ADS117

www.DataSheet4U.com ® ® ADS-117 12-Bit, 2MHz, Low-Power Sampling A/D Converters FEATURES 12-bit resolution No missing codes 2MHz minimum throughput Functionally complete Small 24-pin DDIP Low-power, 1.6 Watts Three-state output buffers Samples to Nyquist frequencies GENERAL DESCRIPTION DATEL's ADS-117 is a functionally complete, 12-bit, 2MHz, sampling A/D converter. Its standard, 24-pin, double-width DIP contains a fast-settling sample-hold amplifier, a 12-bit subranging (two-step) A/D converter, a precision reference, three-state output register and all the timing and control logic necessary to operate from a single start convert pulse. Digital input and output levels are TTL. Total harmonic distortion (THD) and signal-to-noise ratio (including distortion) typically run –78dB and 70dB, respectively, with full scale inputs up to 100kHz. The ADS117 requires ±15V and +5V power supplies and typically consumes 1.6 Watts. Models are available for use in either commercial (0 to +70°C) or military (–55 to +125°C) operating temperature ranges. PIN 1 2 3 4 5 6 7 8 9 10 11 12 INPUT/OUTPUT CONNECTIONS FUNCTION BIT 12 (LSB) BIT 11 BIT 10 BIT 9 BIT 8 BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 (MSB) PIN 24 23 22 21 20 19 18 17 16 15 14 13 FUNCTION –15V SUPPLY ANALOG GROUND +15V SUPPLY +10V REFERENCE BIPOLAR ANALOG INPUT COMP BIN ENABLE (1-12) START CONVERT EOC DIGITAL GROUND +5V SUPPLY 17 ENABLE (1-12) DAC ww w.D ata Sh eet 4U .co m 12 BIT 1 (MSB) REF 11 BIT 2 +10V ...