ADS7812

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Low-Power, Serial 12-Bit Sampling Analog-To-Digital Converter

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Data sheet

document-pdfAcrobat ADS7812: Low-Power, Serial 12-Bit Sampling Analog-To-Digital Converter datasheet (Rev. A)

Errata

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Errata: ADS78xx

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16-bit, 1MSPS, one-channel, wide bandwidth SAR ADC with programmable input ranges on +5V supply Higher resolution, higher speed, increased bandwith

ADS7812

ACTIVE

Data sheet

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Product details

Resolution (Bits)

12

Sample rate (max) (ksps)

40

Number of input channels

1

Interface type

SPI

Architecture

SAR

Input type

Single-ended

Rating

Catalog

Reference mode

External, Internal

Input voltage range (max) (V)

10

Input voltage range (min) (V)

-10

Operating temperature range (°C)

-40 to 85

Power consumption (typ) (mW)

35

Analog supply (min) (V)

4.75

Analog supply voltage (max) (V)

5.25

SNR (dB)

74

Digital supply (min) (V)

4.75

Digital supply (max) (V)

5.25

Resolution (Bits)

12

Sample rate (max) (ksps)

40

Number of input channels

1

Interface type

SPI

Architecture

SAR

Input type

Single-ended

Rating

Catalog

Reference mode

External, Internal

Input voltage range (max) (V)

10

Input voltage range (min) (V)

-10

Operating temperature range (°C)

-40 to 85

Power consumption (typ) (mW)

35

Analog supply (min) (V)

4.75

Analog supply voltage (max) (V)

5.25

SNR (dB)

74

Digital supply (min) (V)

4.75

Digital supply (max) (V)

5.25

PDIP (N)

16

181.42 mm² 19.3 x 9.4

SOIC (DW)

16

106.09 mm² 10.3 x 10.3

20µs max CONVERSION TIME
SINGLE +5V SUPPLY OPERATION
PIN-COMPATIBLE WITH 16-BIT ADS7813
EASY-TO-USE SERIAL INTERFACE
0.3" DIP-16 AND SO-16
±0.5LSB max INL AND DNL
72dB min SINAD
USES INTERNAL OR EXTERNAL REFERENCE
MULTIPLE INPUT RANGES
35mW max POWER DISSIPATION
NO MISSING CODES
50µW POWER DOWN MODE
APPLICATIONS
- DATA ACQUISITION SYSTEMS
- INDUSTRIAL CONTROL
- TEST EQUIPMENT
- DIGITAL SIGNAL PROCESSING

Note: Recommended Voltage Reference: REF02 and REF102
All trademarks are the property of their respective owners.

20µs max CONVERSION TIME
SINGLE +5V SUPPLY OPERATION
PIN-COMPATIBLE WITH 16-BIT ADS7813
EASY-TO-USE SERIAL INTERFACE
0.3" DIP-16 AND SO-16
±0.5LSB max INL AND DNL
72dB min SINAD
USES INTERNAL OR EXTERNAL REFERENCE
MULTIPLE INPUT RANGES
35mW max POWER DISSIPATION
NO MISSING CODES
50µW POWER DOWN MODE
APPLICATIONS
- DATA ACQUISITION SYSTEMS
- INDUSTRIAL CONTROL
- TEST EQUIPMENT
- DIGITAL SIGNAL PROCESSING

Note: Recommended Voltage Reference: REF02 and REF102
All trademarks are the property of their respective owners.

The ADS7812 is a low-power, single +5V supply, 12-bit sampling analog-to-digital converter. It contains a complete 12-bit capacitor-based SAR A/D with a sample/hold, clock, reference, and serial data interface.

The converter can be configured for a variety of input ranges including ±10V, ±5V, 0V to 10V, and 0.5V to 4.5V. A high impedance 0.3V to 2.8V input range is also available (input impedance > 10M). For most input ranges, the input voltage can swing to +16.5V or –16.5V without damage to the converter.

A flexible SPI compatible serial interface allows data to be synchronized to an internal or external clock. The ADS7812 is specified at a 40kHz sampling rate over the –40°C to +85°C temperature range. It is available in a 0.3" DIP-16 or an SO-16 package.

The ADS7812 is a low-power, single +5V supply, 12-bit sampling analog-to-digital converter. It contains a complete 12-bit capacitor-based SAR A/D with a sample/hold, clock, reference, and serial data interface.

The converter can be configured for a variety of input ranges including ±10V, ±5V, 0V to 10V, and 0.5V to 4.5V. A high impedance 0.3V to 2.8V input range is also available (input impedance > 10M). For most input ranges, the input voltage can swing to +16.5V or –16.5V without damage to the converter.

A flexible SPI compatible serial interface allows data to be synchronized to an internal or external clock. The ADS7812 is specified at a 40kHz sampling rate over the –40°C to +85°C temperature range. It is available in a 0.3" DIP-16 or an SO-16 package.

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