adc12032 National Semiconductor Corporation, adc12032 Datasheet - Page 6

• Manufacturer Part Number: adc12032
• Description: Self-calibrating 12-bit Plus Sign Serial I/o A/d Converters With Mux And Sample/hold
• Manufacturer: National Semiconductor Corporation

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STATIC CONVERTER CHARACTERISTICS
+INL
−INL
DNL
TUE
UNIPOLAR DYNAMIC CONVERTER CHARACTERISTICS
S/(N+D)
DIFFERENTIAL DYNAMIC CONVERTER CHARACTERISTICS
S/(N+D)
REFERENCE INPUT, ANALOG INPUTS AND MULTIPLEXER CHARACTERISTICS
C
C
Symbol
REF
A/D
Converter Electrical Characteristics
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
A
= T
Positive Integral Linearity Error
Negative Integral Linearity Error
Differential Non-Linearity
Positive Full-Scale Error
Negative Full-Scale Error
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
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
8-bit + sign mode (Note 12)
8-bit + sign mode (Note 12)
8-bit + sign mode
8-bit + sign mode (Note 12)
8-bit + sign mode (Note 12)
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
A
IN
IN
IN
IN
IN
IN
A
+ = V
IN
+
REF
IN
IN
IN
IN
= 1 kHz, V
= 20 kHz, V
= 40 kHz, V
= 1 kHz, V
= 20 kHz, V
= 40 kHz, V
= T
(+) = V
= +5V
= 5 V
=
= +5.0V or
= 0V
= +4.096V
±
J
D
5V, where S/(N+D) drops 3 dB
+ = +5.0 V
= 25˚C. (Notes 7, 8, 9)
PP
S
±
IN
CK
10%
, where S/(N+D) drops 3 dB
= 25Ω, source impedance for V
(−) = + 2.048V
IN
IN
) acquisition time unless otherwise specified. Boldface limits apply
IN
IN
IN
IN
Conditions
= 5 V
=
(Continued)
= 5 V
= 5 V
=
=
6
±
DC
±
±
5V, V
5V, V
5V, V
, V
PP
PP
PP
, V
REF
, V
, V
REF
REF
REF
REF
+ = +4.096 V
REF
REF
+
+
+
+
= 5.0V
+
+ = 5.0V
= 5.0V
= 5.0V
= 5.0V
= 5.0V
DC
REF
, V
(Note 10)
Typical
REF
+ and V
±
±
±
±
±
±
69.4
68.3
65.7
77.0
73.9
67.0
±
0.05
31
40
85
75
0.5
0.5
0.5
0.5
0.5
0.1
− = 0 V
CK
REF
= f
GND − 0.05
DC
V
− ≤ 25Ω, fully-differential
(Note 11)
A
SK
Limits
, 12-bit + sign conver-
+ + 0.05
4095
4093
±
±
±
±
±
±
±
±
±
±
+10
−10
±
= 5 MHz for the
1/2
1/2
3/4
1/2
1/2
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 (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