SPT9110

SPT9110 100 MSPS SINGLE-TO-DIFFERENTIAL TRACK-AND-HOLD FEATURES 400 MHz Sampling Bandwidth 100 MHz Sampling Rate Excellent Hold Mode Distortion -66 dB @ 50 MSPS (fIN = 25 MHz) -58 dB @ 100 MSPS (fIN = 50 MHz) Track Mode Slew Rate: 700 V/µs Low Power: 120 mW Differential Mode 75 mW Single-Ended Mode Single +5 V Supply Internal +2.5 V Reference APPLICATIONS THA for Differential ADCs RF Demodulation Systems Test Instrumentation Digital Sampling Oscilloscopes GENERAL DESCRIPTION The SPT9110 is a single-to-differential track-and-hold amplifier. It can be operated as a single-end THA only or, in full configuration, as a single-to-differential THA. An internal reference provides the common-mode voltage for the singleto-differential output stage. The THA, inverter and reference have separate power supply pins so each can be optionally powered up and used. This device provides an analog designer with a low cost single-to-differential THA amplifier for interfacing differential and single-ended ADCs. The SPT9110 is offered in a 28-lead SOIC package in the industrial temperature range. BLOCK DIAGRAM AVCC (THA) Out+ AVCC (INV) Analog In (VIN) 1X 1X Invert InA CHOLD 1 kΩ R1 1 kΩ R2 Invert InB +2.5 V Reference Out+ CLK NCLK AVCC (Ref) Ref Out Ref In AGND Signal Processing Technologies, Inc. 4755 Forge Road, Colorado Springs, Colorado 80907, USA Phone: (719) 528-2300 FAX: (719) 528-2370 ABSOLUTE MAXIMUM RATING (Beyond which damage may occur)1 Suppl...