OPA695 Datasheet, PDF (1/32 Pages) Texas Instruments – Ultra-Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable

OPA695
OPA695
OPA695
SBOS293B – DECEMBER 2003 – REVISED MARCH 2004
Ultra-Wideband, Current-Feedback
OPERATIONAL AMPLIFIER With Disable
FEATURES
q GAIN = +2 BANDWIDTH (1400MHz)
q GAIN = +8 BANDWIDTH (450MHz)
q OUTPUT VOLTAGE SWING: ±4.2V
q ULTRA-HIGH SLEW RATE: 4300V/µs
q 3RD-ORDER INTERCEPT: > 40dBm (f < 50MHz)
q LOW POWER: 129mW
q LOW DISABLED POWER: 0.5mW
APPLICATIONS
q VERY WIDEBAND ADC DRIVER
q LOW-COST PRECISION IF AMPLIFIER
q BROADBAND VIDEO LINE DRIVER
q PORTABLE INSTRUMENTS
q ACTIVE FILTERS
q ARB WAVEFORM OUTPUT DRIVER
q OPA685 PERFORMANCE UPGRADE
DESCRIPTION
The OPA695 is a very high bandwidth, current-feedback op
amp that combines exceptional 4300V/µs slew rate and low
input voltage noise to deliver a precision low cost, high
dynamic range Intermediate Frequency (IF) amplifier. Opti-
mized for high gain operation, the OPA695 is ideally suited to
buffering Surface Acoustic Wave (SAW) filters in an IF strip
or delivering high output power at low distortion for cable
modem upstream line drivers. Even higher bandwidth at
lower gains gives a 1400MHz video line driver for high
resolution RGB.
The OPA695’s low 12.9mA supply current is precisely
trimmed at +25°C. This trim, along with a low temperature
drift, gives low system power over temperature. System
power may be further reduced using the optional disable
control pin. Leaving this pin open, or holding it HIGH, gives
normal operation. If pulled LOW, the OPA695 supply current
drops to less than 170µA. This power-saving feature, along
with exceptional single +5V operation and ultra-small
SOT23-6 packaging, make the OPA695 ideal for portable
applications.
OPA695 RELATED PRODUCTS
SINGLES
OPA658
OPA691
OPA692
OPA693
DUALS
OPA2658
OPA2691
THS3202
—
+5V
V_IN
75Ω
OPA695
75Ω
V_LOAD
RG-59
75Ω
511Ω
GAIN OF +2V/V VIDEO LINE DRIVER
PULSE RESPONSE
1.2
125MHz Input
1
Voltage at
Matched Load
0.8
0.6
0.4
511Ω _−5V
0.2
Gain 2V/V Video Line Driver
0
−0.2
Time (1ns/div)
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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