The ADS7819 is a complete 12-bit sampling A/D using state-of-the-art CMOS structures. It contains a complete 12-bit capacitor-based SAR A/D with inherent
S/H, reference, clock, interface for microprocessor use, and three-state output drivers.
The ADS7819 is specified at an 800kHz sampling rate, and guaranteed over the full temperature range. Laser-trimmed scaling resistors provide a ±2.5V input range and inherent overvoltage protection up to ±25V.
The 28-pin ADS7819 is available in a plastic 0.3" DIP and in an SOIC, both fully specified for operation over the industrial 40°C to +85°C range.
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1.25s THROUGHPUT TIMESTANDARD ±2.5V INPUT RANGE70dB min SINAD WITH 250kHz INPUT±3/4 LSB max INL AND ±1 LSB max DNLINTERNAL REFERENCECOMPLETE WITH S/H, REF, CLOCK, ETC.PARALLEL DATA w/ LATCHES28-PIN 0.3" PDIP AND SOIC
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VIN .................................................................................................. ±25V
REF ............................................................ +VANA +0.3V to AGND2 0.3V
CAP ................................................................... Indefinite Short to AGND2
Momentary Short to +VANA
Ground Voltage Differences: DGND, AGND1, AGND2 ......................... ±0.3V
+VANA ................................................................................................. +7V
+VDIG to +VANA ............................................................................... +0.3V
+VDIG .................................................................................................... 7V
VANA ................................................................................................ 7V
Digital Inputs .......................................................... 0.3V to +VDIG +0.3V
Maximum Junction Temperature ................................................... +165°C
Internal Power Dissipation ............................................................. 825mW
Lead Temperature (soldering, 10s) ............................................... +300°C
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