参数资料
型号: ADS1259EVM-PDK
厂商: Texas Instruments
文件页数: 20/48页
文件大小: 0K
描述: KIT PERFORMANCE DEMO FOR ADS1259
标准包装: 1
ADC 的数量: 1
位数: 24
采样率(每秒): 14k
数据接口: 串行,SPI?
工作温度: -40°C ~ 125°C
已用 IC / 零件: ADS1259
已供物品: 2 个板,文档,软件
其它名称: 296-30635
ADS1259EVM-PDK-ND
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-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
ADS1259IPW 制造商:Texas Instruments 功能描述:A/D CONVERTER (A-D) IC
ADS1259IPWR 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
ADS1259QPWRQ1 功能描述:24 Bit Analog to Digital Converter 1 Input 1 Sigma-Delta 20-TSSOP 制造商:texas instruments 系列:- 包装:剪切带(CT) 零件状态:有效 位数:24 采样率(每秒):14k 输入数:1 输入类型:差分,单端 数据接口:SPI 配置:ADC 无线电 - S/H:ADC:- A/D 转换器数:1 架构:三角积分 参考类型:外部 电压 - 电源,模拟:5V 电压 - 电源,数字:2.7 V ~ 5.25 V 特性:PGA 工作温度:-40°C ~ 105°C 封装/外壳:20-TSSOP(0.173",4.40mm 宽) 供应商器件封装:20-TSSOP 标准包装:1