ZMD31014_1 [ZMD]
RBic Low-Cost Sensor Signal Conditioner with I2C & SPI; RBIC低成本传感器信号调理器，带有I2C和SPI
| 型号： | ZMD31014_1 |
| 厂家： | 
Zentrum Mikroelektronik Dresden AG |
| 描述： | RBic Low-Cost Sensor Signal Conditioner with I2C & SPI |
| 文件： | 总2页 (文件大小：1244K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ZMD31014
RBic ™ Low-Cost Sensor Signal Conditioner with I2C & SPI
iLite
Brief Description
Benefits
The RBiciLiteTM is a CMOS integrated circuit for highly
accurate amplification and analog-to-digital conver-
sion of differential and half-bridge input signals. The
• Simple PC-controlled configuration and single-
pass digital calibration via I2C interface – quick,
precise, and low cost; SPI option for measure-
TM
RBiciLite can compensate the measured signal for
ment mode
Eliminates need for external trimming
offset, 1st and 2nd order span, and 1st and 2nd 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.
•
•
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
TM
The RBiciLite is adjustable to nearly all piezo-resis-
Available Support
tive bridge sensors. Measured and corrected bridge
values are provided at digital output pins, which can
be configured as I2C or SPI. The digital I2C interface
can be used for a simple PC-controlled calibration
procedure to program calibration coefficients into an
• Evaluation Kit
• Application Notes
• Mass Calibration Solution
TM
on-chip EEPROM. The calibrated RBiciLite and a
specific sensor are mated digitally: fast, precise, and
without the cost overhead associated with trimming
by external devices or laser trimming.
Physical Characteristics
• Wide supply voltage capability: 2.7V to 5.5V
• Current consumption as low as 70μA depending
TM
Integrated diagnostics functions make the RBiciLite
on programmed sample rate
particularly well-suited for safety-critical applications.
• Low-power Sleep Mode (<2μA @ 25°C)
• Operation temperature: -40°C to +125°C
• Small SOP8 package
Features
• High accuracy (±0.1% FSO @ -25 to +85°C;
ZMD31014 Application: I2C Interface, Low Power
Bsink Option, Internal Temperature Correction
±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
Vsupply
(2.7V to 5.5V)
• Fast power-up to data output response: 3ms
RBiciLite
™
at 4MHz
• Digital compensation of sensor offset, sensitivity,
VSS
VDD
INT/SS
temperature drift, and non-linearity
BSINK
VBP
• Eight programmable analog gain settings com-
bine with a digital gain term; accommodates
bridges with spans <1mV/V and high offset
SDA/MISO
SCL/SCLK
VBN
0.1µF
GND
• Internal or optional external temperature com-
pensation for sensor correction and for corrected
temperature output
• 48-bit customer ID field for module traceability
© 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.
ZMD31014
RBic ™ Low-Cost Sensor Signal Conditioner with I2C & SPI
iLite
VDD
(2.7V - 5.5V)
0.1µF
ZMD31014 Block Diagram
Temperature
Reference
POR/Oscillator
Sensor
Applications
Diagnostics
RBiciLite™
Industrial: building automation,
dataloggers, pressure meters, leak
detection monitoring
VBP
VBN
A
Medical: infusion pumps, blood
pressure meters, air mattresses,
apnea monitors
D
INMUX
PreAmp
14-Bit ADC
Optional
Bsink
White Goods / Appliances: fluid
level, refrigerant
INT/SS
EEPROM w/
Charge Pump
DSP
Core
I2C or SPI
Interface
SDA/MISO
SCL/SCLK
Bsupply
Consumer: body monitors, portable
monitors, desktop weather stations,
bathroom scales, toys/games
& Checksum
Optional
RTD
VSS
Application: Bridge TC Used for External Temperature
Application: Generic Differential A2D Converter
VSupply
RBiciLite
™
VSS
VDD
BSINK
VBP
INT/SS
SDA/MISO
VBN
SCL/SCLK
0.1µF
GND
Ordering Information
Sales Code
ZMD31014DAB
ZMD31014DAC
ZMD31014DAD
ZMD31014DAG1
Description
Package
ZMD31014 RBiciLite™ Die — Temperature range: -40°C to +125°C
ZMD31014 RBiciLite™ Die — Temperature range: -40°C to +125°C
ZMD31014 RBiciLite™ Die — Temperature range: -40°C to +125°C
ZMD31014 RBiciLite™ SOP8 (150 mil) — Temperature range: -40° to +125°C
Unsawn on Wafer
Sawn on Wafer Frame
Waffle Pack
Tube: add “-T” to sales code
Reel: add “-R”
ZMD31014KIT
ZMD31014 SSC Evaluation Kit: Communication Board, SSC Board, Sensor Replacement Board,
Software, USB Cable, 5 IC Samples
Kit
Sales and Further Information
www.zmdi.com
sales@zmdi.com
ZMD Far East, Ltd.
Zentrum Mikroelektronik
Dresden AG (ZMD AG)
Grenzstrasse 28
ZMD America, Inc.
8413 Excelsior Drive
Suite 200
ZMD AG, Japan Office
2nd Floor, Shinbashi Tokyu Bldg. 3F, No. 51, Sec. 2,
4-21-3, Shinbashi, Minato-ku
Tokyo, 105-0004
Japan
Keelung Road
11052 Taipei
Taiwan
01109 Dresden
Germany
Madison, WI 53717
USA
Phone +49 (0)351.8822.7.772
Phone +01 (608) 829-1987
Phone +81.3.6895.7410
Phone +886.2.2377.8189
Fax
+49(0)351.8822.87.772
Fax
+01 (631) 549-2882
Fax
+81.3.6895.7301
Fax
+886.2.2377.8199
DISCLAIMER: This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Zentrum Mikroelektronik Dresden AG
(ZMD AG) assumes no obligation regarding future manufacture unless otherwise agreed to in writing. The information furnished hereby is believed to be true and accurate. However, under
no circumstances shall ZMD AG be liable to any customer, licensee, or any other third party for any special, indirect, incidental, or consequential damages of any kind or nature whatsoever
arising out of or in any way related to the furnishing, performance, or use of this technical data. ZMD AG hereby expressly disclaims any liability of ZMD AG to any customer, licensee or any
other third party, and any such customer, licensee and any other third party hereby waives any liability of ZMD AG for any damages in connection with or arising out of the furnishing, perfor-
mance or use of this technical data, whether based on contract, warranty, tort (including negligence), strict liability, or otherwise.
© 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.
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