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Электронный компонент: MAX4232AUA

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General Description
The MAX4230MAX4234 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/s and a gain-bandwidth product
(GBWP) of 10MHz. The MAX4230MAX4234 can drive
typical headset levels (32
), 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 the
6-pin SC70 package. The dual op-amp MAX4233 is
offered in the space-saving 10-bump UCSPTM, provid-
ing 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 (-40C to +125C).
Applications
RF PA Biasing Controls in Handset Applications
Portable/Battery-Powered Audio Applications
Portable Headphone Speaker Drivers (32
)
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
Features
o 30mA Output Drive Capability
o Rail-to-Rail Input and Output
o 1.1mA Supply Current per Amplifier
o 2.7V to 5.5V Single-Supply Operation
o 10MHz Gain-Bandwidth Product
o High Slew Rate: 10V/s
o 100dB Voltage Gain (R
L
= 100k
)
o 85dB Power-Supply Rejection Ratio
o No Phase Reversal for Overdriven Inputs
o Unity-Gain Stable for Capacitive Loads to 780pF
o Low-Power Shutdown Mode Reduces Supply
Current to <1A
o Available in 5-Pin SC70 Package (MAX4230)
o Available in 10-Bump UCSP Package (MAX4233)
MAX4230MAX4234
High-Output-Drive, 10MHz, 10V/s,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
________________________________________________________________ Maxim Integrated Products
1
19-2164; Rev 3; 2/03
Ordering Information continued at end of data sheet.
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.
Selector Guide appears at end of data sheet.
Pin Configurations appear at end of data sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
UCSP is a trademark of Maxim Integrated Products, Inc.
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
TOP
M ARK
MAX4230AXK-T
-40C to +125C
5 SC70-5
ACS
MAX4230AUK-T
-40C to +125C
5 SOT23-5
ABZZ
MAX4231AXT-T
-40C to +125C
6 SC70-6
ABA
MAX4231AUT-T
-40C to +125C
6 SOT23-6
AAUV
Typical Operating Circuit
MAX4231
DAC
PA
2.7V TO 5.5V
R
ISO
ANTENNA
I
OUT
= 30mA
C
LOAD
C
R
R
F
SHDN
MAX4230MAX4234
High-Output-Drive, 10MHz, 10V/s,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
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) ..................1s
Continuous Power Dissipation (T
A
= +70C)
5-Pin SC70 (derate 3.1mW/C above +70C) ..............247mW
5-Pin SOT23 (derate 7.1mW/C above +70C)............571mW
6-Pin SC70 (derate 3.1mW/C above +70C) ..............245mW
6-Pin SOT23 (derate 8.7mW/C above +70C) ...........696mW
8-Pin SOT23 (derate 8.9mW/C above +70C) ...........714mW
8-Pin MAX (derate 4.5mW/C above +70C) ............362mW
10-Pin MAX (derate 5.6mW/C above +70C) ..........444mW
10-Bump UCSP (derate 6.1mW/C above +70C) .....484mW
14-Pin TSSOP (derate 9.1mW/C above +70C) ........727mW
14-Pin SO (derate 8.3mW/C above +70C) ...............667mW
Operating Temperature Range .........................-40C to +125C
