19-1147; Rev 3; 3/09
KIT
ATION
EVALU
E
BL
AVAILA
High-Speed, Low-Distortion,
Differential Line Receivers
____________________________Features
MAX4144:
o
+2V/V Internally Fixed Gain
o
130MHz Bandwidth
o
1000V/μs Slew Rate
o
70dB CMR at 10MHz
o
-90dBc SFDR (f = 10kHz)
o
Low Differential Gain/Phase: 0.03%/0.03°
o
800μA Shutdown
MAX4145:
o
External Gain Selection from +1V/V to +10V/V
o
180MHz Bandwidth
o
90MHz 0.1dB Gain Flatness
o
600V/μs Slew Rate
o
75dB CMR at 10MHz
o
-92dBc SFDR (f = 10kHz)
o
Very Low Noise: 3.8nV/√Hz (G = +10V/V)
o
800μA Shutdown
MAX4146:
o
External Gain Selection from +10V/V to +100V/V
o
70MHz Bandwidth (A
V
= +10V/V)
o
800V/μs Slew Rate
o
90dB CMR at 10MHz
o
-82dBc SFDR (f = 10kHz)
o
Very Low Noise: 3.45nV/√Hz (G = +100V/V)
o
800μA Shutdown
________________General Description
The MAX4144/MAX4145/MAX4146 differential line
receivers offer unparalleled high-speed, low-distortion
performance. Using a three op-amp instrumentation
amplifier architecture, these ICs have fully symmetrical
differential inputs and a single-ended output. They
operate from ±5V power supplies and are capable of
driving a 150Ω load to ±3.7V. The MAX4144 has an
internally set closed-loop gain of +2V/V. The MAX4145
is optimized for gains from +1V/V to +10V/V, while the
MAX4146 is optimized for gains from +10V/V to
+100V/V. The MAX4145/MAX4146 require a single
external resistor to set the closed-loop gain.
These amplifiers use laser-trimmed, matched thin-film
resistors to deliver a common-mode rejection (CMR) of
up to 90dB at 10MHz. Using current-feedback tech-
niques, the MAX4144 achieves a 130MHz bandwidth
and a 1000V/µs slew rate. The MAX4145 achieves a
bandwidth of 180MHz and a slew rate of 600V/µs while
operating with a closed-loop gain of +1V/V, and the
MAX4146 features a bandwidth of 70MHz and a slew
rate of 800V/µs with a gain of +10V/V. Excellent differ-
ential gain/phase and noise specifications make these
amplifiers ideal for a wide variety of video and RF
signal-processing applications.
For a complete differential transmission link, use the
MAX4144/MAX4145/MAX4146 with the MAX4147 differ-
ential line driver (see the MAX4147 data sheet for more
information).
MAX4144/MAX4145/MAX4146
________________________Applications
Differential to Single-Ended Conversion
Twisted-Pair to Coaxial Converter
High-Speed Instrumentation Amplifier
Data Acquisition
Medical Instrumentation
High-Speed Differential Line Receiver
_______________Ordering Information
PART
MAX4144ESD
MAX4144EEE
MAX4145ESD
MAX4145EEE
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
14 SO
16 QSOP
14 SO
16 QSOP
14 SO
16 QSOP
Pin Configurations appear at end of data sheet.
Typical Application Circuit appears at end of data sheet.
