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From: cyliao@eng.umd.edu (Chun-Yao Liao)
Newsgroups: comp.sys.next
Subject: Re: DSP info needed for A/D project
Message-ID: <1991Feb20.230932.4675@eng.umd.edu>
Date: 20 Feb 91 23:09:32 GMT
References: <5FEB91105638@uazhe0.physics.arizona.edu> <2a1j02ya05.=01@JUTS.ccc.amdahl.com>
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For your information about A/D converters, here goes a list of "good" ones

To save time, I will only list those 16 bits and up ADC

Micro Networks (508) 852-5400
	True 16-bit A/D combines allfunctions in single package.
	MN6400, self-calibrate, sampling up to 50 KHz true 16 bits
	sampling even in extended temperature range applications.
	It combines an inherent track and hold function,
	analog input buffer, reference, clock and
	control logic circuitry, ad a paralel data-bus driver in a single 
	package.
	88db SNR, -98db harmonic sampling at 1kHZ full scale analog input.
	$175/100
Atmel Corp. (408) 441 0311
	Dual 18 bit ADC uses single +5v supply
	AT76C120. conversion speed less tahn 10 us, input bandwidth of 
	50kHZ, guaranteed linearity accuracy level of 15 bits.
	it resolve input signals of less than 10 uV. 86 to 90 db SNR. on chip
	sample-and hold amp, auto linearity error correction. output code
	is serially in 2's complement
	$25/1000 available now
UltraAnalog, Inc 415 657 2227
	20 bit audio A/D (eleminates anti-aliasing filter)
	ADC 20048 20-bit. 128 times oversampling, noise-shaping algorithm
	that eliminates the need for anti-aliasing filters. 40 times 
	improvement in differenntial linearity compared to conventional. 108
	db dynamic range, frequency response flat to withing +-.05db.
	THD +N of -96db. Operate from +-15v and +-5v
	$199/100
Datel, Inc 508 339 3000
	ADS930 16 bit, 500kHz. differential input and on board 16-word
	FIFO memory. two control pings allow users to read the memory when half
	full, full, or on command. -95db THD, 95db SNR
	+5v and +-15v, 2.1W
	$374
Analogic Corp 508 977 3000
	ADC4355/56/57 low-noise, low-distortion 16 bit. 100 and 200 kHz
	96db dynamic range, 95db SNR, -103db THD at 1kHz. +-15v and +5v
	$237.15/$226.75/$264.15 in quant of 100

hope these helps.

--
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