®
ISO8 08
ISO808
Isolated 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
FEATURES
q 100kHz SAMPLING RATE q 1500Vrms ISOLA...
®
ISO8 08
ISO808
Isolated 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
FEATURES
q 100kHz SAMPLING RATE q 1500Vrms ISOLATION CONTINUOUS q 10µS CONVERSION TIME q 12-BIT SERIAL OUTPUT q SINGLE +5V SUPPLY q 28-PIN 0.6" PLASTIC DIP
DESCRIPTION
The ISO808 is a low-power isolated sampling ADC using state-of-the-art
CMOS structures and high
voltage capacitors. The ISO808 contains a complete 12-bit capacitor based SAR, ADC with S/H, clock, reference, µP interface, serial out and galvanic isolation. Laser-trimmed scaling resistors provide standard industrial input ranges including ±10V, ± 5V, 0-5V, 0-4V. They are available in 28-pin 0.6" wide plastic DIP and are specified over the industrial temperature range of –40°C to +85°C.
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APPLICATIONS
q INDUSTRIAL PROCESS CONTROL q PC-BASED DATA ACQUISITION TEST EQUIPMENT
Isolation Barrier
Successive Approximation Register and Control Logic
R/C
20kΩ R1IN 10kΩ R2IN 5kΩ R3IN CAP Internal +2.5V Ref 4kΩ REF 20kΩ
Clock
BUSY
Serial Data Out Data Clock
Serial Data
SB/BTC
International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111 Twx: 910-952-1111 Internet: http://www.burr-brown.com/ FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
©
1996 Burr-Brown Corporation
PDS-1317B
Printed in U.S.A. October, 1996
Datasheet pdf - ht...