Datasheet

ADC0820-N
www.ti.com SNAS529C –JUNE 1999–REVISED MARCH 2013
Converter Characteristics
The following specifications apply for RD mode (pin 7 = 0), V
CC
= 5V, V
REF
(+) = 5V,and V
REF
(−) = GND unless otherwise
specified. Boldface limits apply from T
MIN
to T
MAX
; all other limits T
A
= T
j
= 25°C.
ADC0820BCN, ADC0820CCN,
ADC0820CCJ ADC0820BCV, ADC0820BCWM,
Limit
ADC0820CCWM, ADC0820CIWM
Parameter Conditions
Units
Tested Design Tested Design
Typ
(1)
Typ
(1)
Limit
(2)
Limit
(3)
Limit
(2)
Limit
(3)
Resolution 8 8 8 Bits
ADC0820BCN, BCWM ±½ ±½ LSB
ADC0820CCJ ±1 LSB
Total Unadjusted
Error
(4)
ADC0820CCN, CCWM, CIWM ±1 ±1 LSB
ADC0820CCMSA ±1 ±1 LSB
Minimum Reference
2.3 1.00 2.3 1.2 kΩ
Resistance
Maximum Reference
2.3 6 2.3 5.3 6 kΩ
Resistance
Maximum V
REF
(+)
V
CC
V
CC
V
CC
V
Input Voltage
Minimum V
REF
(−)
GND GND GND V
Input Voltage
Minimum V
REF
(+)
V
REF
(−) V
REF
(−) V
REF
(−) V
Input Voltage
Maximum V
REF
(−)
V
REF
(+) V
REF
(+) V
REF
(+) V
Input Voltage
Maximum V
IN
Input
V
CC
+0.1 V
CC
+0.1 V
CC
+0.1 V
Voltage
Minimum V
IN
Input
GND−0.1 GND−0.1 GND−0.1 V
Voltage
CS =V
CC
Maximum Analog
Input Leakage V
IN
=V
CC
3 0.3 3 µA
Current
V
IN
=GND −3 −0.3 −3 µA
Power Supply
V
CC
=5V±5% ±1/16 ±¼ ±1/16 ±¼ ±¼ LSB
Sensitivity
(1) Typicals are at 25°C and represent most likely parametric norm.
(2) Tested limits are ensured to TI's AOQL (Average Outgoing Quality Level).
(3) Design limits are specified but not 100% tested. These limits are not used to calculate outgoing quality levels.
(4) Total unadjusted error includes offset, full-scale, and linearity errors.
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