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TPIC83000IPWRQ1 Datasheet(PDF) 3 Page - Texas Instruments

Part # TPIC83000IPWRQ1
Description  PRESSURE SENSOR SIGNAL CONDITIONING INTERFACE
PDF  44 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPIC83000IPWRQ1 Datasheet(HTML) 3 Page - Texas Instruments

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Coarse
Offset
SIP
SIN
SIP
SIN
Open/Short
Sensor faults
Shorts
Open
+
-
+
-
Bandgap
PTAT
generator
Mux
Current mirror
2.458MHz
Oscillator
Programmable
offset
Overweight
bit
Sigma Delta
ADC
Sigma Delta
ADC
EEPROM
Ampout+ [2:0]
Ampout- [2:0]
TrimBG [4:0]
TrimOsc [6:0]
Clk2.458MHz
Vbg
Vptat
Diagnostics
Filter
ADC clock
generator
Filter
ADC clock
generator
Charge
pump
Registers
EEPROM
control logic
UART I/F
Power On Reset
Signal
Conditioning
Trim
Control
Master
control logic
Test
Mode
PUC
Clk2.458MHz
Dweight
[13:0]
Dtemp
[11:0]
Control bus
to ALL
blocks
Vcc
VccA
Vdd
TST2
TST0
TST1
SIP
SIN
GND GNDA
DGND
REF1
PROGV
DO
DI
GND
PUC
Digital block
Open
Cpuv
Short
Cpuv
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vdd
Vcc
Vdd
Vcc
Vcc
TPIC83000-Q1
www.ti.com
SLDS171 – NOVEMBER 2009
FUNCTIONAL DESCRIPTION
The TPIC83000 is designed for detection of low-pressure variations in many automotive applications. This device
provides analog interface signal conditioning between a piezo-resistive or strain gauge pressure sensor and a
microcontroller. The input amplifiers process the voltage from the sensor and amplify this voltage before feeding
it to the 14-bit sigma-delta ADC for signal conditioning. Once the signal is converted into a digital format, this
converted value of the analog signal is processed and transmitted to the microcontroller via the UART interface.
There is also a 12-bit ADC to sense ambient temperature, which is used to compensate for non-ideality of the
sensor and associated circuitry due to temperature.
Figure 1. Detailed Functional Block Diagram
Copyright © 2009, Texas Instruments Incorporated
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