ZSSC3224 Conditioner Datasheet

ZSSC3224 Datasheet, PDF, Equivalent


Part Number

ZSSC3224

Description

High End 24-Bit Sensor Signal Conditioner

Manufacture

Renesas

Total Page 30 Pages
Datasheet
Download ZSSC3224 Datasheet


ZSSC3224
High End 24-Bit Sensor Signal
Conditioner IC
ZSSC3224
Datasheet
Brief Description
The ZSSC3224 is a sensor signal conditioner (SSC) IC for high-
accuracy amplification and analog-to-digital conversion of a differ-
ential or pseudo-differential input signal. Designed for high resolu-
tion sensor module applications, the ZSSC3224 can perform offset,
span, and 1st and 2nd order temperature compensation of the
measured signal. Developed for correction of resistive bridge or
absolute voltage sensors, it can also provide a corrected tempera-
ture output measured with an internal sensor.
The measured and corrected sensor values are provided at the
digital output pins, which can be configured as I2C (3.4MHz) or
SPI (20MHz). Digital compensation of signal offset, sensitivity,
temperature, and non-linearity is accomplished via a 26-bit internal
digital signal processor (DSP) running a correction algorithm.
Calibration coefficients are stored on-chip in a highly reliable, non-
volatile, multiple-time programmable (MTP) memory. Programming
the ZSSC3224 is simple via the serial interface. The interface is
used for the PC-controlled calibration procedure, which programs
the set of calibration coefficients in memory. The ZSSC3224
provides accelerated signal processing, increased resolution, and
improved noise immunity in order to support high-speed control,
safety, and real-time sensing applications with the highest
requirements for energy efficiency.
Applications
Barometric altitude measurement for portable navigation or
emergency call systems; altitude measurement for car
navigation
Weather forecast
Fan control
Industrial, pneumatic, and liquid pressure
High-resolution temperature measurements
Object-temperature radiation (via thermopile)
ZSSC3224 Application Example
VSS
VDD
Stacked-Die Sensor Module
VDD
VSS
RES
EOC
MISO
VDD
VSS
RES
VDDB
INN
EOC
MISO
ZSSC3224
VDDB
INP(+)
sensor element
INN(-)
VSSB
SS
INP
VSSB
MOSI
SDA
SCLK
SCL
SS
MOSI
SDA
SCLK
SCL
Microcontroller
Features
Flexible, programmable analog front-end design; up to 24-bit
analog-to-digital converter (ADC)
Fully programmable gain amplifier for optimizing sensor
signals: gain range 6.6 to 216 (linear)
Internal auto-compensated 18-bit temperature sensor
Digital compensation of individual sensor offset; 1st and 2nd
order digital compensation of sensor gain as well as 1st and
2nd order temperature gain and offset drift
Programmable interrupt operation
High-speed sensing: e.g., 18-bit conditioned sensor
signal measurement rate >200s-1
Typical sensor elements can achieve an accuracy of better
than ±0.10% full scale output (FSO) at -40 to 85°C
Integrated 26-bit calibration math digital signal
processor (DSP)
Fully corrected signal at digital output
Layout customized for die-die bonding with sensor for high-
density chip-on-board assembly
One-pass calibration minimizes calibration costs
No external trimming, filter, or buffering components required
Highly integrated CMOS design
Integrated reprogrammable non-volatile memory
Excellent for low-voltage and low-power battery applications
Optimized for operation in calibrated resistive
(e.g., pressure) sensor or calibrated absolute voltage (e.g.,
thermopile) sensor modules
Supply voltage range: 1.68V to 3.6V
Operating mode current: ~1.0mA (typical)
Sleep Mode current: 20nA (typical)
Temperature resolution: <0.7mK/LSB
Excellent energy-efficiency:
with 18-bit resolution: <100pJ/step
with 24-bit resolution: <150nJ/step
Small die size
Operation temperature: 40°C to +85°C
Delivery options: 4.0mm x 4.0mm 24-PQFN and die for wafer
bonding
© 2018 Integrated Device Technology, Inc
1
November 12, 2018

ZSSC3224
ZSSC3224 Block Diagram
VDDB
VTP
VTN
Temperature
Reference
Sensor
Sensor
Bridge
INP
INN
VSSB
Power-ON
Rese t
ZSSC3224 Datasheet
Vreg int
AGND / CM
Generator
Bias Current
Generator
Voltage Regulator
Power Ctr.
ZSSC3224
Pre-amplifier
A
D
24 Bit
DSP Core
(Calculations,
Communication)
Clock
G enerat or
Oscillator
System
Control
Unit
SPI
MTP I2C
VDD
VSS
EOC
SCLK/SCL
SS
MOSI/SDA
MISO
RES
© 2018 Integrated Device Technology, Inc
2
November 12, 2018


Features High End 24-Bit Sensor Signal Conditione r IC ZSSC3224 Datasheet Brief Descrip tion The ZSSC3224 is a sensor signal co nditioner (SSC) IC for highaccuracy amp lification and analog-to-digital conver sion of a differential or pseudo-differ ential input signal. Designed for high resolution sensor module applications, the ZSSC3224 can perform offset, span, and 1st and 2nd order temperature compe nsation of the measured signal. Develop ed for correction of resistive bridge o r absolute voltage sensors, it can also provide a corrected temperature output measured with an internal sensor. The measured and corrected sensor values ar e provided at the digital output pins, which can be configured as I2C (≤ 3.4 MHz) or SPI (≤ 20MHz). Digital compen sation of signal offset, sensitivity, t emperature, and non-linearity is accomp lished via a 26-bit internal digital si gnal processor (DSP) running a correcti on algorithm. Calibration coefficients are stored on-chip in a highly reliable, nonvolatile, multiple-time.
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