Junction Temperature ......................................................+150C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10s) .................................+300C
Note 1: Package power dissipation should also be observed.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Supply Voltage Range
V
DD
Inferred from PSRR test
2.7
5.5
V
All parts except MAX4232AKA
0.85
3
Input Offset Voltage
V
OS
MAX4232AKA
6
mV
Input Bias Current
I
B
V
CM
= V
SS
to V
DD
50
pA
Input Offset Current
I
OS
V
CM
= V
SS
to V
DD
50
pA
Input Resistance
R
IN
1000
M
Common-Mode Input Voltage
Range
V
CM
Inferred from CMRR test
V
SS
V
DD
V
Common-Mode Rejection Ratio
CMRR
V
SS
< V
CM
< V
DD
52
70
dB
Power-Supply Rejection Ratio
PSRR
V
DD
= 2.7V to 5.5V
73
85
dB
Shutdown Output Impedance
R
OUT
V
SHDN
= 0V (Note 3)
10
Output Voltage in Shutdown
V
OUT(SHDN)
V
SHDN
= 0V, R
L
= 200
(Note 3)
68
120
mV
R
L
= 100k
100
R
L
= 2k
85
98
Large-Signal Voltage Gain
A
VOL
V
SS
+ 0.20 < V
OUT
< V
DD
- 0.20V
R
L
= 200
74
80
dB
V
DD
- V
OH
400
500
R
L
= 32
V
OL
- V
SS
360
500
V
DD
- V
OH
80
120
R
L
= 200
V
OL
- V
SS
70
120
V
DD
- V
OH
8
14
Output Voltage Swing
V
OUT
R
L
= 2k
V
OL
- V
SS
7
14
mV
Output Source/Sink Current
V
OUT
= 0.15V to (V
DD
- 0.15V)
7
10
mA
V
DD
- V
OH
128
200
I
L
= 10mA
V
DD
= 2.7V
V
OL
- V
SS
112
175
V
DD
- V
OH
240
320
Output Voltage with Current Load
I
L
= 30mA
V
DD
= 5V
V
OL
- V
SS
224
300
mV
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
= +25C, unless otherwise
noted.) (Note 2)
MAX4230MAX4234
High-Output-Drive, 10MHz, 10V/s,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
_______________________________________________________________________________________
3
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
DD
= 5.5V, V
CM
= V
DD
/ 2
1.2
2.3
Quiescent Supply Current (per
Amplifier)
I
DD
V
DD
= 2.7V, V
CM
= V
DD
/ 2
1.1
2.0
mA
V
DD
= 5.5V
0.5
1
Shutdown Supply Current (per
Amplifier) (Note 3)
I
DD(SHDN)
V
S HDN
= 0V, R
L
=
V
DD
= 2.7V
0.1
1
A
Shutdown mode (Note 3)
V
SS
+ 0.3
SHDN Logic Threshold
Normal mode (Note 3)
V
DD
- 0.3
V
SHDN Input Bias Current
V
SS
< V
S HDN
< V
DD
(Note 3)
50
pA
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Supply Voltage Range
V
DD
Inferred from PSRR test
2.7
5.5
V
All parts except MAX4232AKA
5
Input Offset Voltage
V
OS
MAX4232AKA
8
mV
Offset Voltage Tempco
V
OS
/
T
3
V/C
Common-Mode Input Voltage
Range
V
CM
Inferred from CMRR test
V
SS
V
DD
V
Common-Mode Rejection Ratio
CMRR
V
SS
< V
CM
< V
DD
46
dB
Power-Supply Rejection Ratio
PSRR
V
DD
= 2.7V to 5.5V
70
dB
Output Voltage in Shutdown
V
OUT(SHDN)
V
SHDN
< 0V, R
L
= 200
(Note 3)
150
mV
R
L
= 2k
76
Large-Signal Voltage Gain
A
VOL
V
SS
+ 0.2V < V
DD
- 0.2V
R
L
= 200
67
dB
V
DD
- V
OH
650
R
L
= 32
, T
A
= +85
C
V
OL
- V
SS
650
V
DD
- V
OH
150
R
L
= 200
V
OL
- V
SS
150
V
DD
- V
OH
20
Output Voltage Swing
V
OUT
R
L
= 2k
V
OL
- V
SS
20
mV
Output Source/Sink Current
V
OUT
= 0.15V to (V
DD
- 0.15V)
4
mA
V
DD
- V
OH
250
I
L
= 10mA
V
DD
= 2.7V
V
OL
- V
SS
230
V
DD
- V
OH
400
Output Voltage with Current Load
I
L
= 30mA,
T
A
= -40
C
to +85
C
V
DD
= 5V
V
OL
- V
SS
