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TMP468 数据表(PDF) 10 Page - Texas Instruments

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部件名 TMP468
功能描述  9-Channel (8-Remote and 1-Local), High-Accuracy Temperature Sensor
Download  40 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

TMP468 数据表(HTML) 10 Page - Texas Instruments

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ADC
Oscillator
Voltage
Reference
MUX
Register
Bank
Serial
Interface
Control
Logic
MUX
16 × I
6 × I
I
V+
Local
Thermal
BJT
ADD
SCL
SDA
D1+
D2+
D3+
D5+
D4+
D6+
D7+
D8+
GND
V+
THERM
THERM2
D-
Copyright © 2016, Texas Instruments Incorporated
10
TMP468
SBOS762 – NOVEMBER 2016
www.ti.com
Product Folder Links: TMP468
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
8 Detailed Description
8.1 Overview
The TMP468 is a digital temperature sensor that combines local temperature measurement channel and eight
remote-junction temperature measurement channels in a single DSBGA-16 package. The device has a two-wire-
interface that is compatible with I2C or SMBus interfaces and includes four pin-programmable bus address
options. The TMP468 is specified over a local device temperature range of –40°C to 125°C. The TMP468 also
contains multiple registers for programming and holding configuration settings, temperature limits, and
temperature measurement results. The TMP468 pin out includes THERM and THERM2 outputs that signal
overtemperature events based on the settings of temperature limit registers.
8.2 Functional Block Diagram
8.3 Feature Description
8.3.1 Temperature Measurement Data
The local and remote temperature sensors have a resolution of 13 bits (0.0625°C). Temperature data that result
from conversions within the default measurement range are represented in binary form, as shown in the
Standard Binary column of Table 1. Negative numbers are represented in two's complement format. The
resolution of the temperature registers extends to +255.9375°C and down to –256°C but the actual device is
limited to ranges as specified in the Electrical Characteristics to meet the accuracy specifications. The TMP468 is
specified for ambient temperatures ranging from –40°C to 125°C; parameters in the Absolute Maximum Ratings
table must be observed to prevent damage to the device.


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