Analog-to-Digital Converters Specifications

Analog-to-Digital Conversion Type


	Analog-to-Digital Conversion Type
	Your choices are...
	Flash		A flash ADC applies the input in parallel to many fast comparators whose thresholds are equally spaced throughout the desired input voltage range, typically 1V. At any moment, all the comparators that have thresholds below the input voltage are on, and the rest are off. A series of latching AND gates connect between adjacent comparators so that only the gate at the boundary between the on and off comparators is active. The input clock latches the AND gate outputs, and a pipelined circuit converts this one-out-of-N input to a binary output. Flash ADCs need 2N comparators to generate an N-bit output, and thus they tend to have no more than 6 to 10 output bits. Because the input has to drive all the comparators in parallel, the input capacitance is a major limitation to the bandwidth. The sampling bit synchronizer can often use this input capacitance as one element of the noise filter.
	Half-flash		An ADC that determines its output code by digitally combining the results of two sequentially performed, lower-resolution flash conversions.
	Integrator		An ADC whose output code represents the average value of the input voltage over a given time interval.
	Delta Sigma (Modulator)		A high-accuracy circuit that samples at a higher rate and lower resolution than is needed and (by means of feedback loops) pushes the quantization noise above the frequency range of interest. This out-of-band noise is typically removed by digital filters.
	Successive Approximation		Successive Approximation ADC sequentially compares a series of binary-weighted values with an analog input to produce an output digital word in n steps, where n is the bit resolution of the ADC.
	Voltage-to-Frequency		Voltage-to-frequency ADCs convert an input voltage to an output pulse train with a frequency proportional to the input voltage. Output frequency is determined by counting pulses over a fixed time interval and the voltage is inferred from the known relationship. Voltage-to-frequency conversion has a high degree of noise rejection, because the input signal is effectively integrated over the counting interval. Voltage-to-frequency conversion is commonly used to convert slow and often noisy signals. It is also useful for remote sensing applications in noisy environments. The input voltage is converted to a frequency at the remote location and the digital pulse train is transmitted over a pair of wires to the counter. This eliminates the noise that can be introduced in the transmission of an analog signal over a long distance.
	Other		Any specialized or unlisted method of analog-to-digital conversion.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Form Factor


	Form Factor
	Your choices are...
	Integrated Circuit (IC)		Devices are integrated circuit (IC) chips that mount on printed circuit boards (PCBs).
	Printed Circuit Board (PCB)		Devices are printed circuit boards (PCBs) that attach to enclosures or plug directly into computer backplanes.
	Panel / Chassis Mount		Devices attach to a panel or bolt onto a chassis.
	Modular Bay / Slot System		Devices stack in modular bays or slots and can be interfaced to other units.
	Rack Mount		Devices are rack-mounted and fit inside enclosures such as a standard 19” telecommunications rack.
	DIN Rail		Devices mount on a standard DIN rail. DIN is an acronym for Deutsches Institut für Normung (DIN), a German national organization for standardization.
	Stand Alone		Devices are benchtop or floor-standing units with a full casing or cabinet and an integral interface.
	Other		Other unlisted form factors.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Computer Bus


