OPA3681 Datasheet, PDF (1/21 Pages) Burr-Brown (TI) – Triple Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable

®
OPA3681
OPA3681
OPA3681
For most current data sheet and other product
information, visit www.burr-brown.com
TM _{Triple Wideband, Current-Feedback}
OPERATIONAL AMPLIFIER With Disable
FEATURES
DESCRIPTION
q WIDEBAND +5V OPERATION: 225MHz (G = +2)
q UNITY GAIN STABLE: 280MHz (G = 1)
q HIGH OUTPUT CURRENT: 150mA
q OUTPUT VOLTAGE SWING: ±4.0V
q HIGH SLEW RATE: 2100V/µs
q LOW SUPPLY CURRENT: 6mA/ch
q LOW DISABLED CURRENT: 300µA/ch
q IMPROVED HIGH FREQUENCY PINOUT
APPLICATIONS
q RGB AMPLIFIERS
q WIDEBAND INA
q BROADBAND VIDEO BUFFERS
q HIGH SPEED IMAGING CHANNELS
q PORTABLE INSTRUMENTS
q ADC BUFFERS
q ACTIVE FILTERS
q CABLE DRIVERS
+5
V₁
1/3
OPA3681
–5
250Ω
+5
The OPA3681 sets a new level of performance for broadband
triple current-feedback op amps. Operating on a very low
6mA/ch supply current, the OPA3681 offers a slew rate and
output power normally associated with a much higher supply
current. A new output stage architecture delivers a high output
current with minimal voltage headroom and crossover distor-
tion. This gives exceptional single-supply operation. Using a
single +5V supply, the OPA3681 can deliver a 1V to 4V output
swing with over 100mA drive current and 150MHz bandwidth.
This combination of features makes the OPA3681 an ideal RGB
line driver or single-supply ADC input driver.
The OPA3681’s low 6mA/ch supply current is precisely trimmed
at 25°C. This trim, along with low drift over temperature,
guarantees lower guaranteed maximum supply current than
competing products. System power may be further reduced by
using the optional disable control pin. Leaving this disable pin
open, or holding it high, gives normal operation. If pulled low,
the OPA3681 supply current drops to less than 300µA/ch while
the output goes into a high impedance state. This feature may be
used for power savings or for video MUX applications.
OPA3681 RELATED PRODUCTS
Voltage Feedback
Current Feedback
Fixed Gain
SINGLES
OPA680
OPA681
OPA682
DUALS
OPA2680
OPA2681
OPA2682
TRIPLES
OPA3680
OPA3681
OPA3682
DIFFERENTIAL TO SINGLE-ENDED
FREQUENCY RESPONSE
26
301Ω
66.5Ω
301Ω
1/3
10 (V₁ – V₂)
23
250Ω
OPA3681
20
–5
17
499Ω
14
f_–3dB
+5
499Ω
11
1/3
OPA3681
V₂
–5 ^{High Speed INA (>120MHz)}
8
5
0.1M
1M
10M
100M
1G
Frequency (Hz)
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: [phone]
Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
©_{1999 Burr-Brown Corporation}
PDS-1452B
Printed in U.S.A. September, 1999