MAX4146ESD
MAX4146EEE
________________________________________________________________
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-Speed, Low-Distortion,
Differential Line Receivers
MAX4144/MAX4145/MAX4146
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
CC
to V
EE
) ..................................................12V
Voltage on IN_, SHDN, REF, OUT,
SENSE, RG_.................................(V
EE
- 0.3V) to (V
CC
+ 0.3V)
Short-Circuit Duration to Ground ........................................10sec
Input Current (IN_, RG_)...................................................±10mA
Output Current................................................................±120mA
Continuous Power Dissipation (T
A
= +70°C)
14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW
16-Pin QSOP (derate 8.33mW/°C above +70°C).........667mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
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
CC
= +5V, V
EE
= -5V, SHDN = 0V, R
L
=
∞,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Operating Supply Voltage
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current
Input Offset Current
Input Capacitance
Differential Input Resistance
Differential Input Voltage Range
Common-Mode Input Voltage
Range
Gain
V
OS
TC
VOS
I
B
I
OS
C
IN
R
IN
MAX4144
R
L
= 150Ω
MAX4145
MAX4146
V
CM
Guaranteed by CMR test
-1V
≤
V
OUT
≤
+1V,
R
L
= 150Ω
MAX4144
Gain Error
-1V
≤
V
OUT
≤
+1V,
R
L
= 150Ω
MAX4145
MAX4146
-1V
≤
V
OUT
≤
+1V,
R
L
= 150Ω
CMR
PSR
I
SHDN
V
CM
= ±2.8V
V
S
= ±4.5V to ±5.5V
V
SHDN
≥
2V
MAX4144
Shutdown Output Impedance
V
SHDN
≥
2V
R
L
= 100Ω
Output Voltage Swing
V
OUT
R
L
= 150Ω
R
L
=
∞
2
±3.1
±3.4
MAX4145
MAX4146
MAX4144
MAX4145
MAX4146
A
V
= 2V/V
A
V
= 1V/V
A
V
= 10V/V
A
V
= 10V/V
A
V
= 100V/V
MAX4144
MAX4145
MAX4146
60
70
-1.55
-2.8/G
-3.1/G
-2.8
2
1 + (1.4kΩ/R
G
)
10 + (14kΩ/R
G
)
0.02
0.5
1.5
0.5
1.5
20
5 + 15G
14 + 0.9G
80
85
11
0.8
1.4
1.4
2
±3.6
±3.7
±3.8
V
kΩ
16
2
dB
dB
mA
mA
ppm/°C
2
3
5
3
5
%
V/V
SYMBOL
V
IN
= 0V
V
IN
= 0V
V
IN
= 0V
V
IN
= 0V
CONDITIONS
Guaranteed by PSR test
MIN
±4.5
0.6
5
9
0.1
1
1
1.55
2.8/G
3.1/G
2.8
V
V
30
3
TYP
MAX
±5.5
9
UNITS
V
mV
µV/°C
µA
µA
pF
MΩ
A
V
Gain Drift
Common-Mode Rejection
Power-Supply Rejection
Quiescent Supply Current
Shutdown Supply Current
_______________________________________________________________________________________
High-Speed, Low-Distortion,
Differential Line Receivers
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V, V
EE
= -5V, SHDN = 0V, R
L
=
∞,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Output Current Drive
SHDN High Threshold
SHDN Low Threshold
SHDN Input Bias Current
SYMBOL
I
OUT
V
IH
V
IL
I
SHDN
V
SHDN
≤
0.8V
V
SHDN
≥
2V
0.8
75
0.06
150
2
V
OUT
= ±1.7V
CONDITIONS
0°C
≤
T
A
≤
+85°C
-40°C
≤
T
A
≤
0°C
MIN
70
40
