The OPA623 is a current-feedback operational ampli-
fier designed for precision wide-bandwidth systems
including high-resolution video, RF and IF circuitry,
and communications equipment.
The new circuit design, together with the complemen-
tary bipolar process, achieves performance pre-
viously unattainable in monolithic integrated circuit
technology.
The current-feedback op amp is optimized for wide
bandwidth, excellent pulse response, gain flatness,
low distortion, and operation at a low quiescent cur-
rent of
鹵4mA.
It provides a 350MHz large-signal bandwidth at
2.8Vp-p output voltage, as well as a 2100V/碌s slew
rate. The gain flatness of 0.05dB over a 30MHz
bandwidth makes it suitable for HDTV designs. An-
other feature of the op amp is its high output current
of
鹵70mA,
enabling it to drive two back-terminated
75鈩?cables when using the amplifier as a line driver in
video routers, distribution amplifiers, and analog and
digital communications equipment.
The OPA623 operates from a
鹵5V
supply, is speci-
fied for the extended industrial temperature range
(鈥?0擄C to +85擄C), and is available in plastic SO-8
and 8-pin plastic DIP packages.
LARGE SIGNAL PULSE RESPONSE
+2.5V
Output voltage
OV
鈥?.5V
Output Voltage - 5Vp-p, 5ns/DIV
R
IN
V
IN
= 2.5Vp-p
180鈩?/div>
+V
CC
3
2
7
OPA623
6
V
OUT
= 5.0Vp-p
鈥揤
CC
4
R
2
R
1
300
鈩?/div>
300鈩?/div>
G = 1 + R
2
/R
1
= +2V/V
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
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