ADS7844 Series

12-Bit, 8-Channel Serial Output Sampling Analog-To-Digital Converter

Catalog

12-Bit, 8-Channel Serial Output Sampling Analog-To-Digital Converter

Part	Ratio - S/H:ADC	Data Interface	Mounting Type	Input Type	Architecture	Number of Inputs	Package / Case [custom]	Package / Case	Package / Case [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply, Analog	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Number of A/D Converters	Number of Bits	Reference Type	Supplier Device Package	Sampling Rate (Per Second)	Configuration
Texas Instruments ADS7844EB	1:1	SPI	Surface Mount	Differential Single Ended	SAR	4 8	0.154 in	20-SSOP	3.9 mm	85 °C	-40 °C	5 V	2.7 V	3.6 V	1	12 bits	External	20-SSOP	200k	MUX-S/H-ADC
Texas Instruments ADS7844E/2K5G4	1:1	SPI	Surface Mount	Differential Single Ended	SAR	4 8	0.154 in	20-SSOP	3.9 mm	85 °C	-40 °C	5 V	2.7 V	3.6 V	1	12 bits	External	20-SSOP	200k	MUX-S/H-ADC
Texas Instruments ADS7844N/1K	1:1	SPI	Surface Mount	Differential Single Ended	SAR	4 8		20-SSOP		85 °C	-40 °C	5 V	2.7 V	3.6 V	1	12 bits	External	20-SSOP	200k	MUX-S/H-ADC
Texas Instruments ADS7844NG4	1:1	SPI	Surface Mount	Differential Single Ended	SAR	4 8		20-SSOP		85 °C	-40 °C	5 V	2.7 V	3.6 V	1	12 bits	External	20-SSOP	200k	MUX-S/H-ADC
Texas Instruments ADS7844NB	1:1	SPI	Surface Mount	Differential Single Ended	SAR	4 8		20-SSOP		85 °C	-40 °C	5 V	2.7 V	3.6 V	1	12 bits	External	20-SSOP	200k	MUX-S/H-ADC
Texas Instruments ADS7844NB/1K	1:1	SPI	Surface Mount	Differential Single Ended	SAR	4 8		20-SSOP		85 °C	-40 °C	5 V	2.7 V	3.6 V	1	12 bits	External	20-SSOP	200k	MUX-S/H-ADC
Texas Instruments ADS7844EG4	1:1	SPI	Surface Mount	Differential Single Ended	SAR	4 8	0.154 in	20-SSOP	3.9 mm	85 °C	-40 °C	5 V	2.7 V	3.6 V	1	12 bits	External	20-SSOP	200k	MUX-S/H-ADC
Texas Instruments ADS7844N/1KG4	1:1	SPI	Surface Mount	Differential Single Ended	SAR	4 8		20-SSOP		85 °C	-40 °C	5 V	2.7 V	3.6 V	1	12 bits	External	20-SSOP	200k	MUX-S/H-ADC
Texas Instruments ADS7844N	1:1	SPI	Surface Mount	Differential Single Ended	SAR	4 8		20-SSOP		85 °C	-40 °C	5 V	2.7 V	3.6 V	1	12 bits	External	20-SSOP	200k	MUX-S/H-ADC
Texas Instruments ADS7844E	1:1	SPI	Surface Mount	Differential Single Ended	SAR	4 8	0.154 in	20-SSOP	3.9 mm	85 °C	-40 °C	5 V	2.7 V	3.6 V	1	12 bits	External	20-SSOP	200k	MUX-S/H-ADC

Catalog

12-Bit, 8-Channel Serial Output Sampling Analog-To-Digital Converter

Key Features

• SINGLE SUPPLY: 2.7V to 5V8-CHANNEL SINGLE-ENDED OR 4-CHANNEL DIFFERENTIAL INPUTUP TO 200kHz CONVERSION RATE±1 LSB MAX INL AND DNLNO MISSING CODES72dB SINADSERIAL INTERFACE20-LEAD QSOP AND 20-LEAD SSOP PACKAGESALTERNATE SOURCE FOR MAX147APPLICATIONSDATA ACQUISITIONTEST AND MEASUREMENTINDUSTRIAL PROCESS CONTROLPERSONAL DIGITAL ASSISTANTSBATTERY-POWERED SYSTEMSAll trademarks are the property of their respective owners.SINGLE SUPPLY: 2.7V to 5V8-CHANNEL SINGLE-ENDED OR 4-CHANNEL DIFFERENTIAL INPUTUP TO 200kHz CONVERSION RATE±1 LSB MAX INL AND DNLNO MISSING CODES72dB SINADSERIAL INTERFACE20-LEAD QSOP AND 20-LEAD SSOP PACKAGESALTERNATE SOURCE FOR MAX147APPLICATIONSDATA ACQUISITIONTEST AND MEASUREMENTINDUSTRIAL PROCESS CONTROLPERSONAL DIGITAL ASSISTANTSBATTERY-POWERED SYSTEMSAll trademarks are the property of their respective owners.

Description

The ADS7844 is an 8-channel, 12-bit sampling analog-to-digital converter (ADC) with a synchronous serial interface. Typical power dissipation is 3mW at a 200kHz throughput rate and a +5V supply. The reference voltage (VREF) can be varied between 100mV and VCC, providing a corresponding input voltage range of 0V to VREF. The device includes a shutdown mode which reduces power dissipation to under 1µW. The ADS7844 is guaranteed down to 2.7V operation. Low power, high speed, and on-board multiplexer make the ADS7844 ideal for battery- operated systems such as personal digital assistants, portable multichannel data loggers, and measurement equipment. The serial interface also provides low-cost isolation for remote data acquisition. The ADS7844 is available in a 20-lead QSOP package and the MAX147 equivalent 20-lead SSOP is guaranteed over the –40°C to +85°C temperature range. The ADS7844 is an 8-channel, 12-bit sampling analog-to-digital converter (ADC) with a synchronous serial interface. Typical power dissipation is 3mW at a 200kHz throughput rate and a +5V supply. The reference voltage (VREF) can be varied between 100mV and VCC, providing a corresponding input voltage range of 0V to VREF. The device includes a shutdown mode which reduces power dissipation to under 1µW. The ADS7844 is guaranteed down to 2.7V operation. Low power, high speed, and on-board multiplexer make the ADS7844 ideal for battery- operated systems such as personal digital assistants, portable multichannel data loggers, and measurement equipment. The serial interface also provides low-cost isolation for remote data acquisition. The ADS7844 is available in a 20-lead QSOP package and the MAX147 equivalent 20-lead SSOP is guaranteed over the –40°C to +85°C temperature range.