370
mV
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
= +25C, unless otherwise
noted.) (Note 2)
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 +125C, unless oth-
erwise noted.) (Note 2)
MAX4230MAX4234
High-Output-Drive, 10MHz, 10V/s,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
4
_______________________________________________________________________________________
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Gain-Bandwidth Product
GBWP
V
CM
= V
DD
/2
10
MHz
Full-Power Bandwidth
FPBW
V
OUT
= 2V
P-P
, V
DD
= 5V
0.8
MHz
Slew Rate
SR
10
V/s
Phase Margin
PM
70
Degrees
Gain Margin
GM
15
dB
Total Harmonic Distortion Plus
Noise
THD+N
f = 10kHz, V
OUT
= 2V
P-P
, A
VCL
= 1V/V
0.0005
%
Input Capacitance
C
IN
8
pF
f = 1kHz
15
Voltage Noise Density
e
n
f = 10kHz
12
nV/
Hz
Channel-to-Channel Isolation
f = 1kHz, R
L
= 100k
125
dB
Capacitive-Load Stability
A
VCL
= 1V/V, no sustained oscillations
780
pF
Shutdown Time
t
SHDN
(Note 3)
1
s
Enable Time from Shutdown
t
ENABLE
(Note 3)
1
s
Power-Up Time
t
ON
5
s
Note 2: All units 100% tested at +25C. All temperature limits are guaranteed by design.
Note 3: SHDN logic parameters are for MAX4231/MAX4233 only.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
DD
= 5.5V, V
CM
= V
DD
/2
2.8
Quiescent Supply Current
(per Amplifier)
I
DD
V
DD
= 2.7V, V
CM
= V
DD
/2
2.5
mA
V
DD
= 5.5V
2.0
Shutdown Supply Current
(per Amplifier) (Note 3)
I
DD(SHDN)
V
SHDN
< 0V, R
L
=
V
DD
= 2.7V
2.0
A
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 +125C, unless oth-
erwise noted.) (Note 2)
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
= +25C, unless otherwise noted.)
(Note 2)
MAX4230MAX4234
High-Output-Drive, 10MHz, 10V/s,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
_______________________________________________________________________________________
5
GAIN AND PHASE vs. FREQUENCY
FREQUENCY (Hz)
0.01k
10k
100k
1M
10M
0.1k
1k
100M
GAIN (dB)
70
-30
-20
-10
0
10
20
30
60
50
40
-180
PHASE (DEGREES)
120
-150
-120
-90
-60
-30
0
90
60
30
MAX4230 toc01
A
V
= 1000V/V
GAIN AND PHASE vs. FREQUENCY
(C
L
= 250pF)
FREQUENCY (Hz)
0.01k
10k
100k
1M
10M
0.1k
1k
100M
GAIN (dB)
70
-30
-20
-10
0
10
20
30
60
50
40
-180
PHASE (DEGREES)
120
-150
-120
-90
-60
-30
0
90
60
30
MAX4230 toc02
A
V
= 1000V/V
C
L
= 250pF
0
0.4
0.2
0.8
0.6
1.2
1.0
1.4
1.8
1.6
2.0
-40
0
20
40
-20
60
80
100 120
SUPPLY CURRENT vs. TEMPERATURE
MAX4230 toc05
TEMPERATURE (
C)
SUPPLY CURRENT (mA)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
FREQUENCY (Hz)
0.01k
10k
100k
1M
0.1k
1k
10M
MAX4230 toc03
PSRR (dB)
0
-100
-90
-80
-70
-60
-50
-40
-10
-20
-30
A
V
= 1V/V
1000
100
10
1
0.1
0.01
1k
100k
1M
10k
10M
OUTPUT IMPEDANCE vs. FREQUENCY
MAX4230 toc04
FREQUENCY (Hz)
OUTPUT IMPEDANCE (
)
A
V
= 1V/V
50
60
70
80
90
100
110
-40
0
-20
20
40
60
80
100 120
MAX4230 toc06
TEMPERATURE (
C)
SUPPLY CURRENT (nA)
SUPPLY CURRENT vs. TEMPERATURE
(SHDN = LOW)
SHDN = V
SS
__________________________________________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
= +25C, unless otherwise noted.)