ADS-933

® ® ADS-933 16-Bit, 3MHz Sampling A/D Converters INNOVATION and EXCELLENCE PRELIMINARY PRODUCT DATA FEATURES 16-bit resolution 3MHz sampling rate Functionally complete No missing codes over full military temperature range Edge-triggered ±5V supplies, 1.85 Watts Small, 40-pin, ceramic TDIP 85dB SNR, –84dB THD Ideal for both time and frequency-domain applications PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 INPUT/OUTPUT CONNECTIONS FUNCTION +3.2V REF. OUT UNIPOLAR ANALOG INPUT ANALOG GROUND OFFSET ADJUST GAIN ADJUST DIGITAL GROUND FIFO/DIR FIFO READ FSTAT1 FSTAT2 START CONVERT BIT 16 (LSB) BIT 15 BIT 14 BIT 13 BIT 12 BIT 11 BIT 10 BIT 9 PIN 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 FUNCTION NO CONNECTION NO CONNECTION +5V ANALOG SUPPLY –5V SUPPLY ANALOG GROUND COMP. BITS OUTPUT ENABLE OVERFLOW EOC +5V DIGITAL SUPPLY DIGITAL GROUND BIT 1 (MSB) BIT 1 (MSB) BIT 2 BIT 3 BIT 4 BIT 5 BIT 6 BIT 7 BIT 8 GENERAL DESCRIPTION The low-cost ADS-933 is a 16-bit, 3MHz sampling A/D converter. This device accurately samples full-scale input signals up to Nyquist frequencies with no missing codes. The dynamic performance of the ADS-933 has been optimized to achieve a signal-to-noise ratio (SNR) of 85dB and a total harmonic distortion (THD) of –84dB. Packaged in a 40-pin TDIP, the functionally complete ADS-933 contains a fast-settling sample-hold amplifier, a subranging (two-pass) A/D converter, an internal reference, timing/control logic, and e...