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ADT7411ARQZ10

SPI®/I2C® Compatible, 10-Bit Digital Temperature Sensor and 8-Channel ADC

Analog Devices 

ADT7411

PIN CONFIGURATION AND FUNCTIONAL DESCRIPTION

AIN6 1

16 AIN7

AIN5 2

15 AIN8

NC 3

14 AIN4

ADT7411

CS 4

13 SCL/SCLK

TOP VIEW

GND 5 (Not to Scale) 12 SDA/DIN

VDD 6

D+/AIN1 7

11 DOUT/ADD

10 INT/INT

D–/AIN2 8

9 AIN3

NC = NO CONNECT

Figure 6. Pin Configuration

Table 4. Pin Function Description

Pin

No. Mnemonic Description

1 AIN6

2 AIN5

3 NC

Analog Input. Single-ended analog input channel. Input range is 0 V to 2.25 V or 0 V to VDD.

Analog Input. Single-ended analog input channel. Input range is 0 V to 2.25 V or 0 V to VDD.

No Connection to This Pin.

4 CS

SPI—Active Low Control Input. This is the frame synchronization signal for the input data. When CS goes low, it

enables the input register and data is transferred in on the rising edges and out on the falling edges of the

subsequent serial clocks. It is recommended that this pin be tied high to VDD when operating the serial interface in I2C

mode.

5 GND

Ground Reference Point for All Circuitry on the Part. Analog and digital ground.

6

VDD

7 D+/AIN

Positive Supply Voltage, 2.7 V to 5.5 V. The supply should be decoupled to ground.

D+. Positive connection to external temperature sensor. AIN1. Analog Input. Single-ended analog input channel.

Input range is 0 V to 2.25 V or 0 V to 5 V.

8 D−/AIN2 D−. Negative connection to external temperature sensor. AIN2. Analog Input. Single-ended analog input channel.

Input range is 0 V to 2.25 V or 0 V to 5 V.

9 AIN3

Analog Input. Single-ended analog input channel. Input range is 0 V to 2.25 V or 0 V to VDD.

10 INT/INT

Over Limit Interrupt. The output polarity of this pin can be set to give an active low or active high interrupt when

temperature, VDD, or AIN limits are exceeded. Default is active low. Open-drain output, needs a pull-up resistor.

11 DOUT/ADD SPI. Serial Data Output. Logic output. Data is clocked out of any register at this pin. Data is clocked out on the falling

edge of SCLK. Open-drain output, needs a pull-up resistor.

ADD. I2C serial bus address selection pin. Logic input. A low on this pin gives the Address 1001 000. Leaving it floating

gives the address 1001 010, and setting it high gives the Address 1001 011. The I2C address set up by the ADD pin is

not latched by the device until after this address has been sent twice. On the eighth SCL cycle of the second valid

communication, the serial bus address is latched in. Any subsequent changes on this pin will have no effect on the I2C

serial bus address.

12 SDA/DIN SDA. I2C serial data input. I2C serial data to be loaded into the part’s registers is provided on this input. An open-drain

configuration, it needs a pull-up resistor.

DIN. SPI serial data input. Serial data to be loaded into the part’s registers is provided on this input. Data is clocked

into a register on the rising edge of SCLK. Open-drain configuration, needs a pull-up resistor.

13 SCL/SCLK Serial Clock Input. This is the clock input for the serial port. The serial clock is used to clock data out of any register of

the ADT7411 and also to clock data into any register that can be written to. An open-drain configuration, it needs a

pull-up resistor.

14 AIN4

15 AIN8

16 AIN7

Analog Input. Single-ended analog input channel. Input range is 0 V to 2.25 V or 0 V to VDD.

Analog Input. Single-ended analog input channel. Input range is 0 V to 2.25 V or 0 V to VDD.

Analog Input. Single-ended analog input channel. Input range is 0 V to 2.25 V or 0 V to VDD.

Rev. A | Page 8 of 36

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