19-2164; Rev 11; 9/09
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
current, 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 ultra-thin
UCSP and 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 con-
trol 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 dis-
abled when needed, preventing unconverted signals to
the RF antenna.
The MAX4230 family offers low offsets, wide bandwidth,
and high-output drive in a tiny 2.1mm x 2.0mm space-
saving SC70 package. These parts are offered over the
automotive temperature range (-40°C to +125°C).
o
200mA Output Drive Capability
o
Rail-to-Rail Input and Output
o
1.1mA Supply Current per Amplifier
o
o
o
o
o
o
2.7V to 5.5V Single-Supply Operation
10MHz Gain-Bandwidth Product
High Slew Rate: 10V/µs
100dB Voltage Gain (R
L
= 100kΩ)
85dB Power-Supply Rejection Ratio
No Phase Reversal for Overdriven Inputs
Features
MAX4230–MAX4234
o
Unity-Gain Stable for Capacitive Loads to 780pF
o
Low-Power Shutdown Mode Reduces Supply
Current to < 1µA
o
Available in 5-Pin SC70 Package (MAX4230)
and 6-Pin, UCSP and Thin
µDFN
Packages
(MAX4231)
o
Available in 10-Bump UCSP Package (MAX4233)
Ordering Information
PART
MAX4230AXK+T
MAX4230AUK+T
MAX4231AXT+T
MAX4231AUT+T
MAX4231ART+T
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
ACS
ABZZ
ABA
ABNF
AAM
+AI
-40°C to +125°C 5 SC70
-40°C to +125°C 5 SOT23
-40°C to +125°C 6 SC70
-40°C to +125°C 6 SOT23
-40°C to +125°C 6 UCSP
Applications
RF PA Biasing Controls in Handset Applications
Portable/Battery-Powered Audio Applications
Portable Headphone Speaker Drivers (32Ω)
Audio Hands-Free Car Phones (Kits)
Laptop/Notebook Computers/TFT Panels
Sound Ports/Cards
Set-Top Boxes
Digital-to-Analog Converter Buffers
Transformer/Line Drivers
Motor Drivers
MAX4231AYT+TG65 -40°C to +125°C 6 Thin µDFN
+Denotes
a lead-free(Pb)/RoHS-compliant package.
T = Tape and reel.
Ordering Information continued at end of data sheet.
Typical Operating Circuit
ANTENNA
2.7V TO 5.5V
DAC
R
ISO
PA
I
OUT
= 30mA
MAX4231
Selector Guide appears at end of data sheet.
Pin Configurations appear at end of data sheet.
C
SHDN
C
LOAD
UCSP is a trademark of Maxim Integrated Products, Inc.
R
R
F
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
High-Output-Drive, 10MHz, 10V/µs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
MAX4230–MAX4234
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
DD
to V
SS
) ....................................................6V
All Other Pins ....................................(V
SS
- 0.3V) + (V
DD
+ 0.3V)
Output Short-Circuit Duration to V
DD
or V
SS
(Note 1) ................10s
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C) ..............247mW
5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
6-Pin SC70 (derate 3.1mW/°C above +70°C) ..............245mW
6-Pin SOT23 (derate 8.7mW/°C above +70°C)............696mW
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 8.9mW/°C above +70°C)............714mW
Note 1:
Package power dissipation should also be observed.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
8-Pin µMAX
®
(derate 4.5mW/°C above +70°C) ..........362mW
10-Pin µMAX (derate 5.6mW/°C above +70°C) ..........444mW
10-Bump UCSP (derate 6.1mW/°C above +70°C) .....484mW
14-Pin SO (derate 8.3mW/°C above +70°C) ...............667mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Bump Temperature (soldering, reflow)*...........................+200°C
*Hand soldering is not recommended.
