OPA690IDBVTG4 Datasheet, PDF (1/37 Pages) Texas Instruments – Wideband, Voltage-Feedback OPERATIONAL AMPLIFIER with Disable

OPA690
www.ti.com
SBOS223F – DECEMBER 2001 – REVISED FEBRUARY 2010
Wideband, Voltage-Feedback
OPERATIONAL AMPLIFIER with Disable
Check for Samples: OPA690
FEATURES
1
•2 FLEXIBLE SUPPLY RANGE:
+5V to +12V Single Supply
±2.5V to ±5V Dual Supply
• UNITY-GAIN STABLE: 500MHz (G = 1)
• HIGH OUTPUT CURRENT: 190mA
• OUTPUT VOLTAGE SWING: ±4.0V
• HIGH SLEW RATE: 1800V/µs
• LOW SUPPLY CURRENT: 5.5mA
• LOW DISABLE CURRENT: 100µA
• WIDEBAND +5V OPERATION: 220MHz (G = 2)
APPLICATIONS
• VIDEO LINE DRIVING
• xDSL LINE DRIVER/RECEIVER
• HIGH-SPEED IMAGING CHANNELS
• ADC BUFFERS
• PORTABLE INSTRUMENTS
• TRANSIMPEDANCE AMPLIFIERS
• ACTIVE FILTERS
DESCRIPTION
The OPA690 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 combine to give
exceptional single-supply operation. Using a single
+5V supply, the OPA690 can deliver a 1V to 4V
output swing with over 150mA drive current and
150MHz bandwidth. This combination of features
makes the OPA690 an ideal RGB line driver or
single-supply Analog-to-Digital Converter (ADC) input
driver.
The low 5.5mA supply current of the OPA690 is
precisely trimmed at +25°C. This trim, along with low
temperature drift, gives 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 OPA690 normally. If pulled LOW, the
OPA690 supply current drops to less than 100mA
while the output goes to a high-impedance state. This
feature may be used for power savings.
OPA690 RELATED PRODUCTS
SINGLES
DUALS
TRIPLES
Voltage-Feedback
—
OPA2690 OPA3690
Current-Feedback
OPA691
OPA2691 OPA3691
Fixed Gain
OPA692
—
OPA3692
Single-Supply ADC Driver
+5V
R₁
R₁
2.5V
0.1mF
3
8
C₁
R₂
V_I
OPA690
2
4
C₂
R₄
20W
R₅
20W
R₃
C₄
10mF
C₅
0.1mF
3.3V
THS1040
C₃
20pF
C₆
20pF
AIN+
10-Bit
40MSPS
AIN-
V_REF = 1V
1
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2001–2010, Texas Instruments Incorporated