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Part Number: ADS7820
Description: The ADS7820 is a complete 12-bit sampling A/D using state-of-the-art CMOS structures. It contains a co...
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ADS7820
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DataSheet
General Description
ADS7820 General Description
The ADS7820 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 ADS7820 is specified at a 100kHz sampling rate, and guaranteed over the full temperature range. Lasertrimmed scaling resistors provide a 0 to +5V input range, with power dissipation under 100mW.
The 28-pin ADS7820 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.
ADS7820 Maximum Ratings
Analog Inputs: VIN ............................................ 0.7V to +VANA +0.3V
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
Digital Inputs .................................................. 0.3V to +VDIG +0.3V
Maximum Junction Temperature ........................................... +165°C
Internal Power Dissipation .................................................... 825mW
Lead Temperature (soldering, 10s) ..................................... +300°C
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
Digital Inputs .................................................. 0.3V to +VDIG +0.3V
Maximum Junction Temperature ........................................... +165°C
Internal Power Dissipation .................................................... 825mW
Lead Temperature (soldering, 10s) ..................................... +300°C
ADS7820 Features
·100kHz min SAMPLING RATE
·0 to +5V INPUT RANGE
·72dB min SINAD WITH 45kHz INPUT
·±1/2 LSB max INL AND DNL
·SINGLE +5V SUPPLY OPERATION
·PIN-COMPATIBLE WITH 16-BIT ADS7821
·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
·0 to +5V INPUT RANGE
·72dB min SINAD WITH 45kHz INPUT
·±1/2 LSB max INL AND DNL
·SINGLE +5V SUPPLY OPERATION
·PIN-COMPATIBLE WITH 16-BIT ADS7821
·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
ADS7820 Connection Diagram
ADS7820
PDF/DataSheet Download
- Datasheet: ADS7820
- File Size: 286823 KB
- Manufacturer: Burr-Brown
- Click here to Download
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