ADS7804U chip in electronics Integrated Circuit Chip 12-Bit 10ms Sampling CMOS ANALOG-to-DIGITAL CONVERTER

ADS7804

12-Bit 10µs Sampling CMOS ANALOG-to-DIGITAL CONVERTER

FEATURES

● 100kHz min SAMPLING RATE

● STANDARD ±10V INPUT RANGE

● 72dB min SINAD WITH 45kHz INPUT

● ±0.45 LSB max INL

● DNL: 12 Bits “No Missing Codes”

● SINGLE +5V SUPPLY OPERATION

● PIN-COMPATIBLE WITH 16-BIT ADS7805

● USES INTERNAL OR EXTERNAL REFERENCE

● COMPLETE WITH S/H, REF, CLOCK, ETC.

● FULL PARALLEL DATA OUTPUT

● 100mW max POWER DISSIPATION

● 28-PIN 0.3" PLASTIC DIP AND SOIC

DESCRIPTION

The ADS7804 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 S/H, reference, clock, interface for microprocessor use, and three-state output drivers.

The ADS7804 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.

The 28-pin ADS7804 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.

ABSOLUTE MAXIMUM RATINGS

Analog Inputs: V_IN ............................................................................. ±25V

CAP ..................................... +V_ANA +0.3V to AGND2 –0.3V

REF .......................................... Indefinite Short to AGND2 Momentary Short to V_ANA

Ground Voltage Differences: DGND, AGND1, AGND2 ..................... ±0.3V

V_ANA .......................................................................................................7V

V_DIG to V_ANA ..................................................................................... +0.3V

V_DIG ....................................................................................................... 7V

Digital Inputs ........................................................... –0.3V to +VDIG +0.3V

Maximum Junction Temperature ................................................... +165°C

Internal Power Dissipation............................................................. 825mW

Lead Temperature (soldering, 10s) ............................................... +300°C

PIN CONFIGURATION

Stock Offer (Hot Sell)

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