OPA2890 Datasheet, PDF (1/38 Pages) Texas Instruments – Low-Power, Wideband, Voltage-Feedback OPERATIONAL AMPLIFIER with Disable

OPA2890
www.ti.com
SBOS364C – DECEMBER 2007 – REVISED DECEMBER 2009
Low-Power, Wideband, Voltage-Feedback
OPERATIONAL AMPLIFIER with Disable
Check for Samples: OPA2890
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
SINGLES DUALS
Low-power voltage-feedback
with disable
OPA890
Very low-power
voltage-feedback with disable
OPA2889
Voltage-feedback amplifier
with disable (1800V/μs)
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 © 2007–2009, Texas Instruments Incorporated