OPA2690 Datasheet, PDF (1/30 Pages) Burr-Brown (TI) – Dual, Wideband, Voltage-Feedback OPERATIONAL AMPLIFIER with Disable

OPA2690
SBOS238D − JUNE 2002 − REVISED DECEMBER 2004
Dual, Wideband, Voltage-Feedback
OPERATIONAL AMPLIFIER with Disable
FEATURES
D FLEXIBLE SUPPLY RANGE:
+5V to +12V Single Supply
±2.5V to ±6V Dual Supply
D WIDEBAND +5V OPERATION: 220MHz (G = 2)
D HIGH OUTPUT CURRENT: 190mA
D OUTPUT VOLTAGE SWING: ±4.0V
D HIGH SLEW RATE: 1800V/µs
D LOW SUPPLY CURRENT: 5.5mA/ch
D LOW DISABLED CURRENT: 100µA/ch
APPLICATIONS
D VIDEO LINE DRIVING
D xDSL LINE DRIVER/RECEIVER
D HIGH-SPEED IMAGING CHANNELS
D ADC BUFFERS
D PORTABLE INSTRUMENTS
D TRANSIMPEDANCE AMPLIFIERS
D ACTIVE FILTERS
+5V
100Ω
2kΩ
+2.5V
+2.5V
100pF
0.1µF +5V
1 /2
O PA2690
499Ω
2kΩ
REFB
REFT
0.1µF
499Ω
1kΩ
35Ω
IN
V_IN
499Ω
2.5V_CM
2V_PP
35Ω
1kΩ
10pF
AD S82 5
IN
10pF
10−Bit
40 M SP S
+2.5V
1 /2
O PA2690
499Ω
Clock
Single-Supply Differential ADC Driver
DESCRIPTION
The OPA2690 represents a major step forward in
unity-gain stable, voltage-feedback op amps. A new
internal architecture provides slew rate and full-power
bandwidth previously found only in wideband,
current-feedback op amps. A new output stage
architecture delivers high currents with a minimal
headroom requirement. These give exceptional
single-supply operation. Using a single +5V supply, the
OPA2690 can deliver a 1V to 4V output swing with over
120mA drive current and 150MHz bandwidth. This
combination of features makes the OPA2690 an ideal
RGB line driver or single-supply Analog-to-Digital
Converter (ADC) input driver.
The low 5.5mA/ch supply current of the OPA2690 is
precisely trimmed at +25°C. This trim, along with low
temperature drift, ensures lower maximum supply current
than competing products. System power may be reduced
further using the optional disable control pin. Leaving this
disable pin open, or holding it HIGH, will operate the
OPA2690I-14D normally. If pulled LOW, the
OPA2690I-14D supply current drops to less than
200µA/ch while the output goes to a high-impedance
state.
OPA2690 RELATED PRODUCTS
Voltage-Feedback
Current-Feedback
Fixed Gain
SINGLES
OPA2690
OPA691
OPA692
DUALS
OPA2680
OPA2691
—
TRIPLES
OPA3690
OPA3691
OPA3692
HARMONIC DISTORTION vs FREQUENCY
FOR THE SINGLE−SUPPLY ADC DRIVER
− 50
− 55 ^{2VPP Differential Output}
− 60
− 65
− 70
− 75
− 80
3rd−Harmonic
− 85
− 90
2nd−Harmonic
− 95
−100
1
10
20
Frequency (MHz)
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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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