Radiation Hardened CMOS 8-Bit Flash Analog-to-Digital Converter
The Intersil is a CMOS 8-Bit Flash Converter designed for space applications where relatively low power, exceptional accuracy and very fast conversion speeds are a necessity. The HS-9008RH design differs substantially from most other available Flash Converters as it employs fully differential analog input sampling networks and amplifiers, as well as regenerative, offset nulled (error correcting) comparators. These circuit techniques improve noise performance and render the circuit much less sensitive to process and radiation induced device parametric shifts. Outstanding integral and differential linearity error is achieved through the use of a metal film resistor network which exhibits >10-bit linearity without trim. As a result of these innovations, the device operates with a single fixed reference supply as opposed to the multiple, adjustable references used in similar devices. This combination of features makes the HS-9008RH one of the best 8-Bit Flash Converters available in the Commercial, Military or Rad Hard markets. Specifications for Rad Hard QML devices are controlled by the Defense Supply Center in Columbus (DSCC). The SMD numbers listed here must be used when ordering. Detailed Electrical Specifications for these devices are contained in SMD 5962-96696. A "hot-link" is provided on our homepage for downloading. http://www.intersil.com/spacedefense/space.htm
Features
· Electrically Screened to SMD # 5962-96696· QML Qualified per MIL-PRF-38535 Requirements· Excellent Noise Rejection - Fully Differential Design· Superior Linearity. 0.5 LSB Typ· Single Reference Supply· Low Power. 330mW Typ· Sampling Rate (50ns Conversion Time). 20MHz· Total Dose Hardness. 300kRAD· Available with QML Class V or Class Q Screening
28 VSSD 27 VIN 26 VSSD 25 VSSA 24 VREF + 23 VDDA 21 B8 (MSB) B5 17 VSSA 16 VSSD 15 VDDD
VDDD 2 CLK 3 VDDD 4 VSSA 5 VREF - 6 VDDA 7 (LSB) CE2 13
ORDERING NUMBER HS9-9008RH/Proto HS0-9008RH-Q INTERNAL MKT. NUMBER HS9-9008RH/Proto HS0-9008RH-Q TEMP. RANGE (oC) 125 25
VSSD VIN VSSD VSSA VREF + VDDA OF B8 (MSB) B6 B5 VSSA VSSD VDDD
VDDD CLK VDDD VSSA VREF VDDA (LSB) CE1 CE2 VDDA
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. http://www.intersil.com 407-727-9207 | Copyright © Intersil Corporation 1999
SBDIP/ FLATPACK PACKAGE PIN CE1 NAME B8 OF VSSD VDDD CE2 CE1 VREFVIN VSSA CLK 1/2 R VREF+ VDDA DESCRIPTION (LSB) Output Data Bits Output Data Bits Output Data Bits Output Data Bits Output Data Bits Output Data Bits Output Data Bits (MSB) Output Data Bits Overflow Digital Ground Digital Supply Three-State Output Enable Three-State Output Enable Negative Reference Input Analog Signal In Analog Ground Clock Input Reference Midpoint Positive Reference Input Analog Supply 1 0 TRUTH TABLE - B8 Valid Three-State OF Valid Three-State
OUTPUT MFFS DSN cc256 VIN AMPS DYNAMIC LATCH MFFS OUTPUT MFFS
OUTPUT MFFS DSN AMPS DYNAMIC LATCH MFFS OUTPUT MFFS
OUTPUT MFFS VREF DSN cc1 AMPS DYNAMIC LATCH MFFS
CE1 CE2 VREF RESISTOR LADDER DIFFERENTIAL COMPARATOR ENCODER THREE-STATE OUTPUTS
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