LOW DISTORTION WIDEBAND OP AMP
General Description
The SPT232 is a wideband low distortion operational amplifier designed
specifically for high speed, low gain applications requiring wide
dynamic range. Utilizing a current feedback architecture, the SPT232
offers high speed performance while maintaining DC precision.
The SPT232 offers precise gains from
鹵1
to
鹵5
with a true 0.1%
linearity and provides stable, oscillation-free operation across the
entire gain range without external compensation. The SPT232, a
pin compatible enhanced version of the SPT231, reduces 2nd
and 3rd harmonic distortion to an extremely low -69dBc at 20MHz
(2V
pp
, R
L
= 100鈩?. Additional features provided by the SPT232
include a small signal bandwidth of 270MHz, a large signal
bandwidth of 95MHz and a 3000V/碌s slew rate. The input offset
voltage is typically 1mV with an input offset drift of 10碌V/擄C.
The SPT232 combines these high performance features with its
0.05% settling time of 15ns and its 100mA drive capability to
provide high-speed, high-resolution A/D and D/A converter sys-
tems with an attractive solution for driving and buffering. Wide
dynamic range systems such as radar and communication re-
ceivers requiring low harmonic distortion and low noise will find
the SPT232 to be an excellent choice. As a linedriver, the
SPT232 set at a gain of 2 cancels matched line losses.
The SPT232 is constructed using thin film resistor/bipolar transis-
tor technology, and is available in the following versions:
SPT232AIH -25擄C to +85擄C 12-pin TO-8 can
SPT232AMH -55擄C to +125擄C 12-pin TO-8 can, features
burn-inand hermetic testing
Typical Performance
Package Dimensions
Features
s
s
s
s
s
s
s
-69dBc 2nd and 3rd harmonics at 20MHz
-3dB bandwidth of 270MHz
0.005% settling in 15ns
3000V/碌s slew rate
1mV input offset voltage, 10碌V/擄C drift
鹵10V,
100mA max output
Direct replacement for CLC232
Applications
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s
s
s
s
s
s
Flash A/D drivers
DAC current-to-voltage conversion
Wide dynamic range IF amps
VCO drivers
DDS postamps
Radar/communication receivers
Precision line drivers
Bottom View
Spectral Response
4755 Forge Road, Colorado Springs, Colorado 80907, USA
Phone: (719) 528-2300 FAX: (719) 528-2370 Website: http://www.spt.com E-Mail: sales@spt.com
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