ADC12030CIWM National Semiconductor, ADC12030CIWM Datasheet - Page 6

• Manufacturer Part Number: ADC12030CIWM
• Description: Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold
• Manufacturer: National Semiconductor

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STATIC CONVERTER CHARACTERISTICS
TUE
UNIPOLAR DYNAMIC CONVERTER CHARACTERISTICS
S/(N+D)
DIFFERENTIAL DYNAMIC CONVERTER CHARACTERISTICS
S/(N+D)
REFERENCE INPUT, ANALOG INPUTS AND MULTIPLEXER CHARACTERISTICS
C
C
C
C
Symbol
The following specifications apply for V
sion mode, f
ADC12030, ADC12032, ADC12034 and ADC12038, R
input with fixed 2.048V common-mode voltage, and 10(t
for T
REF
A/D
CH
MUXOUT
Converter Electrical Characteristics
A
= T
Offset Error
Total Unadjusted Error
Multiplexer Channel
to Channel Matching
Power Supply Sensitivity
Output Data from
“12-Bit Conversion of Offset”
(see Table 5 )
Output Data from
“12-Bit Conversion of Full-Scale”
(see Table 5 )
Signal-to-Noise Plus
Distortion Ratio
−3 dB Full Power Bandwidth
Signal-to-Noise Plus
Distortion Ratio
−3 dB Full Power Bandwidth
Reference Input Capacitance
A/DIN1 and A/DIN2 Analog
Input Capacitance
A/DIN1 and A/DIN2 Analog
Input Leakage Current
CH0–CH7 and COM
Input Voltage
CH0–CH7 and COM
Input Capacitance
MUX Output Capacitance
J
CK
= T
= f
MIN
SK
+ Integral Linearity Error
− Integral Linearity Error
to T
Parameter
= 8 MHz for the ADC12H030, ADC12H032, ADC12H034 and ADC12H038, f
MAX
+ Full-Scale Error
− Full-Scale Error
; all other limits T
Offset Error
+
= V
A
A
8-bit + sign mode,
after Auto-Zero (Note 13)
V
8-bit + sign mode
after Auto-Zero
(Notes 12, 13, 14)
V
V
(Note 20)
(Note 20)
f
f
f
V
f
f
f
V
V
V
+ = V
IN
IN
IN
IN
IN
IN
IN
+
REF
IN
IN
IN
IN
= T
(+) = V
= 1 kHz, V
= 20 kHz, V
= 40 kHz, V
= 1 kHz, V
= 20 kHz, V
= 40 kHz, V
= +5V
= 5 V
=
= +5.0V or
= 0V
J
= +4.096V
D
±
+ = +5.0 V
= 25˚C. (Notes 7, 8, 9)
5V, where S/(N+D) drops 3 dB
S
PP
CK
IN
±
= 25 , source impedance for V
10%
, where S/(N+D) drops 3 dB
(−) = + 2.048V
) acquisition time unless otherwise specified. Boldface limits apply
IN
IN
Conditions
IN
IN
IN
IN
(Continued)
= 5 V
=
= 5 V
= 5 V
=
=
6
DC
±
±
±
5V, V
, V
5V, V
5V, V
PP
REF
PP
PP
, V
, V
, V
REF
+ = +4.096 V
REF
REF
REF
REF
REF
+
+
+
+
= 5.0V
+
+ = 5.0V
= 5.0V
= 5.0V
= 5.0V
= 5.0V
DC
REF
, V
(Note 10)
REF
Typical
+ and V
±
±
±
±
±
±
±
69.4
68.3
65.7
77.0
73.9
67.0
0.05
31
40
85
75
10
20
0.5
0.5
0.5
0.5
0.5
0.1
− = 0 V
CK
REF
= f
DC
−
GND − 0.05
V
SK
(Note 11)
, 12-bit + sign conver-
A
Limits
+ + 0.05
4095
4093
25 , fully-differential
±
±
±
±
±
= 5 MHz for the
+10
−10
±
1/2
3/4
1.5
1.5
1.0
1
LSB (max)
LSB (max)
LSB (max)
LSB (max)
LSB (max)
LSB (max)
LSB (max)
LSB (min)
LSB (min)
µA (max)
(Limits)
V (max)
V (min)
Units
LSB
LSB
LSB
kHz
kHz
dB
dB
dB
dB
dB
dB
pF
pF
pF
pF