参数资料
| 型号： | ISLA222P13IRZ |
| 厂商： | Intersil |
| 文件页数： | 20/33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）： | 130M |
| 数据接口： | 串行，SPI? |
| 转换器数目： | 2 |
| 功率耗散（最大）： | 697mW |
| 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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ISLA222P
27
FN7853.1
June 17, 2011
Digital Temperature Sensor
ADDRESS 0X4B: TEMP_COUNTER_HIGH
Bits [2:0] of this register hold the 3 MSBs of the 11-bit
temperature code.
Bit [7] of this register indicates a valid temperature_counter read
was performed. A logic ‘1’ indicates a valid read.
ADDRESS 0X4C: TEMP_COUNTER_LOW
Bits [7:0] of this register hold the lower 8 LSBs of the 11-bit
temperature code.
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 update rates result in lower
precision.
Bit [0] Select sampler bit. Set to ‘0’.
This set of registers provides digital access to a 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 counter is
Codes (in decimal) = 0.56*T(°C) + 618. This corresponds to
approximately a 65 LSB increase from -40° to +85°C.
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 sales support for more information:
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISLA222P20 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Dual 14-Bit, 250MSPS/200MSPS/130MSPS ADC |
| ISLA222P20IRZ | 功能描述:IC ADC 12BIT SRL/SPI 72QFN RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:FemtoCharge™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 位数:10 采样率（每秒）:357k 数据接口:DSP，MICROWIRE?，QSPI?，串行，SPI? 转换器数目:1 功率耗散（最大）:830µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:剪切带 (CT) 输入数目和类型:2 个单端，单极；2 个单端，双极；1 个差分，单极；1 个差分，双极 产品目录页面:1396 (CN2011-ZH PDF) 其它名称:MAX1395ETB+TCT |
| ISLA222P25 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Dual 14-Bit, 250MSPS/200MSPS/130MSPS ADC |
| ISLA222P25IRZ | 制造商:Intersil Corporation 功能描述:12-BIT 250MSPS DUAL ADC, 72-PIN QFN - Trays 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 250MSPS DL AD C 72-PIN |
| ISLA222S | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Dual 12-Bit, 250/200/125 MSPS JESD204B High Speed Serial Output ADC |
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