MAX4142ESD ,250MHz / Low-Power / High-Output-Current / Differential Line DriverELECTRICAL CHARACTERISTICS(V = +5V, V = -5V, SHDN = 0, R = ¥ , T = T to T , unless otherwise noted. ..
MAX4144EEE ,High-Speed / Low-Distortion / Differential Line ReceiversApplications' 800V/µs Slew RateDifferential to Single-Ended Conversion' 90dB CMR at 10MHzTwisted-Pa ..
MAX4144EEE ,High-Speed / Low-Distortion / Differential Line Receiversapplications.' 800µA ShutdownFor a complete differential transmission link, use theMAX4146:MAX4144/ ..
MAX4144ESD ,High-Speed / Low-Distortion / Differential Line ReceiversGeneral Description ________
MAX4144ESD-T ,High-Speed, Low-Distortion, Differential Line ReceiversApplications♦ 800V/µs Slew RateDifferential to Single-Ended Conversion♦ 90dB CMR at 10MHzTwisted-Pa ..
MAX4145EEE ,High-Speed / Low-Distortion / Differential Line ReceiversMAX4144/MAX4145/MAX414619-1147; Rev 1; 1/98High-Speed, Low-Distortion, Differential Line Receivers_ ..
MAX795TCSA+ ,3.0V/3.3V Adjustable Microprocessor Supervisory Circuits
MAX795TESA ,Microprocessor supervisory circuit. Reset threshold 3.00V to 3.15V. Active-low reset. Backup-battery switchover. External switch driver. Chip-enable gating.
MAX795TESA+ ,3.0V/3.3V Adjustable Microprocessor Supervisory Circuits
MAX796 ,Step-Down Controllers with Synchronous Rectifier for CPU PowerApplicationsLX(SECFB) SKIP 215BSTREF 3Notebook and Subnotebook Computers 14GND4 MAX796 DL13PDAs and ..
MAX796CPE ,Step-Down Controllers with Synchronous Rectifier for CPU PowerELECTRICAL CHARACTERISTICS(V+ = 15V, GND = PGND = 0V, I = I = 0A, T = 0°C to +70°C for MAX79_C, T = ..
MAX796CSE ,Step-Down Controllers with Synchronous Rectifier for CPU PowerApplications(SECFB) SKIP 2 LX15REF BSTNotebook and Subnotebook Computers 3 14GND DL4 MAX796 13PDAs ..
MAX4142ESD
250MHz / Low-Power / High-Output-Current / Differential Line Driver
General DescriptionThe 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 (AV= +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 100Ωload 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.
________________________ApplicationsVideo Twisted-Pair Driver
Differential Pulse Amplifier
High-Speed Instrumentation Amplifier
Low-Noise Differential Receivers
Differential ADC Driver
____________________________Features250MHz -3dB Bandwidth (AV= +2V/V)1400V/µs Slew Rate 67dB at 10MHz CMR0.01%/0.01°Differential Gain/Phase±6V Differentially into 100ΩOutput Drive1mA Shutdown Capability12.5mA Quiescent Supply CurrentAvailable in 14-Pin Narrow SO Package
MAX4142
250MHz, Low-Power,
High-Output-Current, Differential Line Driver
Typical Application Circuit
Pin Configuration
MAX4142
250MHz, Low-Power, High-Output-Current,
Differential Line Driver
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS(VCC= +5V, VEE= -5V, SHDN = 0, RL= ¥, TA= TMINto TMAX, unless otherwise noted. Typical values specified at TA= +25°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.
Supply Voltage (VCCto VEE)................................................+12V
Voltage on Any Pin to Ground..........(VEE- 0.3V) to (VCC+ 0.3V)
Input Current (IN_)............................................................±10mA
Short-Circuit Duration (VOUTto GND)................................10sec
Continuous Power Dissipation (TA= +70°C)
Plastic SO (derate 8.3mW/°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
MAX4142
250MHz, Low-Power, High-Output-Current,
Differential Line Driver
AC ELECTRICAL CHARACTERISTICS
__________________________________________Typical Operating Characteristics(VCC= +5V, VEE= -5V, SHDN = 0, RL= 150Ωdifferential, TA = +25°C, unless otherwise noted.)
MAX4142
250MHz, Low-Power, High-Output-Current,
Differential Line Driver
_____________________________Typical Operating Characteristics (continued)(VCC= +5V, VEE= -5V, SHDN = 0, RL= 150Ωdifferential, TA = +25°C, unless otherwise noted.)
MAX4142
250MHz, Low-Power, High-Output-Current,
Differential Line Driver
_____________________________Typical Operating Characteristics (continued)(VCC= +5V, VEE= -5V, SHDN = 0, RL= 150Ωdifferential, TA = +25°C, unless otherwise noted.)
MAX4142
250MHz, Low-Power, High-Output-Current,
Differential Line Driver
Detailed DescriptionThe MAX4142 differential line driver features 250MHz
bandwidth and 67dB common-mode rejection (CMR) at
10MHz. This part achieves a 1400V/µs slew rate, and
power dissipation is only 125mW. The MAX4142 has an
internally set +2V/V closed-loop gain, making it ideal as
a back-terminated line driver. The output stage can
drive ±6V into a 100Ωload.
The MAX4142 utilizes a three-amplifier topology to pro-
vide differential inputs/outputs and common-mode
feedback (Figure 1), making it ideal for applications
with high common-mode noise, such as for driving T1
or xDSL transmissions over a twisted-pair cable. The
MAX4142’s differential noninverting structure uses two
noninverting amplifiers (A1 and A2) to provide a single
device with differential inputs and outputs. The use of
two amplifiers effectively doubles the output voltage
swing and bandwidth, and improves slew rate when
compared to the single op-amp differential amplifier.
Excellent gain and phase, along with low noise, also
make the MAX4142 suitable for video applications and
RF-signal processing.
For a complete differential transmission link, use the
MAX4142 line driver with the MAX4144/MAX4146 line
receivers, as shown in the Typical Application Circuit.
Applications Information
Balanced Transmission LinesDifferential (balanced) transmission lines use two con-
ductors to transmit high-speed signals over low-cost
cable or twisted-pair wire with minimal signal degrada-
tion. The transmit side of the balanced transmission line
is driven by an amplifier with differential outputs, while
the signal is received by an amplifier with differential
inputs. In an ideal balanced system, each conductor
has the same impedance from input to output and from
the conductor to the system ground. Since the imped-
ance from each conductor to ground is equivalent, any
noise or other interference coupled into the transmis-
sion line will be equal in magnitude in each conductor,
appearing as a common-mode signal to the amplifier at
the receiving end of the transmission line. Since the
receiving amplifier subtracts the signals on each side
of the transmission line to obtain the desired informa-
tion, common-mode signals are effectively canceled
out by the receiving amplifier.
Common-Mode Feedback In nonideal balanced systems, impedance mismatches
between the conductors of a transmission line can
degrade system common-mode rejection (CMR) by
converting a portion of any common-mode signal to a
_____________________Pin DescriptionFigure 1. MAX4142 Functional Diagram
