MAX4142 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – 250MHz, Low-Power, High-Output-Current, Differential Line Driver

19-4763; Rev 0; 7/98
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250MHz, Low-Power,
High-Output-Current, Differential Line Driver
General Description
The MAX4142 differential line driver combines high-
speed performance with fully symmetrical differential
inputs and outputs. With an internally set +2V/V closed-
loop gain, the MAX4142 is ideal for driving back-
terminated cables and transmission lines.
This device utilizes laser-trimmed thin-film resistors and
common-mode cancellation circuitry to deliver an out-
standing 67dB at 10MHz common-mode rejection
(CMR). Using current-feedback techniques, the
MAX4142 achieves a 250MHz -3dB (A_V = +2V/V) band-
width, a 70MHz 0.1dB bandwidth, and a 1400V/µs slew
rate. Excellent differential gain/phase error and noise
specifications make this amplifier an excellent choice
for a wide variety of video and RF signal-processing
applications.
The MAX4142 operates from ±5V power supplies and
requires only 12.5mA of quiescent current. The output
stage is capable of driving a 100Ω load to ±6V (differ-
entially) or to ±3V (single-ended). The MAX4142 is
available in a space-saving 14-pin SO package. For a
pin-compatible, higher speed differential line driver,
see the MAX4147 data sheet.
________________________Applications
Video Twisted-Pair Driver
Differential Pulse Amplifier
High-Speed Instrumentation Amplifier
Low-Noise Differential Receivers
Differential ADC Driver
____________________________Features
o 250MHz -3dB Bandwidth (A_V = +2V/V)
o 1400V/µs Slew Rate
o 67dB at 10MHz CMR
o 0.01%/0.01° Differential Gain/Phase
o ±6V Differentially into 100Ω Output Drive
o 1mA Shutdown Capability
o 12.5mA Quiescent Supply Current
o Available in 14-Pin Narrow SO Package
Ordering Information
PART
MAX4142ESD
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
14 SO
Pin Configuration
TOP VIEW
V_EE 1
IN+ 2
N.C. 3
SHDN 4
N.C. 5
IN- 6
V_EE 7
MAX4142
14 V_CC
13 OUT+
12 SENSE+
11 GND
10 SENSE-
9 OUT-
8 VCC
SO
N.C. = NOT INTERNALLY CONNECTED
Typical Application Circuit
IN+
SENSE+
R_t
OUT+
MAX4142 _OUT-
GND
IN-
SENSE-
R_t
R_t
IN-
SENSE
MAX4144
IN+
75Ω
OUT
75Ω
COAX
R_t
REF
V_OUT
75Ω
TWISTED-PAIR TO COAX-CABLE CONVERTER
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