MAX3271 Datasheet, PDF (4/8 Pages) Maxim Integrated Products – +3.3V, 2.5Gbps Low-Power Transimpedance Amplifier

+3.3V, 2.5Gbps Low-Power
Transimpedance Amplifier
Typical Operating Characteristics (continued)
(V_CC = +3.3V, C_IN = 0.85pF, T_A = +25°C, unless otherwise noted.)
DIFFERENTIAL OUTPUT REFLECTION
COEFFICIENT
0
-5
-10
-15
-20
-25
-30
-35
0
500 1000 1500 2000 2500 3000
FREQUENCY (MHz)
OUTPUT AMPLITUDE vs. TEMPERATURE
(INPUT = 1mAp-p)
400
350
300
250
200
150
100
50
0
-50 -25 0
25 50 75 100
JUNCTION TEMPERATURE (°C)
Pin Description
BOND PAD
1
2
3
4, 5
6, 9
7
8
NAME
FILTER
N.C.
IN
V_CC
GND
OUT+
OUT-
FUNCTION
Provides bias voltage for the photodiode through a 750Ω resistor to V_CC. When grounded, this pin
disables the DC-cancellation amplifier to allow a DC path from IN to OUT+ and OUT- for testing.
No Connection. Leave unconnected.
TIA Input
Power Supply. Both pads must be connected to supply. Bond pad 4 supplies power to the
transimpedance stage. Bond pad 5 supplies power to the remaining circuitry.
Ground. Both pads must be connected to ground. Bond pad 9 is ground for the transimpedance stage.
Bond pad 6 is ground for the remaining circuitry.
Noninverted Data Output. Current flowing into IN causes V_OUT+ to increase.
Inverted Data Output. Current flowing into IN causes V_OUT- to decrease.
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