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参数资料
| 型号： | ISL26134AV28EV1Z |
| 厂商： | Intersil |
| 文件页数： | 8/23页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR ISL26134AV28 |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 24 |
| 采样率（每秒）： | 80 |
| 数据接口： | USB |
| 输入范围： | ±9.766mV |
| 工作温度： | -40°C ~ 105°C |
| 已用 IC / 零件： | ISL26134 |
| 已供物品： | 板 |
ISL26132, ISL26134
16
FN6954.1
September 9, 2011
Offset Calibration Control
The offset internal to the ADC can be removed by performing an
offset calibration operation. Offset calibration can be initiated
immediately after reading a conversion word with 24 SCLKs by
issuing two additional SCLKs. The offset calibration operation will
begin immediately after the 26th SCLK occurs. Figure 32
illustrates the timing details for the offset calibration operation.
During offset calibration, the analog inputs are shorted internally
and a regular conversion is performed. This conversion generates
a conversion word that represents the offset error. This value is
stored and used to digitally remove the offset error from future
conversion words. The SDO/RDY output will fall to indicate the
completion of the offset calibration operation.
TABLE 10. INTERFACE TIMING CHARACTERISTICS
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNITS
t2
SDO/RDY Low to first SLK
0
ns
t3
SCLK pulsewidth, Low or High
100
ns
t4
SCLK High to Data Valid
50
ns
t5
Data Hold after SCLK High
0
ns
t6
Register Update Time
39
s
t7
Conversion Period
SPEED = 1
12.5
ms
SPEED = 0
100
ms
FIGURE 31. OUTPUT DATA WAVEFORMS FOR SDO/RDY POLLING
NEW DATA READY
DATA READY
SDO/RDY
SCLK
23
22
21
0
24
1
25
DATA
25TH SCLK FORCES
SDO/RDY HIGH
FIGURE 32. OFFSET CALIBRATION WAVEFORMS
DATA READY AFTER CALIBRATION
CALIBRATION BEGINS
SDO/RDY
SCLK
23
22
21
0
23
24
25
26
1
t8
FIGURE 33. STANDBY MODE WAVEFORMS
DATA READY
START
CONVERSION
STANDBY MODE
SDO/RDY
SCLK
23
22
21
0
1
24
t11
t10
t9
23
TABLE 11. SDO/RDY DELAY AFTER CALIBRATION
PARAMETER
MIN
MAX
UNITS
t8
SPEED = 1
108
109
ms
SPEED = 0
808
809
ms
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL26134AVZ | 功能描述:模数转换器 - ADC ISL26134AVZ LW-NOISE 24-BIT TI-COMP D/S RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ISL26134AVZ-T | 功能描述:模数转换器 - ADC ISL26134AVZ LW-NOISE 24-BIT TI-COMP D/S RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ISL26134AVZ-T7A | 功能描述:模数转换器 - ADC ISL26134AVZ LW-NOISE 24BIT DELTASIGMA ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ISL26310 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:12-bit, 125kSPS Low-power ADCs with Single-ended and Differential Inputs and Multiple Input Channels |
| ISL26310FBZ | 功能描述:IC ADC 12BIT SPI/SRL 125K 8SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:250 系列:- 位数:12 采样率（每秒）:1.8M 数据接口:并联 转换器数目:1 功率耗散（最大）:1.82W 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:48-LQFP 供应商设备封装:48-LQFP（7x7） 包装:管件 输入数目和类型:2 个单端，单极 |
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