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ZMD31014KIT 参数 Datasheet PDF下载

ZMD31014KIT图片预览
型号: ZMD31014KIT
PDF下载: 下载PDF文件 查看货源
内容描述: RBIC低成本传感器信号调理器,带有I2C和SPI [RBic Low-Cost Sensor Signal Conditioner with I2C & SPI]
分类和应用: 传感器
文件页数/大小: 2 页 / 1244 K
品牌: ZMD [ Zentrum Mikroelektronik Dresden AG ]
 浏览型号ZMD31014KIT的Datasheet PDF文件第2页  
ZMD31014
RBic
iLite
Low-Cost Sensor Signal Conditioner with I
2
C & SPI
Brief Description
The RBic
iLiteTM
is a CMOS integrated circuit for highly
accurate amplification and analog-to-digital conver-
sion of differential and half-bridge input signals. The
RBic
iLiteTM
can compensate the measured signal for
offset, 1
st
and 2
nd
order span, and 1
st
and 2
nd
order
temperature (Tco and Tcg). It is well-suited for sen-
sor-specific correction of bridge sensors. Digital
compensation of signal offset, sensitivity, tempera-
ture drift, and non-linearity is accomplished via an
internal digital signal processor running a correction
algorithm with calibration coefficients stored in a
non-volatile EEPROM.
The RBic
iLiteTM
is adjustable to nearly all piezo-resis-
tive bridge sensors. Measured and corrected bridge
values are provided at digital output pins, which can
be configured as I
2
C or SPI. The digital I
2
C interface
can be used for a simple PC-controlled calibration
procedure to program calibration coefficients into an
on-chip EEPROM. The calibrated RBic
iLiteTM
and a
specific sensor are mated digitally: fast, precise, and
without the cost overhead associated with trimming
by external devices or laser trimming.
Integrated diagnostics functions make the RBic
iLiteTM
particularly well-suited for safety-critical applications.
Benefits
Simple PC-controlled configuration and single-
pass digital calibration via I2C interface – quick,
precise, and low cost; SPI option for measure-
ment modeneed for external trimming
Eliminates
components
On-chip diagnostic features add safety to the
application (e.g., EEPROM signature, bridge
connection checks, bridge short detection).
Low-power Sleep Mode lengthens battery life
Enables multiple sensor networks
Available Support
Evaluation Kit
Application Notes
Mass Calibration Solution
Physical Characteristics
Features
Wide supply voltage capability: 2.7V to 5.5V
Current consumption as low as 70μA depending
on programmed sample rate
Low-power Sleep Mode (<2μA @ 25°C)
Operation temperature: -40°C to +125°C
Small SOP8 package
High accuracy (±0.1% FSO @ -25 to +85°C;
±0.25% FSO @ -40 to +125°C)
2nd order charge-balancing analog-to-digital
converter provides low noise, 14-bit data at
sample rates exceeding 2kHz
Fast power-up to data output response: 3ms
at 4MHz
Digital compensation of sensor offset, sensitivity,
temperature drift, and non-linearity
Eight programmable analog gain settings com-
bine with a digital gain term; accommodates
bridges with spans <1mV/V and high offset
Internal or optional external temperature com-
pensation for sensor correction and for corrected
temperature output
48-bit customer ID field for module traceability
ZMD31014 Application: I
2
C Interface, Low Power
Bsink Option, Internal Temperature Correction
V
supply
RBic
iLite
VSS
BSINK
VBP
VBN
VDD
INT/SS
SDA/MISO
SCL/SCLK
(2.7V to 5.5V)
0.1µF
GND
© 2009 ZMD AG — Rev. 1.0
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.
The information furnished in this publication is subject to changes without notice.