AD1556 Series

Digital Filter/Decimator for 24-Bit Sigma-Delta A/D Converter

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

Digital Filter/Decimator for 24-Bit Sigma-Delta A/D Converter

Part	Input Type	Ratio - ADC	Ratio - S/H	Data Interface	Mounting Type	Reference Type	Package / Case	Voltage - Supply, Analog (Min)	Voltage - Supply, Analog (Max)	Number of Bits	Package Length	Package Name	Package Width	Configuration	Voltage - Supply, Digital (Min)	Voltage - Supply, Digital (Max)	Architecture	Operating Temperature (Min)	Operating Temperature (Max)	Number of Inputs	Sampling Rate (Per Second)	Number of A/D Converters
Analog Devices Inc./Maxim Integrated AD1556ASZ	Single Ended	1	1	SPI	Surface Mount	External	44-QFP	2.85 V	5.25 V	24 bits	10 mm	44-MQFP	10 mm	MUX-PGA-ADC	2.97 V	5.25 V	Sigma-Delta	-55 °C	85 °C	2	16 kHz	1 count
Analog Devices Inc./Maxim Integrated AD1556ASRL					Surface Mount		44-QFP			24 bits	10 mm	44-MQFP	10 mm					-55 °C	85 °C		256 kHz	1 count
Analog Devices Inc./Maxim Integrated AD1556AS					Surface Mount		44-QFP			24 bits	10 mm	44-MQFP	10 mm					-55 °C	85 °C		256 kHz	1 count

Catalog

Digital Filter/Decimator for 24-Bit Sigma-Delta A/D Converter

Description

The AD1555 is a complete sigma-delta modulator, combined with a programmable gain amplifier, intended for low frequency, high dynamic range measurement applications. The AD1555 outputs a ones-density bit stream proportional to the analog input. When used in conjunction with the AD1556 digital filter/decimator, the industry's highest performance ADC at a bandwidth of 1+ kHz is realized.The continuous-time analog modulator input architecture avoids the need for an external anti-alias filter. The programmable gain front end simplifies system design, extends the dynamic range, and reduces system board area. Low operating power and standby modes makes the AD1555 ideal for remote battery-powered data acquisition systems.