ADC081C027CIMK Datasheet, PDF (4/41 Pages) National Semiconductor (TI) – ADC081C021/ADC081C027 I2C-Compatible, 8-Bit Analog-to-Digital Converter (ADC) with Alert Function

ADC081C021, ADC081C027
SNAS447C – FEBRUARY 2008 – REVISED MARCH 2013
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Symbol
ALERT
Type
Digital Output
SCL
Digital Input
SDA
Digital
Input/Output
ADDR0
PIN DESCRIPTIONS (continued)
Equivalent Circuit
PIN
Snap ^D1
Back
GND
V+
Description
Alert output. Can be configured as active high or active low.
This is an open drain data line that must be pulled to the
supply (V_A) with an external pull-up resistor.
Serial Clock Input. SCL is used together with SDA to control
the transfer of data in and out of the device. This is an open
drain data line that must be pulled to the supply (V_A) with an
external pull-up resistor. This pin's extended ESD tolerance(
8kV HBM) allows extension of the I²C bus across multiple
boards without extra ESD protection.
Serial Data bi-directional connection. Data is clocked into or
out of the internal 16-bit register with SCL. This is an open
drain data line that must be pulled to the supply (V_A) with an
external pull-up resistor. This pin's extended ESD tolerance(
8kV HBM) allows extension of the I²C bus across multiple
boards without extra ESD protection.
Tri-level Address Selection Input. Sets Bits A0 & A1 of the
7-bit slave address. (see Table 2)
ADDR1
Digital Input,
three levels
PIN
D1
2.1k
41.5k
Snap
Back
41.5k
Tri-level Address Selection Input. Sets Bits A2 & A3 of the
7-bit slave address. (see Table 2)
GND
Package Pinouts
V_A
ADC081C021 (SOT-6)
1
ADC081C027 (SOT-6)
1
ADC081C021 (VSSOP-8)
5
GND
2
2
7
V_IN
ALERT
SCL
3
4
5
3
N/A
5
4
2
1
SDA
6
6
8
ADR0
N/A
4
3
ADR1
N/A
N/A
6
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
4
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