The OPA680 represents a major step forward in unity gain
stable, voltage feedback op amps. A new internal architec-
ture provides slew rate and full power bandwidth previously
found only in wideband current feedback op amps. A new
output stage architecture delivers high currents with a mini-
mal headroom requirement. These combine to give excep-
tional single supply operation. Using a single +5V supply,
the OPA680 can deliver a 1V to 4V output swing with over
100mA drive current and 150MHz bandwidth. This combi-
nation of features makes the OPA680 an ideal RGB line
driver or single supply ADC input driver.
The OPA680鈥檚 low 6.4mA supply current is precisely
trimmed at 25擄C. This trim, along with low temperature
+5V
1.2k鈩?/div>
drift, guarantees lower maximum supply current than com-
peting products. System power may be reduced further using
the optional disable control pin. Leaving this disable pin
open, or holding it high, will operate the OPA680 normally.
If pulled low, the OPA680 supply current drops to less than
300碌A(chǔ) while the output goes to a high impedance state. This
feature may be used for either power savings or to imple-
ment video MUX applications.
OPA680 RELATED PRODUCTS
SINGLES
Voltage Feedback
Current Feedback
Fixed Gain
OPA680
OPA681
OPA682
DUALS
OPA2680
OPA2681
OPA2682
TRIPLES
OPA3680
OPA3681
OPA3682
+5V
3k鈩?/div>
+3.5V
Clock
0.1碌F
400鈩?/div>
DIS
40鈩?/div>
0.5Vp-p 0.1碌F
V
IN
50鈩?/div>
OPA680
2Vp-p
Analog
Input
22pF
+2.5V
0.1碌F
Gnd
3k鈩?/div>
REFB
+1.5V
0.1碌F
ADS822
10-Bit
40MSPS
CM
+V
S
REFT
0.1碌F
1.15k鈩?/div>
Single-Supply, High Speed, 10-Bit Digitzer
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