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PMC8000B

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產品描述

15-Channel ADC Featuring I2C Interface

產品特點

Operation Voltage : 2.8 V to 5.5 V
Low operating current: 100 μA (typical)
15-Ch Analog Voltage Input: VI1, VI2, VI3, VI4, VI5, VI6, VI7, VI8, VI9, VI10, VI11, VI12, VI13, VI14, VI15.
Pin 4 selects the ADC accuracy and full-scale input range configuration.
High-accuracy nonlinearity :±1.5LSB when Pin 4 is tied to GND ; ±3LSB when Pin 4 is connected to GND through a resistor ≥10 kΩ
ADC full-scale input range : 1.0 V to 3.56 V when Pin 4 is tied to GND ; 0 V to 2.56 V when Pin 4 is connected to GND through a resistor ≥10 kΩ
High Accuracy A/D Resolution: 10mV/LSB
Built-in Alert Flag Functions
Built-in I2C Address Programming Functions
Temperature Range: -40°C to 125°C

產品介紹

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產品介紹


The PMC8000B is an 8-bit precision analog-to-digital converter (ADC) designed for temperature sensing applications using external NTC thermistors with high accuracy, low power operation, and easy system integration, and its communication interface is I2C. The PMC8000B provides up to 15 voltage-sensing inputs for temperature monitoring applications. It reads the voltage across an NTC resistor divider referenced to ground, digitizes the sensed values, and transfers the data to a microprocessor over the I²C bus to support advanced power-management functions. The PMC8000B operates from a single supply voltage of 2.8V to 5.5V and is available in a compact WQFN 3×3-20 pin package.

產品規格

Recommended Operating Conditions

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Parameter
Specification
Supply Voltage
2.8V~5.5V
SCL, SDA, ADDR/ALT
0~VCC
Operating junction temperature
-40°C~125°C

Key Electrical Characteristics

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Parameter
Condition
Specification
Supply Voltage
2.8V~5.5V
VCC Supply Current
80uA (Typ.)
A/D Resolution
10mV/LSB (Typ.)
Address Setting
8 sets
Alert Pull Low Pulse Time
50uS (Typ.)
Alert Pull Low cycle Time
2S (Typ.)
I2C Clock Rate Range
400KHz (Typ.)
Monitor time
is selected when Pin 4 is tied to GND
0.6mS (Typ.)
Monitor time
is selected when Pin 4 is connected to GND through a 10 kΩ resistor
1.2mS (Typ.)

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PMC8000B_Datasheet

PDF

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