B
u
r
r
Ć
B
r
o
w
n
P
r
o
d
u
c
t
s
OPA2890
f
r
o
m
T
e
x
a
s
I
n
s
t
r
u
m
e
n
t
s
SBOS364A–DECEMBER 2007–REVISED DECEMBER 2007
Low-Power, Wideband, Voltage-Feedback
OPERATIONAL AMPLIFIER with Disable
1
FEATURES
DESCRIPTION
2
•
FLEXIBLE SUPPLY RANGE:
+3V to +12V Single Supply
±1.5V to ±6V Dual Supplies
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.
•
•
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
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.
•
•
•
•
•
•
•
VIDEO LINE DRIVING
xDSL LINE DRIVERS/RECEIVERS
HIGH-SPEED IMAGING CHANNELS
ADC BUFFERS
PORTABLE INSTRUMENTS
TRANSIMPEDANCE AMPLIFIERS
ACTIVE FILTERS
+5V
+6V
1kW
50W
ADS8472
VI
0V ® 4V
RELATED
OPERATIONAL AMPLIFIER
PRODUCTS
16W
1/2
500pF
200W
OPA2890
-6V
200W
SINGLES
DUALS
TRIPLES
16-Bit
1MSPS
SAR ADC
Low-power voltage-feedback
with disable
750W
750W
OPA890
0.01mF
Very low-power
OPA2889
OPA2690
voltage-feedback with disable
+6V
Voltage-feedback amplifier
with disable (1800V/µs)
OPA690
OPA3690
16W
1/2
375W
OPA2890
VREF/2
500kHz LP
Pole
-6V
Low Power, DC-Coupled, Single-to-Differential
Driver for ≤100kHz Inputs
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.
2
All trademarks are the property of their respective owners.
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, Texas Instruments Incorporated