TM
ZSSC3015
RBicdLite-Auto Sensor Signal
Datasheet
Conditioner with Diagnostics
Brief Description
Benefits
The ZSSC3015 sensor signal conditioner IC is
adjustable to nearly all piezo-resistive bridge
sensors. Measured and corrected bridge values are
provided at the Sig™ pin, which can be configured
as an analog voltage output or as a one-wire serial
digital output.
•
•
No external trimming components required
PC-controlled configuration and calibration via
ZACwire™ one-wire interface – simple, low cost
•
•
High accuracy (as high as ±0.1% FSO @ -25 to
85°C; ±0.25% FSO @ -50 to 150°C)
Single-pass calibration – quick and precise
The ZACwire™ digital one-wire interface (OWI) can
be used for a simple PC-controlled calibration
procedure to program a set of calibration coefficients
into an on-chip EEPROM. The calibrated ZSSC3015
and a specific sensor are mated digitally: fast,
precise, and without the cost overhead associated
with trimming by external devices or laser. Integrated
diagnostics functions make the ZSSC3015 parti-
cularly well suited for automotive applications.
Available Support
•
•
•
•
Evaluation Kit available
Mass Calibration System available
Support for industrial mass calibration available
Quick circuit customization possible for large
production volumes
Features
Physical Characteristics
•
Digital compensation of sensor offset, sensitivity,
temperature drift, and nonlinearity
•
•
Wide operation temperature: –50°C to +150°C
Supply voltage 2.7 to 5.5V; with external JFET,
5.5 to 30V
•
Programmable analog gain and digital gain;
accommodates bridges with spans < 1mV/V
and high offset
•
Small SOP8 package
•
•
Many diagnostic features on chip (e.g., EEPROM
signature, bridge connection checks, bridge short
detection, power loss detection)
ZSSC3015 Application Circuit
Vsupply
Independently programmable high and low
clipping levels
+2.7 to +5.5 V
VDD
•
•
24-bit customer ID field for module traceability
OUT/OWI
Sig™
Internal temperature compensation reference (no
external components)
ZSSC3015
VBP
•
•
Option for external temperature compensation
with addition of single diode
Vgate
VBN
VSS
µ
0.1 F
Output options: rail-to-rail ratiometric analog
voltage (12-bit resolution), absolute analog
voltage, ZACwire™ digital one-wire interface
Ground
•
•
Fast power-up to data out response; output
available 5ms after power-up
Current consumption depends on programmed
sample rate and mode: 1mA down to 300µA (typ.)
•
•
•
Fast response time: 1.4ms typical
High voltage protection: ≤ 30V with external JFET
AEC-Q100 qualified
© 2016 Integrated Device Technology, Inc.
1
January 20, 2016