The ADS7800 is a complete 12-bit sampling analog-to-digital converter using state-of-the-art CMOS structures. It contains a complete 12-bit successive approximation A/D converter with internal sample/hold, reference, clock, digital interface for microprocessor control, and three-state output drivers.
The ADS7800 is specified at a 333kHz sampling rate. Conversion time is factory set for 2.70µs max over temperature, and the high speed sampling input stage insures a total acquisition and conversion time of 3µs max over temperature. Precision, laser-trimmed scaling resistors provide industry-standard input ranges of ±5V or ±10V.
AC and DC performance are completely specified. Two grades based on linearity and dynamic performance are available to provide the optimum price/performance fit in a wide range of applications.
The 24-pin ADS7800 is available in plastic and side-braze hermetic 0.3" wide DIPs, and in an SOIC package. It operates from a +5V supply and either a –12V or –15V supply. The ADS7800 is available in grades specified over 0°C to +70°C and –40°C to +85°C temperature ranges.
Note: Recommended Voltage Reference: REF02 and REF102
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| Resolution (Bits) | 12 |
| Sample rate (max) (ksps) | 333 |
| Number of input channels | 1 |
| Interface type | Byte-Wide, Parallel |
| Architecture | SAR |
| Input type | Single-ended |
| Rating | Catalog |
| Reference mode | Internal |
| Input voltage range (max) (V) | 10 |
| Input voltage range (min) (V) | -10 |
| Operating temperature range (°C) | -40 to 85 |
| Power consumption (typ) (mW) | 135 |
| Analog supply (min) (V) | 4.75 |
| Analog supply voltage (max) (V) | 5.25 |
| SNR (dB) | 73 |
| Digital supply (min) (V) | 4.75 |
| Digital supply (max) (V) | 5.25 |
| CDIP_SB (JDN) | 24 | 224.6376 mm² 30.48 x 7.37 |
| SOIC (DW) | 24 | 159.65 mm² 15.5 x 10.3 |
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