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Intersil Corporation - Sampling A/D Converter

Numéro de référence HI5812
Description Sampling A/D Converter
Fabricant Intersil Corporation 
Logo Intersil Corporation 





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HI5812 fiche technique
Semiconductor
HI5812
August 1997
CMOS 20 Microsecond, 12-Bit, Sampling A/D
Converter with Internal Track and Hold
Features
Description
• Conversion Time . . . . . . . . . . . . . . . . . . . . . . . . . . . 20µs
• Throughput Rate . . . . . . . . . . . . . . . . . . . . . . . .50 KSPS
• Built-In Track and Hold
• Guaranteed No Missing Codes Over Temperature
• Single Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . +5V
• Maximum Power Consumption. . . . . . . . . . . . . . .25mW
• Internal or External Clock
The HI5812 is a fast, low power, 12-bit, successive
approximation analog-to-digital converter. It can operate from
a single 3V to 6V supply and typically draws just 1.9mA when
operating at 5V. The HI5812 features a built-in track and hold.
The conversion time is as low as 15µs with a 5V supply.
The twelve data outputs feature full high speed CMOS three-
state bus driver capability, and are latched and held through a
full conversion cycle. The output is user selectable: (i.e.) 12-
bit, 8-bit (MSBs), and/or 4-bit (LSBs). A data ready flag, and
conversion-start inputs complete the digital interface.
Applications
• Remote Low Power Data Acquisition Systems
• Digital Audio
• DSP Modems
• General Purpose DSP Front End
µP Controlled Measurement System
• Professional Audio Positioner/Fader
An internal clock is provided and is available as an output.
The clock may also be over-driven by an external source.
Ordering Information
PART
NUMBER
HI5812JIP
HI5812KIP
HI5812JIB
HI5812KIB
HI5812JIJ
HI5812KIJ
INL (LSB)
(MAX OVER
TEMP.)
TEMP.
RANGE
(oC)
PACKAGE
PKG.
NO.
±1.5 -40 to 85 24 Ld PDIP E24.3
±1.0 -40 to 85 24 Ld PDIP E24.3
±1.5 -40 to 85 24 Ld SOIC M24.3
±1.0 -40 to 85 24 Ld SOIC M24.3
±1.5 -40 to 85 24 Ld CERDIP F24.3
±1.0 -40 to 85 24 Ld CERDIP F24.3
Pinout
HI5812
(PDIP, CERDIP, SOIC)
TOP VIEW
DRDY 1
(LSB) D0 2
D1 3
D2 4
D3 5
D4 6
D5 7
D6 8
D7 9
D8 10
D9 11
VSS 12
24 VDD
23 OEL
22 CLK
21 STRT
20 VREF-
19 VREF+
18 VIN
17 VAA+
16 VAA-
15 OEM
14 D11 (MSB)
13 D10
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © Harris Corporation 1997
6-1789
File Number 3214.4

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