2
TYP
100
MAX
UNITS
mA
V
V
µA
MAX4144/MAX4145/MAX4146
AC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, SHDN = 0V, R
L
= 150Ω, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
V
OUT
≤
0.1V
RMS
CONDITIONS
MAX4144
-3dB Bandwidth
BW
(-3dB)
MAX4145
MAX4146
MAX4144
Full-Power Bandwidth
FPBW
V
OUT
=
2V
P-P
MAX4145
MAX4146
MAX4144
MAX4145
MAX4146
MAX4144
Input Voltage Noise Density
Input Current Noise Density
Common-Mode Rejection
e
n
i
n
CMR
f = 1MHz
f = 1MHz
MAX4144
f = 10MHz
MAX4145
MAX4146
MAX4144
Slew Rate
SR
-2V
≤
V
OUT
≤
+2V
MAX4145
MAX4146
MAX4144
to 0.1%
Settling Time to 0.1%
t
S
-2V
≤
V
OUT
≤
+2V
to 0.01%
Enable Time from Shutdown
Disable Time to Shutdown
MAX4144
Differential Gain (Note 1)
DG
f = 3.58MHz
MAX4145
MAX4146
MAX4145
MAX4146
MAX4144
MAX4145
MAX4146
MAX4145
MAX4146
A
V
= 2V/V
A
V
= 1V/V
A
V
= 10V/V
A
V
= 100V/V
A
V
= 2V/V
A
V
= 1V/V
A
V
= 10V/V
A
V
= 100V/V
A
V
= 2V/V
A
V
= 1V/V
A
V
= 10V/V
MIN
TYP
130
180
70
30
110
180
70
30
30
90
50
12
1.8 + (20/G)
2.1 + (135/G)
1.7
70
75
90
1000
600
800
23
20
17
36
38
40
45
40
0.03
0.01
0.12
3
%
ns
µs
ns
V/µs
dB
pA/√Hz
nV/√Hz
MHz
MHz
MHz
MAX
UNITS
0.1dB Bandwidth
BW
(0.1dB)
V
OUT
≤
0.1V
RMS
_______________________________________________________________________________________
High-Speed, Low-Distortion,
Differential Line Receivers
MAX4144/MAX4145/MAX4146
AC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V, V
EE
= -5V, SHDN = 0V, R
L
= 150Ω, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Differential Phase (Note 1)
SYMBOL
DP
f = 3.58MHz
CONDITIONS
MAX4144
MAX4145
MAX4146
MAX4144
f = 10kHz,
V
OUT
= 2V
P-P
Spurious-Free Dynamic Range
SFDR
f = 5MHz,
V
OUT
= 2V
P-P
MAX4145
MAX4146
MAX4144
MAX4145
MAX4146
A
V
= 2V/V
A
V
= 1V/V
A
V
= 10V/V
A
V
= 2V/V
A
V
= 1V/V
A
V
= 10V/V
MIN
TYP
0.03
0.06
0.07
-90
-92
-82
-66
-67
-48
dBc
Degrees
MAX
UNITS
Note 1:
Differential gain and phase are tested using a modulated ramp, 100 IRE (0.714V).
__________________________________________Typical Operating Characteristics
(V
CC
= +5V, V
EE
= -5V, SHDN = 0V, R
L
= 150Ω, T
A
= +25°C, unless otherwise noted.)
MAX4144
SMALL-SIGNAL GAIN
vs. FREQUENCY (A
V
= +2)
MAX4144/6 TOC-01
MAX4145
SMALL-SIGNAL GAIN
vs. FREQUENCY (A
V
= +1)
MAX4144/6 TOC-02
MAX4146 SMALL-SIGNAL GAIN
vs. FREQUENCY (A
V
= +10)
4
3
NORMALIZED GAIN (dB)
2
1
0
-1
-2
-3
-4
-5
V
OUT
= 100mV
RMS
MAX4144/6 TOC-03
5
4
3
NORMALIZED GAIN (dB)
2
V
OUT
= 100mV
RMS
4
3
2
1
GAIN (dB)
0
-1
-2
-3
-4
-5
-6
V
OUT
= 100mV
RMS
5
1
0
-1
-2
-3
-4
-5
100k
1M
10M
FREQUENCY (Hz)
100M
1G
100k
1M
10M
FREQUENCY (Hz)
100M
1G
0.1
1
10
FREQUENCY (Hz)
100
1000
MAX4146
SMALL-SIGNAL GAIN
vs. FREQUENCY (A
V
= +100)
4
3
NORMALIZED GAIN (dB)
2
1
0
-1
-2
-3
-4
-5
100k
1M
10M
FREQUENCY (Hz)
100M
1G
V
OUT
= 100mV
RMS
MAX4144/4146-04
MAX4144
0.1dB GAIN FLATNESS vs.
