OPA2890_08 Datasheet, PDF (1/35 Pages) Texas Instruments – Low-Power, Wideband, Voltage-Feedback OPERATIONAL AMPLIFIER with Disable

OPA2890
OPA2890
OPA2890
www.ti.com.................................................................................................................................................... SBOS364B – DECEMBER 2007 – REVISED MAY 2008
Low-Power, Wideband, Voltage-Feedback
OPERATIONAL AMPLIFIER with Disable
FEATURES
1
•2 FLEXIBLE SUPPLY RANGE:
+3V to +12V Single Supply
±1.5V to ±6V Dual Supplies
• UNITY-GAIN STABLE
• WIDEBAND +5V OPERATION: 90MHz
(G = 2V/V)
• OUTPUT VOLTAGE SWING: ±4.1V
• HIGH SLEW RATE: 400V/µs
• LOW QUIESCENT CURRENT: 1.1mA/ch
• LOW DISABLE CURRENT: 30µA/ch
APPLICATIONS
• VIDEO LINE DRIVING
• xDSL LINE DRIVERS/RECEIVERS
• HIGH-SPEED IMAGING CHANNELS
• ADC BUFFERS
• PORTABLE INSTRUMENTS
• TRANSIMPEDANCE AMPLIFIERS
• ACTIVE FILTERS
V_I
0V ® 4V
1kW
500pF
50W
200W
+6V
1/2
OPA2890
+5V
ADS8472
16W
-6V
200W
750W
750W
0.01mF
16-Bit
1MSPS
SAR ADC
V_REF/2
375W
+6V
1/2
OPA2890
-6V
16W
500kHz LP
Pole
Low Power, DC-Coupled, Single-to-Differential
Driver for ≤100kHz Inputs
DESCRIPTION
The OPA2890 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. These capabilities give
exceptional single-supply operation. Using a single
+5V supply, the OPA2890 can deliver a 0.9V to 4.1V
output swing with over 30mA drive current and
210MHz bandwidth. This combination of features
makes the OPA2890 an ideal RGB line driver or
single-supply analog-to-digital converter (ADC) input
driver.
The low 1.1mA/ch supply current of the OPA2890 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 (MSOP-10 package only). Leaving this disable pin
open, or holding it high, operates the OPA2890
normally. If pulled low, the OPA2890 supply current
drops to less than 30µA/ch while the output goes into
a high-impedance state.
RELATED
OPERATIONAL AMPLIFIER
PRODUCTS
Low-power voltage-feedback
with disable
Very low-power
voltage-feedback with disable
Voltage-feedback amplifier
with disable (1800V/µs)
SINGLES
OPA890
DUALS
OPA2889
OPA690 OPA2690
TRIPLES
OPA3690
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas 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 © 2007–2008, Texas Instruments Incorporated