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
(V
DD
= 2.7V, V
SS
= 0V, V
CM
= V
DD
/2, V
OUT
= (V
DD
/2), R
L
=
∞
connected to (V
DD
/2), V
SHDN
= V
DD
,
T
A
= +25°C,
unless otherwise
noted.) (Note 2)
PARAMETER
Operating Supply Voltage Range
Input Offset Voltage
Input Bias Current
Input Offset Current
Input Resistance
Common-Mode Input Voltage
Range
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
Shutdown Output Impedance
Output Voltage in Shutdown
Large-Signal Voltage Gain
SYMBOL
V
DD
V
OS
I
B
I
OS
R
IN
V
CM
CMRR
PSRR
R
OUT
Inferred from CMRR test
V
SS
< V
CM
< V
DD
V
DD
= 2.7V to 5.5V
V
SHDN
= 0V (Note 3)
V
SS
52
73
70
85
10
68
100
85
74
98
80
400
360
80
70
8
7
70
mA
200
V
DD
- V
OH
V
OL
- V
SS
V
DD
- V
OH
V
OL
- V
SS
128
112
240
224
200
175
320
300
mV
500
500
120
120
14
14
mV
dB
120
V
CM
= V
SS
to V
DD
V
CM
= V
SS
to V
DD
CONDITIONS
Inferred from PSRR test
MIN
2.7
0.85
50
50
1000
V
DD
TYP
MAX
5.5
±6
UNITS
V
mV
pA
pA
MΩ
V
dB
dB
Ω
mV
V
OUT(SHDN)
V
SHDN
= 0V, R
L
= 200Ω (Note 3)
R
L
= 100kΩ
V
SS
+ 0.20V < V
OUT
A
VOL
R
L
= 2kΩ
< V
DD
- 0.20V
R
L
= 200Ω
R
L
= 32Ω
V
DD
- V
OH
V
OL
- V
SS
V
DD
- V
OH
V
OL
- V
SS
V
DD
- V
OH
V
OL
- V
SS
Output Voltage Swing
V
OUT
R
L
= 200Ω
R
L
= 2kΩ
Output Source/Sink Current
I
OUT
V
DD
= 2.7V, V
IN
= ±100mV
V
DD
= 5V, V
IN
= ±100mV
I
L
= 10mA
V
DD
= 2.7V
V
DD
= 5V
Output Voltage
I
L
= 30mA
2
_______________________________________________________________________________________
High-Output-Drive, 10MHz, 10V/µs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
DC ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 2.7V, V
SS
= 0V, V
CM
= V
DD
/2, V
OUT
= (V
DD
/2), R
L
=
∞
connected to (V
DD
/2), V
SHDN
= V
DD
,
T
A
= +25°C,
unless otherwise
noted.) (Note 2)
PARAMETER
Quiescent Supply Current (per
Amplifier)
Shutdown Supply Current (per
Amplifier) (Note 3)
SHDN
Logic Threshold (Note 3)
SHDN
Input Bias Current
SYMBOL
I
DD
I
DD(SHDN)
V
IL
V
IH
CONDITIONS
V
DD
= 5.5V, V
CM
= V
DD
/ 2
V
DD
= 2.7V, V
CM
= V
DD
/ 2
V
SHDN
= 0V, R
L
=
∞
Shutdown mode
Normal mode
V
SS
< V
S HDN
< V
DD
(Note 3)
V
DD
x 0.57
50
V
DD
= 5.5V
V
DD
= 2.7V
MIN
TYP
1.2
1.1
0.5
0.1
MAX
2.3
2.0
1
1
0.8
UNITS
mA
µA
V
pA
MAX4230–MAX4234
DC ELECTRICAL CHARACTERISTICS
(V
DD
= 2.7V, V
SS
= 0V, V
CM
= V
DD
/2, V
OUT
= (V
DD
/2), R
L
=
∞
connected to (V
DD
/2), V
SHDN
= V
DD
,
T
A
= -40 to +125°C,
unless other-
wise noted.) (Note 2)
PARAMETER
Operating Supply Voltage Range
Input Offset Voltage
Offset-Voltage Tempco
Common-Mode Input Voltage Range
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
Output Voltage in Shutdown
Large-Signal Voltage Gain
SYMBOL
V
DD
V
OS
ΔV
OS
/ΔT
V
CM
CMRR
PSRR
V
OUT(SHDN)
A
VOL
Inferred from CMRR test
V
SS
< V
CM
< V
DD
V
DD
= 2.7V to 5.5V
V
SHDN
< 0V, R
L
= 200Ω (Note 3)
V
SS
+ 0.2V < V
DD
- 0.2V
R
L
= 32Ω, T
A
= +85°C
Output Voltage Swing
V
OUT
R
L
= 200Ω
R
L
= 2kΩ
I
L
= 10mA
Output Voltage
I
L
= 30mA,
T
A
= -40°C
to +85°C
V
DD
= 2.7V
R
L
= 2kΩ
R
L
= 200Ω
V
DD
- V
OH
V
OL
- V
SS
V
DD
- V
OH
V
OL
- V
SS
V
DD
- V
OH
V
OL
- V
SS
V
DD
- V
OH
V
OL
- V
SS
V
DD
- V
OH
V
DD
= 5V
V
OL
- V
SS
370
76
67
650
650
150
150
20
20
250
230
400
mV
mV
V
SS
46
70
150
±3
V
DD
CONDITIONS
Inferred from PSRR test
MIN
2.7
TYP
MAX
5.5
±8
UNITS
V
mV
µV/°C
V
dB
dB
mV
dB
_______________________________________________________________________________________
3
High-Output-Drive, 10MHz, 10V/µs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
MAX4230–MAX4234
DC ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 2.7V, V
SS
= 0V, V
CM
= V
DD
/2, V
OUT
= (V
DD
/2), R
L
=
∞
connected to (V
DD
/2), V
SHDN
= V
DD
,
T
A
= -40 to +125°C,
unless other-
wise noted.) (Note 2)
PARAMETER
Quiescent Supply Current
(per Amplifier)
Shutdown Supply Current
(per Amplifier) (Note 3)
SHDN
Logic Threshold (Note 3)
SYMBOL
I
DD
I
DD(SHDN)
V
IL
V
IH
CONDITIONS
V
DD
= 5.5V, V
CM
= V
DD
/2
V
DD
= 2.7V, V
CM
= V
DD
/2
V
SHDN
< 0V, R
L
=
∞
Shutdown mode
Normal mode
V
DD
x 0.61
V
DD
= 5.5V
V
DD
= 2.7V
MIN
TYP
MAX
2.8
2.5
2.0
2.0
0.8
UNITS
mA
µA
V
AC ELECTRICAL CHARACTERISTICS
(V
DD
= 2.7V, V
SS
= 0V, V
CM
= V
DD
/2, V
OUT
= (V
DD
/2), R
L
=
∞
connected to (V
DD
/2), V
SHDN
= V
DD
,
T
A
= +25°C,
unless otherwise noted.)
