ICL7104-16CPL Intersil, ICL7104-16CPL Datasheet - Page 19

• 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

ICL7104 with ICL8052/8068 Integrating A/D Converter Equations
• Oscillator
CRYSTAL or RC (RC on -14 Part Only)
• Oscillator Period
• Integration Clock Frequency
• Integration Period
• 60/50Hz Rejection Criterion
• Optimum Integration Current
• Full Scale Analog Input Voltage
• Integrate Resistor
• Integrate Capacitor
• Integrator Output Voltage
• Output Count
• Output Type:
• Power Supply: ±15V, +5V
t
f
t
t
t
I
V
V
Binary Amplitude with Polarity and Overrange Bits.
OSC
CLOCK
INT
INT
INT
INT
R
Count
f
f
C
OSC
OSC
INFS
INT
I NT
OSC
/t
= 8192 x t
= 32768 x t
= 20µA
60Hz
(Typ) = 9V
= 1/f
=
(Typ) 200kHz
= 0.45/RC (ICL7104-14 Only)
(Typ) = 200mV to 2V = 2V
> 50pF and R
=
= f
(
------------------------------------------------------------ -
BufferG ain
8192
OSC
or t
OSC
INT
OSC
×
OSC
-------------- -
V
I
/t
V
I NT
R EF
50Hz
C
V
IN
(7104-14)
INT
INT
)
(7104-16)
OSC
×
(7104-14)
V
= Integer
=
=
IN FS
> 50K
(
------------------------------- -
(
------------------------------- -
t
t
IN T
IN T
C
V
IN T
IN T
) I
) I
(
(
REF
I NT
I NT
)
)
ICL7104
19
• Auto Zero Capacitor Values
• Reference Capacitor Value
• C
V++ = +15V
V- = -15V
V+ = +5V
V
If V
0.01µF < C
REF
REF
REF
≅ 1.75V
= (Buffer Gain) x C
not used, float output pin.
AZ
Count
< 1µF
=
32768
AZ
×
-------------- -
V
V
R EF
IN
(7104-16)