SX8723 Datasheet, PDF (1/53 Pages) Semtech Corporation – ZoomingADC™ for Pressure and Temperature Sensing

SX8723
ZoomingADC™ for Pressure and Temperature Sensing
ADVANCED COMMUNICATIONS & SENSING
Description
The SX8723 is a data acquisition system based on
Semtech’s low power ZoomingADC™ technology. It
directly connects most types of miniature sensors
with a general purpose microcontroller.
With 2 differential inputs, it can adapt to multiple
sensor systems. Its digital outputs are used to bias
or reset the sensing elements.
Applications
• Industrial pressure sensing
• Industrial temperature sensing
• Barometer
• Compass
Functional Block Diagram
Features
• Up to 16-bit differential data acquisition
• Programmable gain: (1/12 to 1000)
• Sensor offset compensation up to 15 times
full scale of input signal
• 2 differential or 4 single-ended signal inputs
• Programmable Resolution versus Speed
versus Supply current
• 2 digital outputs to bias Sensors
• Internal or external voltage reference
• Internal time base
• Low-power (250 uA for 16b @ 500 S/s)
• I2C interface
Ordering Information
Device
Package
SX8723E083TRT
MLPD-W-12 4x4
1) Available in tape and reel only
2) Lead free, WEEE and RoHS compliant.
SX8723
+
-
+
+
V_{REF -}
-
AC0
AC1
AC2
AC3
AC4
AC5
PGA
ZoomingADC^TM
ADC
CONTROL LOGIC
D0
D1
GPIO
CHARGE
PUMP
4MHz
OSC
I²C
V_BATT
READY
SCL
SDA
V_PUMP
VSS
MCU
V1.5 © 2007 Semtech Corp.
1
www.semtech.com