ADC121C021CIMKX/NOPB National Semiconductor, ADC121C021CIMKX/NOPB Datasheet - Page 19

• Manufacturer Part Number: ADC121C021CIMKX/NOPB
• Description: IC ADC 12BIT I2C ALERT TSOT-23-6
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of ADC121C021CIMKX/NOPB

• Number Of Bits: 12
• Sampling Rate (per Second): 188.9k
• Data Interface: I²C, Serial
• Number Of Converters: 1
• Power Dissipation (max): 780µW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6 Thin, TSOT-23-6
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ADC121C021CIMKX

1.6.6 V
This register holds the upper limit threshold used to determine the alert condition. If the conversion moves higher than this limit, a
V
Pointer Address 04h (Read/Write)
Default Value: 0FFFh
1.6.7 V
This register holds the hysteresis value used to determine the alert condition. After a V
result must move within the V
in the configuration register, alert conditions will not self-clear.
Pointer Address 05h (Read/Write)
Default Value: 0000h
1.6.8 V
This register holds the Lowest Conversion result when in the automatic conversion mode. Each conversion result is compared
against the contents of this register. If the value is lower, it becomes the lowest conversion and replaces the current value. If the
value is higher, the register contents remain unchanged. The lowest conversion value can be cleared at any time by writing 0FFFh
to this register. The value of this register will update automatically when the automatic conversion mode is enabled, but is NOT
updated in the normal mode.
Pointer Address 06h (Read/Write)
Default Value: 0FFFh
Bits
15:12
11:0
Bits
15:12
11:0
Bits
15:12
11:0
HIGH
D15
D15
D15
alert is generated.
D7
D7
D7
HIGH
HYST
MIN
Name
Reserved
V
Name
Reserved
Hysteresis
Name
Reserved
Lowest Conversion
-- Lowest Conversion Register
HIGH
-- Alert Limit Register - Over Range
-- Alert Hysteresis Register
Limit
D14
D14
D14
D6
D6
D6
Reserved
Reserved
Reserved
HIGH
Description
Always reads zeros. Zeros must be written to these bits.
Upper limit threshold. D11 is MSB.
Description
Always reads zeros. Zeros must be written to these bits.
Hysteresis value. D11 is MSB.
Description
Always reads zeros. Zeros must be written to these bits.
Lowest conversion result data. D11 is MSB.
or V
D13
D13
D13
LOW
D5
D5
D5
limit by more than this value to clear the alert condition. Note: If the Alert Hold bit is set
Lowest Conversion [7:0]
D12
D12
D12
D4
D4
D4
V
Hysteresis [7:0]
HIGH
Limit [7:0]
19
D11
D11
D11
D3
D3
D3
Lowest Conversion [11:8]
D10
D10
D10
D2
D2
D2
HIGH
V
Hysteresis [11:8]
HIGH
or V
Limit [11:8]
LOW
alert occurs, the conversion
D9
D1
D9
D1
D9
D1
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D8
D0
D8
D0
D8
D0