adc121c021eb National Semiconductor Corporation, adc121c021eb Datasheet - Page 5

• Manufacturer Part Number: adc121c021eb
• Description: Adc121c021/adc121c027 I2c-compatible, 12-bit Analog-to-digital Converter With Alert
• Manufacturer: National Semiconductor Corporation

DYNAMIC CONVERTER CHARACTERISTICS
ANALOG INPUT CHARACTERISTICS
SERIAL INTERFACE INPUT CHARACTERISTICS (SCL, SDA)
ADDRESS SELECTION INPUT CHARACTERISTICS (ADDR)
LOGIC OUTPUT CHARACTERISTICS, OPEN-DRAIN (SDA, ALERT)
Symbol
SINAD
FPBW
ENOB
SFDR
V
SNR
THD
C
IMD
I
V
V
V
C
V
V
HYST
V
I
DCL
I
I
OZ
INA
IN
IN
OL
IN
IH
IN
IH
IL
IL
Effective Number of Bits
Signal-to-Noise Ratio
Total Harmonic Distortion
Signal-to-Noise Plus Distortion Ratio
Spurious-Free Dynamic Range
Intermodulation Distortion, Second
Order Terms (IMD
Intermodulation Distortion, Third
Order Terms (IMD
Full Power Bandwidth (−3dB)
Input Range
DC Leakage Current
Input Capacitance
Input High Voltage
Input Low Voltage
Input Current
Input Pin Capacitance
Input Hysteresis
Input High Voltage
Input Low Voltage
Input Current
Output Low Voltage
High Impedance Output
Leakage Current
Output Coding
Parameter
(Note
(Note
(Note
2
3
)
)
10)
10)
(Note
10)
10)
V
V
V
V
V
V
V
V
V
V
V
f
V
f
V
f
V
f
V
V
Track Mode
Hold Mode
I
I
a
a
a
a
SINK
SINK
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
= 1.035 kHz, f
= 1.035 kHz, f
= 1.035 kHz, f
= 1.035 kHz, f
= +2.7V to +3.6V
= +3.6V to +5.5V
= +2.7V to +3.6V
= +3.6V to +5.5V
= +2.7V to +3.6V
= +3.6V to +5.5V
= +2.7V to +3.6V
= +3.6V to +5.5V
= +2.7V to +3.6V
= +3.6V to +5.5V
= +3.0V,
= +5.0V,
= +3.0V,
= +5.0V,
= +3.0V
= +5.0V
= 3 mA
= 6 mA
Conditions
5
b
b
b
b
= 1.135 kHz
= 1.135 kHz
= 1.135 kHz
= 1.135 kHz
(Note
Typical
0 to V
11.7
11.5
72.5
72.6
−92
−87
−89
−91
−88
−88
71
71
90
87
11
30
8
3
3
9)
A
Straight (Natural) Binary
V
(Note
0.7 x V
0.3 x V
0.1 x V
Limits
A
11.3
70.4
−78
0.5
0.4
0.6
70
76
±1
±1
- 0.5V
±1
±1
9)
A
A
A
Units (Limits)
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Bits (min)
Bits (min)
dB (max)
dB (max)
µA (max)
µA (max)
µA (max)
µA (max)
dB (min)
dB (min)
dB (min)
dB (min)
dB (min)
dB (min)
V (max)
V (max)
V (max)
V (max)
V (min)
V (min)
V (min)
MHz
MHz
dB
dB
dB
dB
pF
pF
pF
V