Product Summary

The ADS78040 is a complete 12-Bit CMOS analog-to-digital converter used state-of-the-art CMOS structures. It contains a complete 12-bit, capacitor-based, SAR A/D with S/H, reference, clock, interface for microprocessor use, and three-state output drivers. The ADS78040 is specified at a 100kHz sampling rate, and guaranteed over the full temperature range. Lasertrimmed scaling resistors provide an industrystandard ±10V input range, while the innovative design allows operation from a single +5V supply, with power dissipation under 100mW.

Parametrics

ADS78040 absolute maximum ratings: (1)Analog Inputs: VIN: ±25V; CAP: +VANA +0.3V to AGND2 -0.3V; REF: Indefinite Short to AGND2; Momentary Short to VANA; (2)Ground Voltage Differences: DGND, AGND1, AGND2: ±0.3V; (3)VANA: 7V; (4)VDIG to VANA: +0.3V; (5)VDIG: 7V; (6)Digital Inputs: -0.3V to +VDIG +0.3V; (7)Maximum Junction Temperature: +165℃; (8)Internal Power Dissipation: 825mW; (9)Lead Temperature (soldering, 10s): +300℃.

Features

ADS78040 features: (1)100kHz min sampling rate; (2)Standard ±10v input range; (3)72dB min sinad with 45khz input; (4)±0.45 LSB max INL; (5)DNL: 12 Bits “No Missing Codes; (6)Single +5v supply operation; (7)Pin-compatible with 16-bit ADS7805; (8)Uses internal or external reference; (9)Complete with s/h, ref, clock, etc; (10)Full parallel data output; (11)100mW max power dissipation; (12)28-PIN 0.3" plastic dip and soic.

Diagrams

ADS78040 block diagram

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