ADC121C021CIMKX NSC [National Semiconductor], ADC121C021CIMKX Datasheet - Page 7

• Manufacturer Part Number: ADC121C021CIMKX
• Description: I2C-Compatible, 12-Bit Analog-to-Digital Converter (ADC) with Alert Function
• Manufacturer: NSC [National Semiconductor]

CONVERSION RATE
f
DIGITAL TIMING SPECS (SCL, SDA)
f
t
t
t
t
t
t
t
t
CONV
SCL
LOW
HIGH
SU;DAT
HD;DAT
SU;STA
HD;STA
BUF
SU;STO
Symbol
A.C. and Timing Characteristics
The following specifications apply for V
T
A
= 25°C, unless otherwise specified.
Conversion Time
Conversion Rate
Serial Clock Frequency
SCL Low Time
SCL High Time
Data Setup Time
Data Hold Time
Setup time for a start or a repeated
start condition
Hold time for a start or a repeated start
condition
Bus free time between a stop and start
condition
Setup time for a stop condition
Parameter
A
= +2.7V to +5.5V. Boldface limits apply for T
f
f
f
f
Standard Mode
Fast Mode
High Speed Mode, C
High Speed Mode, C
Standard Mode
Fast Mode
High Speed Mode, C
High Speed Mode, C
Standard Mode
Fast Mode
High Speed Mode, C
High Speed Mode, C
Standard Mode
Fast Mode
High Speed Mode
Standard Mode (Note 14)
Fast Mode (Note 14)
High Speed Mode, C
High Speed Mode, C
Standard Mode
Fast Mode
High Speed Mode
Standard Mode
Fast Mode
High Speed Mode
Standard Mode
Fast Mode
Standard Mode
Fast Mode
High Speed Mode
SCL
SCL
SCL
SCL
= 100kHz
= 400kHz
= 1.7MHz
= 3.4MHz
Conditions (Note 12)
7
b
b
b
b
b
b
b
b
= 100pF
= 400pF
= 100pF
= 400pF
= 100pF
= 400pF
= 100pF
= 400pF
MIN
≤
(Note 9)
Typical
188.9
5.56
22.2
94.4
T
A
1
≤
T
MAX
and all other limits are at
(Notes 9,
Limits
3.45
100
400
160
320
120
250
100
150
160
160
160
12)
3.4
1.7
4.7
1.3
4.0
0.6
0.9
4.7
0.6
4.0
0.6
4.7
1.3
4.0
0.6
60
10
70
0
0
0
0
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MHz (max)
MHz (max)
kHz (max)
kHz (max)
us (max)
us (max)
ns (max)
ns (max)
(Limits)
us (min)
us (min)
ns (min)
ns (min)
us (min)
us (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
us (min)
us (min)
ns (min)
ns (min)
us (min)
us (min)
ns (min)
us (min)
us (min)
ns (min)
us (min)
us (min)
us (min)
us (min)
ns (min)
Units
kSPS
kSPS
kSPS
kSPS
µs