	Computer Bus
	Your choices are...
	CompactPCI		This is a high performance industrial bus that uses the electrical standards of the PCI bus packaged in a Eurocard. The specifications of the CompactPCI bus were developed and maintained by the PCI Industrial Computers Manufacturers Group (PICMG). It is used extensively in systems that require high speed transfer of data, such as data communication routers and switches, real-time machine control, real-time data acquisition, military systems, etc
	IBM Microchannel		The Microchannel bus was designed by IBM to replace the ISA bus. It is much faster, and is capable of Plug & Play (adding a card to a Microchannel computer does not change the interrupt and DMA settings on the card). These functions are done via software. Microchannel slots are available almost exclusively in IBM's PS/2® line.
	IEEE 1394 (Firewire®)		A companion to USB, IEEE 1394 is a very high-speed serial bus (400 Megabit - 1 Gigabit). It was designed to replace all external high-speed peripheral connections to personal computers, including hard disks, CD-ROM's, DVD's, graphics cards, high-speed scanners, direct video, monitors, etc.
	Industry Pack® Bus (IP)		Industry Pack® is a Mezzanine bus generally used to provide I/O capabilities to general purpose computer systems. It was conceived by Greenspring Computers, who maintain the specification. It has been adopted by a number of CPU manufacturers.
	ISA / EISA		Industry Standard Architecture. ISA is a standard for I/O buses that was set back in 1984 when IBM was the standard. The ISA bus can handle 16-bit data transfers at a clock speed of 8 MHz. It is also capable of handling memory under 16 MB. EISA, or Extended ISA, is an improvement over the ISA bus. It runs at 8 MHz, is capable of 32-bit data transfer, and can access all memory in the system.
	Mac PCI (Nubus)		Peripheral Component Interconnect. A local bus standard developed by the Intel® Corporation. PCI is used on newer versions of Apple's® Macintosh® line. Nubus was the expansion bus for Apple computers from the Macintosh II through the Performa® line.
	MIX Bus		Modular Interface eXtension. The MIX bus is a high performance stacking and communications interface to connect expansion modules to a VMEbus baseboard. The MIX bus supports 32-bit data transfers and 4 GB of memory addressing capability, as well as DMA transfers.
	Multibus (I & II)		Multibus is a modular computer-systems architecture used in embedded applications in telecommunications, medical-devices, manufacturing automation, networking, and other market areas.
	*PC/104 (PC/104-Plus, EBX)*		PC/104 gets its name from the desktop personal computers designed by IBM (PCs), and from the number of pins used to connect the cards together (104). PC/104 cards are much smaller than ISA-bus cards and stack together eliminating the need for a motherboard, back plane, and/or card cage. PC/104-Plus incorporates the PCI bus into the PC/104 form-factor for faster data transfer. EBX (Embedded Board eXpandable) defines a 5.75" x 8" form factor large enough to implement a powerful single-board computer. It supports PC/104 expansion.
	PCI		Peripheral Component Interconnect. PCI is a local bus system designed for high-end computer systems, such as the Pentium®. It transfers 32 or 64 bits of data at a clock speed of 33 MHz. The PCI bus supports 3 to 5 critical peripherals, which are either integrated directly onto the motherboard or added via expansion cards. The PCI bus fully supports cards developed for standard I/O buses.
	PCMCIA (PC Card)		PCMCIA devices (PC Cards) are credit-card-sized peripherals predominantly used in laptop computers. The PCMCIA adapter takes the place of a COM port on a standard bus. The card is plugged into a 68-pin host socket that is connected either to the motherboard or an expansion bus. An adapter then translates the PCMCIA signals into signals usable by the computer's bus.
	PXI Bus		PCI eXtensions for Instrumentation (PXI). This superset of CompactPCI adds timing and triggering functions, imposes requirements for documenting environmental tests, and establishes a standard Windows-based software framework.
	PMC Bus		The PMC Bus is actually a form factor, not a bus -- it is electrically the same as the PCI Bus, but the shape of the card and the bus connectors are different. Designed for rugged implementations, the PMC form factor provides a secure mounting platform for PMC VME mezzanine boards.
	STD Bus		Often referred to as the "Blue Collar Bus" because of its rugged design and small size, the STD Bus was originally designed for factory and industrial environments. It uses 16-bit architecture.
	SUN Sbus		Designed by Sun in 1989, the SBus board was the standard I/O inter-connect for Sun computers, which typically run under the Solaris or SunOS flavor of the UNIX operating system.
	USB		Universal Serial Bus. The 12 Megabit serial bus designed to replace low-to-medium speed peripheral device connections to Personal Computers, including keyboards, mice, modems, printers, joysticks, audio functions, monitor controls, etc.
	VME Bus		VersaModule Eurocard. A 32-bit bus used in industrial, commercial and military applications. VME64 is an expanded version that provides 64-bit data transfer and addressing.
	VXI / MXI Bus		VME eXtensions for Instrumentation. Motorola developed the VME standard, with others, in the late 1970s. A standard for many electronic platforms, it defines electrical and mechanical backplane characteristics.
	Other		Unlisted, specialized, or proprietary configuration.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

What do you want to do?
		Show All Analog-to-Digital Converters Companies
		Learn more about Analog-to-Digital Converters
		Search By Specification

Part #	Distributor	Manufacturer	Product Category	Description
AD2S80AJD	Newark	ANALOG DEVICES	Special Function	Resolver to Digital Converter IC; Package/Case:40-CDIP; Accuracy: 8; Bus Frequency:20kHz; IC Function:Resolver to Digital Converter IC; Interface Type:Parallel; Leaded Process Compatible:No; No. of Bits:10/12/14/16 RoHS Compliant: No
AD5439YRUZ-REEL7TR-ND	Digi-Key	Analog Devices Inc	Integrated Circuits (ICs)	IC DAC DUAL 10BIT MULT 16TSSOP
AD9236BCPZ-80-ND	Digi-Key	Analog Devices Inc	Integrated Circuits (ICs)	IC ADC 12BIT SGL 80MSPS 32LFCSP
AD7245AAPZ-ND	Digi-Key	Analog Devices Inc	Integrated Circuits (ICs)	IC DAC 12BIT LC2MOS 28-PLCC
DAC8408FPCZ-ND	Digi-Key	Analog Devices Inc	Integrated Circuits (ICs)	IC DAC 8BIT QUAD MULTIPLY 28PLCC
296-19588-1-ND	Digi-Key	Texas Instruments	Integrated Circuits (ICs)	IC DAC 16BIT VOLT-OUT LP 14-QFN
MAX172BCNG+-ND	Digi-Key	Maxim Integrated Products	Integrated Circuits (ICs)	IC ADC CMOS 12BIT LP HISPD 24DIP
FMS3810KRCT-ND	Digi-Key	Fairchild Semiconductor	Integrated Circuits (ICs)	DAC 8BIT TRIPLE 100MHZ 48LQFP
HI5728/6IN-ND	Digi-Key	Intersil	Integrated Circuits (ICs)	DAC DUAL 10BIT 60MHZ 4- LQFP
HI5767/4CB-T-ND	Digi-Key	Intersil	Integrated Circuits (ICs)	CONV A/D 10BIT 40MSPS 28-SOIC