ICL7104-16CPL Intersil, ICL7104-16CPL Datasheet - Page 3

• Manufacturer Part Number: ICL7104-16CPL
• Description: 16 BIT A/D CONVERTER
• Manufacturer: Intersil

Specifications of ICL7104-16CPL

• Rohs Status: RoHS non-compliant
• Other names: NT5019

Pin Descriptions
PIN NO.
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
REFCAP2
REFCAP1
COMP-IN
SYMBOL
CLOCK 1
CLOCK 2
CLOCK3
AN. GND
BUF IN
MODE
CE/LD
MBEN
AN I/P
LBEN
HBEN
HBEN
BIT 1
V
SEN
R/H
A-Z
V+
REF
V-
(Continued)
OPTION
-16
-14
-16
-14
Least Significant Bit (LSB).
LOW BYTE ENABLE: If not in handshake mode (see pin 27) when LO (with CE/LD, pin 30)
activates low-order byte outputs, BITS 1-8. When in handshake mode (see pin 27), serves as a
low byte flag output. See Figures 11, 12, 13.
MID BYTE ENABLE: Activates Bits 9-16, see LBEN (pin 22)
HIGH BYTE ENABLE: Activates Bits 9-14, POL, OR, see LBEN (pin 22)
HIGH BYTE ENABLE: Activates POL, OR, see LBEN (pin 22).
RC oscillator pin: Can be used as clock output.
Clock Input: External clock or ocsillator.
Clock Output: Crystal or RC oscillator.
INPUT LO: Direct output mode where CE/LD, HBEN, MBEN and LBEN act as inputs directly
controlling byte outputs. If pulsed HI causes immediate entry into handshake mode (see Figure
13). If HI, enables CE/LD, HBEN, MBEN and LBEN as outputs. Handshake mode will be entered
and data output as in Figures 11 and 12 at conversion completion.
RUN/HOLD: Input HI conversions continuously performed every 2
pulses. Input LO conversion in progress completed, converter will stop in Auto-Zero 7 counts
before input integrate.
SEND ENABLE: Input controls timing of byte transmission in handshake mode. HI indicates
‘send’.
CHIP ENABLE/ LOAD: WITH MODE (PIN 27) LO, CE/LD serves as a master output enable;
when HI, the bit outputs and POL, OR are disabled. With MODE HI, pin serves as a LOAD strobe
(-ve going) used in handshake mode. See Figures 11 and 12.
Positive Logic Supply Voltage: Nominally +5V.
Analog Input: High Side.
Buffer Input: Buffer Analog to analog chip (ICL8052 or ICL8086).
Reference Capacitor: Negative Side.
Analog Ground: Input low side and reference low side.
Auto-Zero node.
Voltage Reference: Input (positive side).
Reference Capacitor: Positive side.
Comparator Input: From 8052/8068.
Negative Supply Voltage: Nominally -15V.
ICL7104
3
DESCRIPTION
17
(-16) or 2
15
(-14) clock