ICL8052ACPD Intersil Corporation, ICL8052ACPD Datasheet

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ICL8052ACPD

Manufacturer Part Number
ICL8052ACPD
Description
Precision Chip Pairs for A/D Conversion ICL8052ACPDPrecision 4 1/2 Digit, A/D Converter ICL8052ACPD14-Bit/16-Bit, Microprocessor- Compatible, 2-Chip, A/D Converter
Manufacturer
Intersil Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ICL8052ACPD
Manufacturer:
INTERIL
Quantity:
1 000
Part Number:
ICL8052ACPD
Manufacturer:
HAR
Quantity:
20 000
August 1997
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
Features
• 16-Bit/14-Bit Binary Three-State Latched Outputs Plus
• Ideally Suited for Interface to UARTs and
• Conversion on Demand or Continuously
• Guaranteed Zero Reading for 0V Input
• True Polarity at Zero Count for Precise Null Detection
• Single Reference Voltage for True Ratiometric
• Onboard Clock and Reference
• Auto-Zero, Auto-Polarity
• Accuracy Guaranteed to 1 Count
• All Outputs TTL Compatible
• Status Signal Available for External Sync, A/Z in
Polarity and Overrange
Microprocessors
Operation
Preamp, Etc.
4V Analog Input Range
5-6
Description
The ICL7104, combined with the ICL8052 or ICL8068,
forms a member of Intersil’ high performance A/D converter
family. The ICL7104-16, performs the analog switching and
digital function for a 16-bit binary A/D converter, with full
three-state output, UART handshake capability, and other
outputs for easy interfacing. The ICL7014-14 is a 14-bit
version. The analog section, as with all Intersil’ integrating
converters, provides fully precise Auto-Zero, Auto-Polarity
(including
very high input impedance, true input integration over a
constant
rationmetric operation, over-range indication, and a
medium quality built-in reference. The chip pair also offers
optional input buffer gain for high sensitivity applications, a
built-in clock oscillator, and output signals for providing an
external Auto-Zero capability in preconditioning circuitry,
synchronizing external multiplexers, etc.
Ordering Information
ICL8052/ICL7104,
ICL8052CPD
lCL8052CDD
lCL8052ACPD
ICL8052ACDD
ICL8068CDD
ICL8068ACDD
lCL8068ACJD
ICL7104-14CPL
lCL7104-16CPL
PART NUMBER
ICL8068/ICL7104
Compatible, 2-Chip, A/D Converter
period
0 null indication), single reference operation,
14-Bit/16-Bit, Microprocessor-
RANGE (
for
TEMP.
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
maximum
o
C)
14 Ld PDIP
14 Ld CERDIP
14 Ld PDIP
14 Ld CERDIP
14 Ld CERDIP
14 Ld CERDIP
14 Ld CERDIP
40 Ld PDIP
40 Ld PDIP
PACKAGE
EMI
File Number
rejection,
E14.3
F14.3
E14.3
F14.3
F14.3
F14.3
F14.3
E40.6
E40.6
PKG.
NO.
3091.1
fully

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ICL8052ACPD Summary of contents

Page 1

... All Outputs TTL Compatible • 4V Analog Input Range • Status Signal Available for External Sync, A/Z in Preamp, Etc. CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999 ICL8052/ICL7104, ICL8068/ICL7104 14-Bit/16-Bit, Microprocessor- Compatible, 2-Chip, A/D Converter Description The ICL7104, combined with the ICL8052 or ICL8068, forms a member of Intersil’ ...

Page 2

ICL8052/ICL7104, ICL8068/ICL7104 Pinouts ICL8052/ICL8068 (CERDIP, PDIP) TOP VIEW INT OUT -1.2V COMP OUT 2 13 +BUFF IN REF CAP 3 12 +INT IN REF BYPASS 4 11 -INT IN V GND 5 10 -BUFF IN REF REF ...

Page 3

ICL8052/ICL7104, ICL8068/ICL7104 Pin Descriptions PIN NO. SYMBOL OPTION 1 V++ Positive Supply Voltage: Nominally +15V. 2 GND Digital Ground: 0V, ground return. 3 STTS Status Output: HI during integrate and deintegrate until data is latched. LO when analog section is ...

Page 4

ICL8052/ICL7104, ICL8068/ICL7104 Pin Descriptions (Continued) PIN NO. SYMBOL OPTION 25 CLOCK 1 Clock Input: External clock or ocsillator. 26 CLOCK 2 Clock Output: Crystal or RC oscillator. 27 MODE INPUT LO: Direct output mode where CE/LD, HBEN, MBEN and LBEN ...

Page 5

ICL8052/ICL7104, ICL8068/ICL7104 Absolute Maximum Ratings ICL8052, ICL8068 Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 6

ICL8052/ICL7104, ICL8068/ICL7104 ICL7104 Electrical Specifications PARAMETER Switch Switch 1 Switches 2, 3 Switches Switch Leakage Clock Frequency (Note 9) Supply Currents +5V Supply Current All outputs high impedance +5V Supply Current -5V Supply Current ...

