Introduction; Overview; Specifications; Block Diagram - Honeywell IPT User Manual

1 Introduction

1.1 Overview

The Honeywell IPT provides high accuracy pressure data in an industry standard SPI digital format. The core
of the IPT is a proven Honeywell silicon piezo-resistive pressure sensor with both pressure and temperature
sensitive elements. The IPT is both small and lightweight and can be easily integrated into a wide variety of
applications that require high performance in a small package.
Applying coefficients stored in the on-board EEPROM to normalized IPT pressure and temperature output
yields accurate pressure readings over a -40 to 85°C compensated temperature range.

2 Specifications

2.1 Block Diagram

Sensor
3.3V Analog and
Digital Supply
LDO Regulator
24-bit ADC, SPI
-- Pressure --
18+ ENOB @ 250 sps
Op-Amp
-- Temperature --
16-bit ADC, SPI
Op-Amp
~16 ENOB @ 20 sps
256 X 8 EEPROM
4-12V
3.3V Output
SPI Serial
+ P.S.
DIN
SCLK
DOUT/RDY
CS_ADC_P
CS_ADC_T
CS_EE
GND
4