参数资料
| 型号： | ADS1259BIPWR |
| 厂商： | Texas Instruments |
| 文件页数： | 20/48页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT SPI 14KSPS 20TSSOP |
| 标准包装： | 2,000 |
| 位数： | 24 |
| 采样率（每秒）： | 14k |
| 数据接口： | 串行，SPI? |
| 转换器数目： | 1 |
| 电压电源： | 模拟和数字，双 ± |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 带卷 (TR) |
| 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 |
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DRDY
CS
(DOUTwith
=0)
DIN
t
CAL
CALCommand
Calibrationcomplete
andfirstdataready.
SBAS424D
– JUNE 2009 – REVISED AUGUST 2011
CALIBRATION
The internal full-scale calibration word is bypassed
during offset calibration. Do not exceed +105% of
The ADS1259 has commands to correct for system
full-scale range for gain calibration. Note that the
offset and gain errors. Calibration can be performed
out-of-range
threshold
is
unaffected
by
gain
at any time the ADS1259 and associated circuitry
calibration.
(such as the input amplifier, external reference, power
supplies,
etc)
have
stabilized.
Options
include
Table 15. Calibration Timing
calibrating after power-up, after temperature changes,
tCAL CALIBRATION TIME (ms)
or calibration at regular intervals. To calibrate:
DATA RATE
(SPS)
sinc1
sinc2
Set the gate control mode (PULSE bit = 0)
14400
1.89
2.19
Start the ADS1259 conversions
3600
5.43
6.15
Apply the appropriate input to the ADS1259 (zero
or full-scale)
1200
14.9
16.7
Allow time for the input to completely settle
400
43.2
48.4
60
284
318
Send the OFSCAL (offset calibration) or GANCAL
(full-scale calibration) command, as appropriate
50
341
380
Wait for calibration to complete as given by the
16.6
1020
1140
time listed in Table 15. DRDY goes low when
10
1700
1900
calibration is complete. The conversion result at
1. fCLK = 7.3728MHz.
this time uses the new offset or full-scale
calibration words.
shows
the
calibration
timing.
During
calibration, do not send commands.
Perform offset calibration prior to the gain calibration.
Figure 56. Calibration Timing
Copyright
2009–2011, Texas Instruments Incorporated
27
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADS1259EVM | 功能描述:数据转换 IC 开发工具 ADS1259 Eval Mod RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| ADS1259EVM | 制造商:Texas Instruments 功能描述:DEVELOPMENT TOOL |
| ADS1259EVM-PDK | 功能描述:数据转换 IC 开发工具 ADS1259 Perf Demo Kit RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| ADS1259EVM-PDK | 制造商:Texas Instruments 功能描述:DEVELOPMENT TOOL |
| ADS1259IPW | 功能描述:模数转换器 - ADC Low-Noise 14kSPS 24B 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 |
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