Page 7

ICL8052/ICL7104, ICL8068/ICL7104 ICL8068 Electrical Specifications PARAMETER SYMBOL Temperature Coefficient Supply Voltage Range Supply Current Total ICL8052 Electrical Specifications PARAMETER SYMBOL EACH OPERATIONAL AMPLIFIER Input Offset Voltage Input Current (Either Input) (Note 11) Common-Mode Rejection Ratio Non-Linear Component of Common- Mode ...

Page 8

ICL8052/ICL7104, ICL8068/ICL7104 System Electrical Specifications: ICL8068/ICL7104 PARAMETER Zero Input Reading V Ratiometric Error (Note 13) V Linearity Over Full Scale (Error of -4V Reading from Best Straight Line) Differential Linearity (Difference -4V between Worst Case Step of Adjacent Counts and ...

Page 9

ICL8052/ICL7104, ICL8068/ICL7104 8052A/ 8068A FIGURE 2. FULL 18-BIT THREE-STATE OUTPUT CONVERT MODE CE/LD R POL MSB 7104 8 8052A/ 8068A 8 LSB HBEN MBEN LBEN CONTROL FIGURE 3. VARIOUS COMBINATIONS OF BYTE DISABLES CE/LD AS INPUT t BEA ...

Page 10

ICL8052/ICL7104, ICL8068/ICL7104 TABLE 1. DIRECT MODE TIMING REQUIREMENTS (Note: Not tested in production) SYMBOL DESCRIPTION t XBEN (Min) Pulse Width. BEA t Data Access Time from XBEN. DAB t Data Hold Time from XBEN. DHB t CE/LD Min. Pulse Width. ...

Page 11

ICL8052/ICL7104, ICL8068/ICL7104 t CWH CLOCK 1 H (PIN 25 EITHER: MODE PIN L OR INTERNAL LATCH PULSE IF MODE “HI” UART INTERNAL MODE NORM t CEL H CE/ SEN H DON’T CARE (EXTERNAL ...

Page 12

ICL8052/ICL7104, ICL8068/ICL7104 R INT AN I/P BUFFER INTEGRATOR - - REF 4 C REF R INT AN I/P BUFFER INTEGRATOR - - ...

Page 13

ICL8052/ICL7104, ICL8068/ICL7104 TABLE 3. THREE-STATE BYTE FORMATS AND ENABLE PINS HBEN ICL7104-16 POL O/R B16 B15 ICL7104-14 POL O/R TABLE 4. TYPICAL COMPONENT VALUES (V++ = +15V 5V 5V -15V, f ICL8052/8068 WITH Full ...

Page 14

ICL8052/ICL7104, ICL8068/ICL7104 Component Value Selection For optimum performance of the analog section, care must be taken in the selection of values for the integrator capacitor and resistor, auto-zero capacitor, reference voltage, and conversion rate. These values must be chosen to ...

Page 15

ICL8052/ICL7104, ICL8068/ICL7104 Detailed Description DIGITAL SECTION The digital section includes the clock oscillator circuit, a 16-bit or 14-bit binary counter with output latches and TTL- compatible three-state output drivers, polarity, over-range and control logic and UART handshake logic, as shown ...

Page 16

ICL8052/ICL7104, ICL8068/ICL7104 INTEGRATOR OUTPUT INTERNAL CLOCK INTERNAL LATCH STATUS OUTPUT RUN/HOLD INPUT Run/Hold Input When the Run/Hold input is connected left open (this input has pullup resistor to ensure a high level when the pin is left ...

Page 17

ICL8052/ICL7104, ICL8068/ICL7104 Entry into the handshake mode will occur if either of two conditions are fulfilled; first, if new data is latched (i.e., a conversion is completed) while MODE pin (pin 27) is high, in which case entry occurs at ...

Page 18

ICL8052/ICL7104, ICL8068/ICL7104 ZERO-CROSSING OCCURS INTEGRATOR OUTPUT INTERNAL CLOCK INTERNAL LATCH STATUS OUTPUT MODE INPUT UART INTERNAL MODE NORM SEN INPUT CE/LOAD HBEN HIGH BYTE DATA LBEN LOW BYTE DATA LBEN MODE HIGH ACTIVATES CE/LD, HBEN, LBEN LOW BYTE DATA DON’T ...

Page 19

ICL8052/ICL7104, ICL8068/ICL7104 POSITIVE TRANSITION CAUSES ENTRY INTO UART MODE INTERNAL CLOCK INTERNAL LATCH STATUS OUTPUT MODE INPUT UART INTERNAL NORM MODE SEN INPUT CE/LOAD AS OUTPUT HBEN HIGH BYTE DATA MBEN MIDDLE BYTE DATA LBEN LOW BYTE DATA DON’T CARE ...

Page 20

ICL8052/ICL7104, ICL8068/ICL7104 Power Supply Sequencing Because of the nature of the CMOS process used to fabricate the ICL7104, and the multiple power supplies used, there are certain conditions of these supplies under which a disabling and potentially damaging SCR action ...

Page 21

... All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification. Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...

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