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7411
(Rev.:2017)

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

Analog Devices 

Data Sheet

SPI-/I2C-Compatible, 10-Bit Digital

Temperature Sensor and 8-Channel ADC

ADT7411

FEATURES

10-bit temperature-to-digital converter

10-bit 8-channel ADC

DC input bandwidth

Input range: 0 V to 2.25 V and 0 V to VDD

Temperature range: −40°C to +120°C

Temperature sensor accuracy of ±0.5°C

Supply range: 2.7 V to 5.5 V

Power-down current : <10 μA

Internal 2.25 VREF option

Double-buffered input logic

I2C, SPI, QSPI™, MICROWIRE™, and DSP compatible

4-wire serial interface

SMBus packet error checking (PEC) compatible

16-lead QSOP

APPLICATIONS

Portable battery-powered instruments

PCs

Smart battery chargers

Telecommunications systems electronic test equipment

Domestic appliances

Process controls

GENERAL DESCRIPTION

The ADT74111 combines a 10-bit temperature-to-digital

converter and a 10-bit 8-channel ADC in a 16-lead QSOP. This

includes a band gap temperature sensor and a 10-bit ADC to

monitor and digitize the temperature reading to a resolution of

0.25°C. The ADT7411 operates from a single 2.7 V to 5.5 V

supply. The input voltage on the ADC channels has a range of

0 V to 2.25 V and the input bandwidth is dc. The reference for

the ADC channels is derived internally. The ADT7411 provides

two serial interface options: a 4-wire serial interface compatible

with SPI, QSPI, MICROWIRE, and DSP interface standards,

and a 2-wire SMBus/I2C interface. It features a standby mode

that is controlled via the serial interface.

PIN CONFIGURATION

AIN6 1

AIN5 2

NC 3

CS 4

GND 5

VDD 6

D+/AIN1 7

D–/AIN2 8

16 AIN7

ADT7411

TOP VIEW

(Not to Scale)

15 AIN8

14 AIN4

13 SCL/SCLK

12 SDA/DIN

11 DOUT/ADD

10 INT/INT

9 AIN3

NC = NO CONNECT

Figure 1.

The ADT7411’s wide supply voltage range, low supply current,

and SPI-/I2C-compatible interface make it ideal for a variety of

applications, including PCs, office equipment, and domestic

appliances.

1 Protected by U.S. Patent Numbers: 6,169,442; 5,867,012; 5,764174. Other patents pending.

Rev. C

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