(Note 2)
PARAMETER
Gain-Bandwidth Product
Full-Power Bandwidth
Slew Rate
Phase Margin
Gain Margin
Total Harmonic Distortion Plus
Noise
Input Capacitance
Voltage-Noise Density
Channel-to-Channel Isolation
Capacitive-Load Stability
Shutdown Time
Enable Time from Shutdown
Power-Up Time
t
SHDN
t
ENABLE
t
ON
SYMBOL
GBWP
FPBW
SR
PM
GM
THD+N
C
IN
e
n
f = 1kHz
f = 10kHz
f = 1kHz, R
L
= 100kΩ
A
VCL
= 1V/V, no sustained oscillations
(Note 3)
(Note 3)
f = 10kHz, V
OUT
= 2V
P-P
, A
VCL
= 1V/V
V
CM
= V
DD
/2
V
OUT
= 2V
P-P
, V
DD
= 5V
CONDITIONS
MIN
TYP
10
0.8
10
70
15
0.0005
8
15
12
125
780
1
1
5
MAX
UNITS
MHz
MHz
V/µs
Degrees
dB
%
pF
nV/√Hz
dB
pF
µs
µs
µs
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.
4
_______________________________________________________________________________________
High-Output-Drive, 10MHz, 10V/µs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
__________________________________________Typical Operating Characteristics
(V
DD
= 2.7V, V
SS
= 0V, V
CM
= V
DD
/2, V
OUT
= V
DD
/2, R
L
=
∞,
connected to V
DD
/2, V
SHDN
= V
DD
, T
A
= +25°C, unless otherwise noted.)
GAIN AND PHASE vs. FREQUENCY
(C
L
= 250pF)
120
90
60
PHASE (DEGREES)
30
0
-30
-60
-90
-120
A
V
= 1000V/V
1k
10k
100k
1M
-150
-180
10M 100M
70
60
50
40
GAIN (dB)
30
20
10
0
-10
-20
A
V
= 1000V/V
C
L
= 250pF
1k
10k
100k
1M
MAX4230–MAX4234
GAIN AND PHASE vs. FREQUENCY
70
60
50
40
GAIN (dB)
30
20
10
0
-10
-20
MAX4230 toc01
MAX4230 toc02
120
90
60
PHASE (DEGREES)
30
0
-30
-60
-90
-120
-150
-30
0.01k 0.1k
-30
0.01k 0.1k
-180
10M 100M
FREQUENCY (Hz)
FREQUENCY (Hz)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX4230 toc03
OUTPUT IMPEDANCE vs. FREQUENCY
MAX4230 toc04
0
-10
-20
-30
PSRR (dB)
-40
-50
-60
-70
-80
-90
-100
0.01k
0.1k
1k
10k
100k
A
V
= 1V/V
1000
OUTPUT IMPEDANCE (Ω)
100
10
1
0.1
A
V
= 1V/V
0.01
1M
10M
1k
10k
100k
FREQUENCY (Hz)
1M
10M
FREQUENCY (Hz)
SUPPLY CURRENT vs. TEMPERATURE
MAX4230 toc05
SUPPLY CURRENT vs. TEMPERATURE
(SHDN = LOW)
MAX4230 toc06
2.0
1.8
1.6
SUPPLY CURRENT (mA)
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)
110
100
SUPPLY CURRENT (nA)
90
80
70
60
50
-40 -20
0
20
40
60
80
100 120
TEMPERATURE (°C)
SHDN = V
SS
_______________________________________________________________________________________
5
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