参数资料
| 型号： | ISLA212P20IRZ |
| 厂商： | Intersil |
| 文件页数： | 22/36页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT SRL/SPI 72QFN |
| 标准包装： | 1 |
| 系列： | FemtoCharge™ |
| 位数： | 12 |
| 采样率（每秒）： | 200M |
| 数据接口： | 串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 468mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 72-VFQFN 裸露焊盘 |
| 供应商设备封装： | 72-QFN（10x10） |
| 包装： | 托盘 |
| 输入数目和类型： | * |
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ISLA212P
29
FN7717.2
November 30, 2012
ADDRESS 0X4D: TEMP_COUNTER_CONTROL
Bit [7] Measurement mode select bit, set to ‘1’ for recommended
PTAT mode. ‘0’ (default) is IPTAT mode and is less accurate and
not recommended.
Bit [6] Temperature counter enable bit. Set to ‘1’ to enable.
Bit [5] Temperature counter power down bit. Set to ‘1’ to
power-down temperature counter.
Bit [4] Temperature counter reset bit. Set to ‘1’ to reset count.
Bit [3:1] Three bit frequency divider field. Sets temperature
counter update rate. Update rate is proportional to ADC sample
clock rate and divide ratio. A ‘101’ updates the temp counter
every ~66s (for 250MSPS). Faster updates rates result in lower
precision.
Bit [0] Select sampler bit. Set to ‘0’.
This set of registers provides digital access to an PTAT or
IPTAT-based temperature sensor, allowing the system to
estimate the temperature of the die, allowing easy access to
information that can be used to decide when to recalibrate the
A/D as needed.
The nominal transfer function of the temperature monitor should
be estimated for each device by reading the temperature sensor
at two temperatures and extrapolating a line through these two
points.
A typical temperature measurement can occur as follows:
1. Write ‘0xCA’ to address 0x4D - enable temp counter,
divide = ‘101’
2. Wait ≥ 132s (at 250Msps) - longer wait time ensures the
sensor completes one valid cycle.
3. Write ‘0x20’ to address 0x4D - power down, disable temp
counter - recommended between measurements. This
ensures that the output does not change between MSB and
LSB reads.
4. Read address 0x4B (MSBs)
5. Read address 0x4C (LSBs)
6. Record temp code value
7. Write ‘0x20’ to address 0x4D - power-down, disable temp
counter. Contact the factory for more information if needed.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISLA212P25 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:12-Bit, 500MSPS ADC Programmable Built-in Test Patterns |
| ISLA212P25IRZ | 制造商:Intersil Corporation 功能描述:12-BIT 250MSPS ADC, 72-PIN QFN - Trays 制造商:Intersil Corporation 功能描述:IC ADC 12BIT SPI/SRL 250M 72QFN |
| ISLA212P50 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:12-Bit, 500MSPS ADC Programmable Built-in Test Patterns |
| ISLA212P50_1105 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:12-Bit, 500MSPS ADC Programmable Built-in Test Patterns |
| ISLA212P50IRZ | 制造商:Intersil Corporation 功能描述:12-BIT 500MSPS ADC, 72-PIN QFN - Bulk 制造商:Intersil 功能描述:Intersil ISLA212P50IRZ Analog to Digital Converters (ADC) 制造商:Intersil Corporation 功能描述:IC ADC 12BIT SRL/SPI 72QFN 制造商:Intersil 功能描述:12-BIT 500MSPS ADC 7 2-PIN |
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