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

±1 to ±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

include a small signal bandwidth of 270MHz, a large signal

bandwidth of 95MHz and a 3000V/

µs slew rate. The input offset

voltage is typically 1mV with an input offset drift of 10

µV/°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

°C to +85°C 12-pin TO-8 can

SPT232AMH -55

°C to +125°C 12-pin TO-8 can, features

burn-inand hermetic testing

Features

s

-69dBc 2nd and 3rd harmonics at 20MHz

s

-3dB bandwidth of 270MHz

s

0.005% settling in 15ns

s

3000V/

µs slew rate

s

1mV input offset voltage, 10

µV/°C drift

s

±10V, 100mA max output

s

Direct replacement for CLC232

Applications

s

Flash A/D drivers

s

DAC current-to-voltage conversion

s

Wide dynamic range IF amps

s

VCO drivers

s

DDS postamps

s

Radar/communication receivers

s

Precision line drivers

Bottom View

Package Dimensions

LOW DISTORTION WIDEBAND OP AMP

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

Spectral Response

Typical Performance