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ZMD31015AEBR 参数 Datasheet PDF下载

ZMD31015AEBR图片预览
型号: ZMD31015AEBR
PDF下载: 下载PDF文件 查看货源
内容描述: 与dignostics低成本sensro信号调理器 [Low-cost sensro signal conditioner with dignostics]
分类和应用:
文件页数/大小: 2 页 / 441 K
品牌: ZMD [ Zentrum Mikroelektronik Dresden AG ]
 浏览型号ZMD31015AEBR的Datasheet PDF文件第2页  
The
Analog
Mixed Signal Company
ZMD31015
RBic
dLite™
Low-Cost Sensor Signal Conditioner
with Diagnostics
P R E L I M I N A RY
Features
• Digital compensation of sensor offset, sensitivity, temperature
drift and non-linearity
• Programmable analog gain and digital gain;
accommodates bridges with spans < 1mV/V and high offset
• Many diagnostic features on chip (e.g., EEPROM signature,
bridge connection checks, bridge short detection, power loss
detection)
• Independently programmable high and low clipping levels
• 24-bit customer ID field for module traceability
• Digital calibration and configuration via one-wire interface –
quick and precise
• Internal temperature compensation reference
(no external components)
• Option for external temperature compensation with addition
of single diode
• Output options: rail-to-rail ratiometric analog voltage
(12-bit resolution), absolute analog voltage,
digital one-wire-interface
• Supply voltage 2.7 to 5.5V; with external JFET, 5.5 to 30V
• Fast power-up to data out response; output available 5ms after
power up
• Current consumption depends on programmed sample rate;
1mA down to 250µA (typical)
• Operation temperature: –50°C to +150°C
• Fast response time: 1ms (typical)
• High voltage protection up to 30V with external JFET
• No external trimming components required
• High accuracy (±0.1% FSO @ -25 to 85°C;
±0.25% FSO @ -50 to 150°C)
The RBic
dLite
TM
is adjustable to nearly all piezo-resistive bridge
sensors. Measured and corrected bridge values are provided
at the SIG
TM
pin, which can be configured as an analog voltage
output or as a one-wire serial digital output.
The digital one-wire interface can be used for a simple PC-
controlled calibration procedure to program a set of calibration
coefficients into an on-chip EEPROM. The calibrated RBic
dLite
TM
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 RBic
dLite
TM
particularly well suited for automotive applications.
• The RBic
dLite
TM
Development Kit is available –
includes the Development Board, SOP8 samples, software,
and documentation.
• Support for industrial mass calibration is available
• Quick circuit customization possible for large production volumes
Application Circuit
Brief Description
The RBic
dLite
TM
is a CMOS integrated circuit for highly accurate
amplification and sensor-specific correction of bridge sensor
signals. Digital compensation of sensor offset, sensitivity,
temperature 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.
Typical RBic
dLite
TM
Application Circuit