Maxim MAX4005CSA Datasheet

19-0315; Rev 0; 10/94
950MHz FET-Input Buffer with 75ΩOutput
_______________General Description
The MAX4005 is a ±5V, single-ended unity-gain buffer with a high-impedance JFET input, intended to drive a 75load. A 75thin-film output resistor is included on­board to minimize reflections when driving a 75load through a transmission line of arbitrary length. Gain in this configuration is 0.5.
________________________Applications
and Low-Impedance Instrument Remote Signal Sensing Impedance Transformation Fanout Multiplier for 75Distribution Systems
____________________________Features
950MHz Bandwidth350ps Rise/Fall Times0.11%/0.03° Differential Gain/Phase Error1000V/µs Slew Rate10pA Input Bias Current75Output Impedance
______________Ordering Information
PART
MAX4005CSA
TEMP. RANGE PIN-PACKAGE
0°C to +70°C
8 SO
MAX4005
__________Typical Operating Circuit
-5V
INPUT
+5V
1
MAX4005
2 3
4
________________________________________________________________
8
7 6
5
N.C.
-5V
Z = 75
+5V
R
L
OUT
= 75
__________________Pin Configuration
TOP VIEW
1
V
EE
2
GND
V
IN
CC
MAX4005
3 4
Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
SO
8
V
EE
7
PEAK
6
OUT
5
V
CCO
1
950MHz FET-Input Buffer with 75ΩOutput
ABSOLUTE MAXIMUM RATINGS
Input Voltage.......................................................................±2.5V
Supply Voltage............................................................+5.5V
V
CC
Output-Stage Supply .........................................................+5.5V
Supply Voltage..............................................................-5.5V
V
EE
Peaking Pad Voltage.............................................................0.0V
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.
Ground Voltage.....................................................................0.0V
Continuous Power Dissipation (T
Operating Temperature Range...............................0°C to +70°C
Lead Temperature (soldering, 10sec).............................+300°C
= +70°C)...................471mW
A
MAX4005
ELECTRICAL CHARACTERISTICS
(VCC= 4.75V to 5.25V, VEE= -4.75V to -5.25V, TA= +25°C, stated performance characterized for TA= 0°C to +70°C, unless otherwise noted.)
CONDITIONS
+5V VCCCurrent +5V Output Stage Quiescent Current
-5V VEECurrent
Output Resistance Input Current
+5V Output Stage Power-Supply Rejection Ratio
TYPICAL OPERATING PERFORMANCE (VCC= 5.0V, VEE= -5.0V, RL= 75, TA= +25°C, unless otherwise noted.)
Input Capacitance Settling Time to 0.1% Rise/Fall Times
Overdrive Recovery Time
VCC1 VCC2
VEE
OUT
BWBandwidth
SET
RISE/tFALL
OD
VIN= 0V, RL= 75
= 0V, RL= 75
V
IN
VIN= 0V, RL= 75 RL= 75, gain = 0.5
VIN= 0V
B
RL= 75 RL= 75, measured over input
dynamic range RL= 75, gain = 0.5
VIN= 0V, RL= 75 VIN= 0V, RL= 75 VIN= 0V, RL= 75
-3dB
-6dB 2000
IN
VIN= 0.25V step, V VIN= 0.25V step with < 30ps rise time ps350t At 30MHz dB±0.01GFGain Flatness
VIN= 2.5V step with 200ps rise time V/µs1000SRSlew Rate VIN= 2.5V step ns5t At 50MHz dBc-502HD2nd Harmonic Distortion At 50MHz dBc< -603HD3rd Harmonic Distortion At 100MHz dBm28TOI3rd-Order Intercept At 3.58MHz %0.11DGDifferential Gain Error At 3.58MHz degrees0.03DPDifferential Phase Error
OUT
= 0.125V step ns2t
0.49 0.50 0.51Gain
950
UNITSMIN TYP MAXSYMBOLPARAMETER
MHz
MHz60GF1Gain Flatness ±0.1dB MHz80GF2Gain Flatness ±0.2dB
mA91419I mA91114I mA17 24 31I mV-3 3Output Offset Voltage
74.0 75.0 76.5R
nA-1 0.01 1I
%0.50 1Linearity
V-1.3 1.6Input Dynamic Range
dB40 55+5V VCCPower-Supply Rejection Ratio dB50 75 dB40 60-5V VEEPower-Supply Rejection Ratio
pF2.2C
2 _______________________________________________________________________________________
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