FREQUENCY (A
V
= +2)
MAX444/46 TOC05
MAX4145
0.1dB GAIN FLATNESS vs.
FREQUENCY (A
V
= +1)
0.4
0.3
NORMAILIZED GAIN (dB)
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
V
OUT
= 100mV
RMS
MAX4144/46 TOC06a
5
0.5
0.4
0.3
NORMALIZED GAIN (dB)
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
100k
1M
10M
FREQUENCY (Hz)
100M
V
OUT
= 100mV
RMS
0.5
1G
100k
1M
10M
FREQUENCY (Hz)
100M
1G
4
_______________________________________________________________________________________
High-Speed, Low-Distortion,
Differential Line Receivers
_____________________________Typical Operating Characteristics (continued)
(V
CC
= +5V, V
EE
= -5V, SHDN = 0V, R
L
= 150Ω, T
A
= +25°C, unless otherwise noted.)
MAX4146 0.1dB GAIN FLATNESS
vs. FREQUENCY (A
V
= +10)
MAX4144/46 TOC06
MAX4144/MAX4145/MAX4146
MAX4144
LARGE-SIGNAL GAIN
vs. FREQUENCY (A
V
= +2)
4
3
NORMALIZED GAIN (dB)
2
1
0
-1
-2
-3
-4
-5
V
OUT
= 2V
P-P
MAX4144/4146-07
MAX4145
LARGE-SIGNAL GAIN
vs. FREQUENCY (A
V
= +1)
3
2
NORMALIZED GAIN (dB)
1
0
-1
-2
-3
-4
-5
-6
V
OUT
= 2V
P-P
MAX4144/46 TOC-8
0.5
0.4
0.3
NORMALIZED GAIN (dB)
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
0.1
1
10
FREQUENCY (Hz)
100
V
OUT
= 100mV
RMS
5
4
1000
100k
1M
10M
FREQUENCY (Hz)
100M
1G
100k
1M
10M
FREQUENCY (Hz)
100M
1G
MAX4146 SMALL-SIGNAL GAIN
vs. FREQUENCY (A
V
= +10)
MAX4144/6 TOC-09
MAX4146
LARGE-SIGNAL GAIN
vs. FREQUENCY (A
V
= +100)
2
1
NORMALIZED GAIN (dB)
0
-1
-2
-3
-4
-5
-6
-7
V
OUT
= 2V
P-P
MAX4144/4146-10
4
3
NORMALIZED GAIN (dB)
2
1
0
-1
-2
-3
-4
-5
0.1
V
OUT
= 2V
P-P
IN
VOLTAGE (20mV/div)
OUT
1
10
FREQUENCY (Hz)
100
1,000
100k
1M
10M
FREQUENCY (Hz)
100M
1G
TIME (10ns/div)
MAX4145
SMALL-SIGNAL
PULSE RESPONSE (A
V
= +1)
IN
VOLTAGE (50mV/div)
VOLTAGE (20mV/div)
1mV/div
IN
MAX4144 toc14
MAX4144/4146 toc12
MAX4146
SMALL-SIGNAL
PULSE RESPONSE (A
V
= +10)
MAX4146
SMALL-SIGNAL
PULSE RESPONSE (A
V
= +100)
GND
MAX4144 toc13
GND
IN
GND
VOLTAGE
OUT
20mV/div
GND
OUT
GND
OUT
GND
TIME (10ns/div)
TIME (10ns/div)
TIME (10ns/div)
_______________________________________________________________________________________
MAX4144 toc11
5
MAX4144
SMALL-SIGNAL
PULSE RESPONSE (A
V
= +2)
3
GND
GND
5
传感器
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