AD7851 Series

14-Bit, 333 kSPS, Serial Sampling A/D Converter

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

14-Bit, 333 kSPS, Serial Sampling A/D Converter

Part	Architecture	Number of Inputs	Mounting Type	Voltage - Supply, Digital	Number of A/D Converters	Number of Bits	Package Length	Package Name	Package Width	Reference Type	Voltage - Supply, Analog	Input Type	Operating Temperature (Max)	Operating Temperature (Min)	Sampling Rate (Per Second)	Configuration	Ratio - ADC	Ratio - S/H	Data Interface
Analog Devices Inc./Maxim Integrated AD7851ARZ	SAR	1	Surface Mount	5 V	1 count	14 bits	0.295 in	24-SOIC	7.5 mm	External Internal	5 V	Pseudo-Differential	125 °C	-40 °C	333 kHz	S/H-ADC	1	1	SPI
Analog Devices Inc./Maxim Integrated AD7851ARZ-REEL	SAR	1	Surface Mount	5 V	1 count	14 bits	0.295 in	24-SOIC	7.5 mm	External Internal	5 V	Pseudo-Differential	125 °C	-40 °C	333 kHz	S/H-ADC	1	1	SPI
Analog Devices Inc./Maxim Integrated AD7851KR-REEL			Surface Mount		2 count	14 bits	0.295 in	24-SOIC	7.5 mm				85 °C	0 °C	333 kHz
Analog Devices Inc./Maxim Integrated AD7851ARSZ	SAR	1	Surface Mount	5 V	1 count	14 bits	0.209 in	24-SSOP	5.3 mm	External Internal	5 V	Pseudo-Differential	125 °C	-40 °C	333 kHz	S/H-ADC	1	1	SPI
Analog Devices Inc./Maxim Integrated AD7851ANZ	SAR	1	Through Hole	5 V	1 count	14 bits	0.3 in	24-DIP 24-PDIP	7.62 mm	External Internal	5 V	Pseudo-Differential	125 °C	-40 °C	333 kHz	S/H-ADC	1	1	SPI
Analog Devices Inc./Maxim Integrated AD7851KR			Surface Mount		2 count	14 bits	0.295 in	24-SOIC	7.5 mm				85 °C	0 °C	333 kHz
Analog Devices Inc./Maxim Integrated AD7851KRZ-REEL	SAR	1	Surface Mount	5 V	1 count	14 bits	0.295 in	24-SOIC	7.5 mm	External Internal	5 V	Pseudo-Differential	125 °C	0 °C	285 kHz	S/H-ADC	1	1	SPI
Analog Devices Inc./Maxim Integrated AD7851ARSZ-REEL	SAR	1	Surface Mount	5 V	1 count	14 bits	0.209 in	24-SSOP	5.3 mm	External Internal	5 V	Pseudo-Differential	125 °C	-40 °C	333 kHz	S/H-ADC	1	1	SPI
Analog Devices Inc./Maxim Integrated AD7851KRZ	SAR	1	Surface Mount	5 V	1 count	14 bits	0.295 in	24-SOIC	7.5 mm	External Internal	5 V	Pseudo-Differential	125 °C	0 °C	285 kHz	S/H-ADC	1	1	SPI

Catalog

14-Bit, 333 kSPS, Serial Sampling A/D Converter

Description

The AD7851 is a high speed, 14-bit ADC which operate from a single 5V power supply. The ADC powers-up with a set of default conditions at which time it can be operated as a read-only ADC. The ADC contains self-calibration and system calibration options to ensure accurate operation over time and temperature and has a number of power down options for low power applications.The AD7851 is capable of 272kHz throughput rate. The input track-and-hold acquires a signal in 0.33 µs and features a pseudo-differential sampling scheme. The AD7851 has the added advantage of two input voltage ranges ( 0 to VREF, and -VREF/2 to +VREF/2 centered about VREF/2). Input signal range is to VDDand the part is capable of converting full-power signals to 140 kHz.CMOS construction ensures low power dissipation (60 mW typ) with power-down mode (5 µW typ). The part is available in 24- pin, 0.3 inch-wide dual-in-line package (DIP), 24 lead small outline (SOIC) and 24 lead small shrink outline (SSOP) packages.PRODUCT HIGHLIGHTSSingle 5 V supply.Operates with reference voltages from 4 V to VDD.Analog input ranges from 0 V to VDD.System and self-calibration including power-down mode.Versatile serial I/O port.APPLICATIONSDigital Signal ProcessingSpeech Recognition and SynthesisSpectrum AnalysisDSP Servo ControlInstrumentation and Control SystemsHigh Speed ModemsAutomotive