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OPA890 Datasheet

  • OPA890

  • Low-Power, Wideband, Voltage-Feedback OPERATIONAL AMPLIFIER ...

  • 35頁

  • TI

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Burr Brown Products
from Texas Instruments
OP
A2
890
OPA2890
SBOS364A 鈥?DECEMBER 2007 鈥?REVISED DECEMBER 2007
OP
A2
890
Low-Power, Wideband, Voltage-Feedback
OPERATIONAL AMPLIFIER with Disable
1
FEATURES
鈥?/div>
FLEXIBLE SUPPLY RANGE:
+3V to +12V Single Supply
鹵1.5V to 鹵6V Dual Supplies
鈥?/div>
UNITY-GAIN STABLE
鈥?/div>
WIDEBAND +5V OPERATION: 90MHz
(G = 2V/V)
鈥?/div>
OUTPUT VOLTAGE SWING: 鹵4.1V
鈥?/div>
HIGH SLEW RATE: 400V/碌s
鈥?/div>
LOW QUIESCENT CURRENT: 1.1mA/ch
鈥?/div>
LOW DISABLE CURRENT: 30碌A/ch
2
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擄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 30碌A/ch while the output goes into
a high-impedance state.
APPLICATIONS
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
VIDEO LINE DRIVING
xDSL LINE DRIVERS/RECEIVERS
HIGH-SPEED IMAGING CHANNELS
ADC BUFFERS
PORTABLE INSTRUMENTS
TRANSIMPEDANCE AMPLIFIERS
ACTIVE FILTERS
1kW
V
I
0V
廬
4V
500pF
200W
1/2
OPA2890
50W
+6V
16W
+5V
ADS8472
RELATED
OPERATIONAL AMPLIFIER
PRODUCTS
SINGLES
DUALS
TRIPLES
Low-power voltage-feedback
with disable
Very low-power
voltage-feedback with disable
OPA890
OPA2889
OPA690
OPA2690
OPA3690
-6V
200W
750W
0.01
m
F
750W
16-Bit
1MSPS
SAR ADC
+6V
375W
V
REF
/2
-6V
500kHz LP
Pole
1/2
OPA2890
16W
Voltage-feedback amplifier
with disable (1800V/碌s)
Low Power, DC-Coupled, Single-to-Differential
Driver for
鈮?00kHz
Inputs
1
2
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.
Copyright 漏 2007, Texas Instruments Incorporated
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.

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