廬
OPA
268
0
OPA
2
680
OPA2680
OPA
2
680
Dual Wideband, Voltage Feedback
OPERATIONAL AMPLIFIER With Disable
TM
FEATURES
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WIDEBAND +5V OPERATION: 220MHz (G = 2)
HIGH OUTPUT CURRENT: 150mA
OUTPUT VOLTAGE SWING:
鹵
4.0V
HIGH SLEW RATE: 1800V/
碌
s
LOW SUPPLY CURRENT: 6.4mA/Ch.
LOW DISABLED CURRENT: 200
碌
A/Ch.
ENABLE/DISABLE TIME: 25ns/100ns
APPLICATIONS
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VIDEO LINE DRIVING
xDSL LINE DRIVER/RECEIVER
HIGH SPEED IMAGING CHANNELS
ADC BUFFERS
PORTABLE INSTRUMENTS
TRANSIMPEDANCE AMPLIFIERS
ACTIVE FILTERS
DESCRIPTION
The OPA2680 represents a major step forward in unity
gain stable, voltage feedback op amps. A new internal
architecture provides slew rate and full power band-
width previously found only in wideband current feed-
back op amps. A new output stage architecture delivers
high currents with a minimal headroom requirement.
These combine to give exceptional single supply opera-
tion. Using a single +5V supply, the OPA2680 can
deliver a 1V to 4V output swing with over 100mA drive
current and 150MHz bandwidth. This combination of
features makes the OPA2680 an ideal RGB line driver
or single supply ADC input driver.
The OPA2680鈥檚 low 6.4mA/ch. supply current is pre-
cisely trimmed at 25擄C. This trim, along with low tem-
perature drift, guarantees lower maximum supply current
than competing products. System power may be reduced
further using the optional disable control pin (SO-14
package only). Leaving this disable pin open, or holding
it high, will operate the OPA2680N normally. If pulled
low, the OPA2680N supply current drops to less than
400碌A(chǔ) while the output goes into a high impedance state.
This feature may be used for either power savings or to
implement video MUX applications.
OPA2680 PRODUCT FAMILY
SINGLES
Voltage Feedback
Current Feedback
OPA680
OPA681
DUALS
OPA2680
OPA2681
+5V
0.1碌F
1.5k鈩?/div>
1.5k鈩?/div>
200鈩?/div>
+2.5V
+5V
+1.5V
0.1碌F
3.2k鈩?/div>
50鈩?/div>
+3.5V
0.1碌F
+1.5V
REFB
REFT
1/2
OPA2680
50鈩?/div>
IN
ADS822
10pF
800鈩?/div>
1/2
OPA2680
1.6k鈩?/div>
1.6k鈩?/div>
2.5V
CM
鹵1V
DIFF
Clock
10-Bit
40MSPS
400鈩?/div>
400鈩?/div>
50鈩?/div>
V
IN
0V to +1V
IN
10pF
Single-Supply, DC-Coupled, Single-to-Differential ADC Driver
International Airport Industrial Park 鈥?Mailing Address: PO Box 11400, Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 鈥?Tel: (520) 746-1111 鈥?Twx: 910-952-1111
Internet: http://www.burr-brown.com/ 鈥?FAXLine: (800) 548-6133 (US/Canada Only) 鈥?Cable: BBRCORP 鈥?Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132
漏
1997 Burr-Brown Corporation
PDS-1433A
Printed in U.S.A. December, 1997
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