

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MAX4230–MAX4234
High-Output-Drive, 10MHz, 10V/μs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
Absolute Maximum Ratings
Supply Voltage (VDD to VSS) ................................................6V
All Other Pins ...................................(VSS - 0.3V) to (VDD + 0.3V)
Output Short-Circuit Duration to VDD or VSS (Note 1) ...............10s
Continuous Power Dissipation (Multilayer, TA = +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C) ..............247mW
5-Pin SOT23 (derate 3.9mW/°C above +70°C)............313mW
6-Pin SC70 (derate 3.1mW/°C above +70°C) ..............245mW
6-Pin SOT23 (derate 13.4mW/°C above +70°C)........1072mW
6-Pin Thin µDFN (derate 2.1mW/°C above +70°C)...170.2mW
6-Bump UCSP (derate 3.9mW/°C above +70°C) .....308.3mW
8-Pin SOT23 (derate 5.1mW/°C above +70°C).........408.2mW
μMAX is a registered trademark of Maxim Integrated Products, Inc.
8-Pin µMAX® (derate 4.8mW/°C above +70°C) .......387.8mW
10-Pin µMAX (derate 8.8mW/°C above +70°C) .......707.3mW
10-Bump UCSP (derate 5.6mW/°C above +70°C) .....448.7mW
14-Pin SO (derate 11.9mW/°C above +70°C) ..........952.4mW
14-Pin TSSOP (derate 10mW/°C above +70°C) ......796.8mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature
(excluding 6 and 10 UCSP, soldering, 10s) ................+300°C
Soldering Temperature (reflow) .......................................+260°C
Note 1: Package power dissipation should also be observed.
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
(VDD = 2.7V, VSS = 0V, VCM = VDD/2, VOUT = (VDD/2), RL = ∞ connected to (VDD/2), VSHDN = VDD, TA = +25°C, unless otherwise
noted.) (Note 2)
PARAMETER
Operating Supply Voltage
Range
Input Offset Voltage
Input Bias Current (Note 4)
Input Offset Current
Input Resistance
Common-Mode Input
Voltage Range
Common-Mode Rejection
Ratio
Power-Supply Rejection
Ratio
Shutdown Output
Impedance
SYMBOL
VDD
VOS
IB
IOS
RIN
VCM
CMRR
PSRR
ROUT
CONDITIONS
Inferred from PSRR test
VCM = VSS to VDD
VCM = VSS to VDD
Inferred from CMRR test
VSS < VCM < VDD
VDD = 2.7V to 5.5V
VSHDN = 0V (Note 3)
MIN TYP MAX UNITS
2.7 5.5 V
0.85
50
1000
±6
1
mV
pA
pA
MΩ
VSS
VDD
V
52 70
dB
73 85
dB
10
Output Voltage in Shutdown
Large-Signal Voltage Gain
Output Voltage Swing
VOUT(SHDN)
AVOL
VOUT
VSHDN = 0V, RL = 200Ω (Note 3)
VSS + 0.20V <
VOUT < VDD -
0.20V
RL = 32Ω
RL = 200Ω
RL = 2kΩ
RL = 100kΩ
RL = 2kΩ
RL = 200Ω
VDD - VOH
VOL - VSS
VDD - VOH
VOL - VSS
VDD - VOH
VOL - VSS
68
100
85 98
74 80
400 500
360 500
80 120
70 120
8 14
7 14
mV
dB
mV
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MAX4230–MAX4234
High-Output-Drive, 10MHz, 10V/μs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
DC Electrical Characteristics (continued)
(VDD = 2.7V, VSS = 0V, VCM = VDD/2, VOUT = (VDD/2), RL = ∞ connected to (VDD/2), VSHDN = VDD, TA = +25°C, unless otherwise
noted.) (Note 2)
PARAMETER
Output Source/Sink
Current
Output Voltage
Quiescent Supply Current
(per Amplifier)
Shutdown Supply Current
(per Amplifier) (Note 3)
SHDN Logic Threshold
(Note 3)
SHDN Input Bias Current
SYMBOL
IOUT
IDD
IDD(SHDN)
VIL
VIH
CONDITIONS
VDD = 2.7V, VIN = ±100mV
VDD = 5V, VIN = ±100mV
IL = 10mA
VDD =
2.7V
VDD - VOH
VOL - VSS
IL = 30mA VDD = 5V
VDD - VOH
VOL - VSS
VDD = 5.5V, VCM = VDD/2
VDD = 2.7V, VCM = VDD/2
VSHDN = 0V,
RL = ∞
VDD = 5.5V
VDD = 2.7V
Shutdown mode
Normal mode
VSS < VSHDN < VDD (Note 3)
MIN TYP
70
200
128
112
240
224
1.2
1.1
0.5
0.1
VDD x 0.57
50
MAX
200
175
320
300
2.3
2.0
1
1
0.8
UNITS
mA
mV
mA
µA
V
pA
DC Electrical Characteristics
(VDD = 2.7V, VSS = 0V, VCM = VDD/2, VOUT = (VDD/2), RL = ∞ connected to (VDD/2), VSHDN = VDD, TA = -40 to +125°C, unless other
wise noted.) (Note 2)
PARAMETER
Operating Supply Voltage
Range
Input Offset Voltage
Offset-Voltage Tempco
Input Bias Current
(Note 4)
Common-Mode Input Voltage
Range
Common-Mode Rejection
Ratio
Power-Supply Rejection Ratio
Output Voltage in Shutdown
Large-Signal Voltage Gain
Output Voltage Swing
SYMBOL
VDD
VOS
∆VOS/∆T
IB
VCM
CONDITIONS
Inferred from PSRR test
TA = -40°C to +85°C
TA = -40°C to +125°C
Inferred from CMRR test
CMRR
VSS < VCM < VDD
PSRR
VOUT(SHDN)
AVOL
VOUT
VDD = 2.7V to 5.5V
VSHDN = 0V, RL = 200Ω (Note 3)
VSS + 0.20V
< VDD - 0.20V
RL = 2kΩ
RL = 200Ω
RL = 32Ω
TA = +85°C
VDD - VOH
VOL - VSS
RL = 200Ω
VDD - VOH
VOL - VSS
RL = 2kΩ
VDD - VOH
VOL - VSS
MIN TYP MAX UNITS
2.7 5.5 V
±8 mV
±3 µV/°C
17
pA
550
VSS
VDD
V
46 dB
70 dB
150 mV
76
dB
67
650
650
150
mV
150
20
20
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MAX4230–MAX4234
High-Output-Drive, 10MHz, 10V/μs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
DC Electrical Characteristics
(VDD = 2.7V, VSS = 0V, VCM = VDD/2, VOUT = (VDD/2), RL = ∞ connected to (VDD/2), VSHDN = VDD, TA = -40 to +125°C, unless other
wise noted.) (Note 2)
PARAMETER
Output Voltage
Quiescent Supply Current
(per Amplifier)
Shutdown Supply Current
(per Amplifier) (Note 3)
SHDN Logic Threshold
(Note 3)
SYMBOL
IDD
IDD(SHDN)
VIL
VIH
CONDITIONS
IL = 10mA
IL = 30mA
TA = -40°C
to +85°
VDD =
2.7V
VDD = 5V
VDD - VOH
VOL - VSS
VDD - VOH
VOL - VSS
VDD = 5.5V, VCM = VDD/2
VDD = 2.7V, VCM = VDD/2
VSHDN < 0V, RL = ∞
VDD = 5.5V
VDD = 2.7V
Shutdown mode
Normal mode
MIN TYP
VDD x 0.61
MAX
250
230
400
370
2.8
2.5
2.0
2.0
0.8
UNITS
mV
mA
µA
V
AC Electrical Characteristics
(VDD = 2.7V, VSS = 0V, VCM = VDD/2, VOUT = (VDD/2), RL = ∞ connected to (VDD/2), VSHDN = VDD, TA = +125°C, unless otherwise
noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Gain-Bandwidth Product
GBWP
VCM = VDD/2
Full-Power Bandwidth
Slew Rate
FPBW
SR
VOUT = 2VP-P, VDD = 5V
Phase Margin
PM
Gain Margin
GM
Total Harmonic Distortion
Plus Noise
Input Capacitance
Voltage-Noise Density
THD+N
CIN
en
f = 10kHz, VOUT = 2VP-P,
AVCL = 1V/V
f = 1kHz
f = 10kHz
Channel-to-Channel
Isolation
f = 1kHz, RL = 100kΩ
Capacitive-Load Stability
Shutdown Time
Enable Time from
Shutdown
tSHDN
tENABLE
AVCL = 1V/V, no sustained oscillations
(Note 3)
(Note 3)
Power-Up Time
tON
Note 2: All units 100% tested at +25°C. All temperature limits are guaranteed by design.
Note 3: SHDN logic parameters are for the MAX4231/MAX4233 only.
Note 4: Guaranteed by design.
10
0.8
10
70
15
0.0005
8
15
12
125
780
1
6
5
MHz
MHz
V/μs
Degrees
dB
%
pF
nV/√Hz
dB
pF
µs
µs
µs
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MAX4230–MAX4234
High-Output-Drive, 10MHz, 10V/μs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
Typical Operating Characteristics
(VDD = 2.7V, VSS = 0V, VCM = VDD/2, VOUT = VDD/2, RL = ∞, connected to VDD/2, VSHDN = VDD, TA = +25°C, unless otherwise noted.)
GAIN AND PHASE vs. FREQUENCY
70 120MAX4230 toc01
60 90
50 60
40 30
30 0
20 -30
10 -60
0 -90
-10
-20 AV = 1000V/V
-120
-150
-30
0.01k 0.1k
1k 10k 100k 1M
FREQUENCY (Hz)
-180
10M 100M
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
0
-10
-20
-30
-40
-50
-60
-70
-80
-90 AV = 1V/V
-100
0.01k 0.1k 1k 10k 100k 1M 10M
FREQUENCY (Hz)
SUPPLY CURRENT vs. TEMPERATURE
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-40 -20
0 20 40 60 80 100 120
TEMPERATURE (°C)
GAIN AND PHASE vs. FREQUENCY
(CL = 250pF)
70 120MAX4230 toc02
60 90
50 60
40 30
30 0
20 -30
10 -60
0 -90
-10 AV = 1000V/V
-20 CL = 250pF
-120
-150
-30
0.01k 0.1k
1k 10k 100k 1M
FREQUENCY (Hz)
-180
10M 100M
OUTPUT IMPEDANCE vs. FREQUENCY
1000
100
10
1
0.1
0.01
1k
AV = 1V/V
10k 100k 1M
FREQUENCY (Hz)
10M
SUPPLY CURRENT vs. TEMPERATURE
(SHDN = LOW)
110
100
90
80
70
60
50
-40 -20
SHDN = VSS
0 20 40 60 80 100 120
TEMPERATURE (C)
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