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参数资料
| 型号： | ADS1203IPWR |
| 英文描述： | MOTOR CONTROL CURRENT MEASUREMENT |
| 中文描述： | 电机控制电流测量 |
| 文件页数： | 3/24页 |
| 文件大小： | 276K |
| 代理商： | ADS1203IPWR |
SBAS318 JUNE 2004
www.ti.com
3
ELECTRICAL CHARACTERISTICS
Over recommended operating free-air temperature range at 40
°
C to +85
°
C, VDD = +5V, VIN+ = 250mV to +250mV, VIN = 0V, Mode 3,
MCLK input = 20MHz, and 16-bit Sinc3 filter, with OSR = 256, unless otherwise noted.
ADS1203IPW
TYP(1)
PARAMETER
Resolution
TEST CONDITIONS
MIN
16
MAX
UNITS
Bits
DC Accuracy
INL
Integral linearity error(2)
±
1
±
3
LSB
0.001
0.005
%
DNL
Differential nonlinearity(3)
±
1
LSB
VOS
TCVOS
GERR
TCGERR
PSRR
Input offset
220
±
1000
μ
V
Input offset drift
Gain error(4)
3.5
8
μ
V/
°
C
0.2
±
1
%
Gain error drift
20
ppm/
°
C
Power-supply rejection ratio
4.75V < VDD < 5.25V
80
dB
Analog Input
FSR
Full-scale differential range
Operating common-mode signal(3)
(VIN+) (VIN)
±
320
mV
0.1
5
V
Input capacitance
Common-mode
3
pF
Input leakage current
±
1
nA
Differential input resistance
Equivalent
28
k
Differential input capacitance
5
pF
CMRR
Common-mode rejection ratio
At DC
92
dB
VIN = 0V to 5V at 50kHz
105
dB
Internal Voltage Reference
VOUT
Reference voltage output
Scale to 320mV
2.475
2.5
2.525
V
Accuracy
Scale to 320mV
±
1
%
dVOUT/dT
PSRR
Reference temperature drift
±
20
ppm/
°
C
Power-supply rejection ratio
80
dB
Startup time
to 0.1% at CL = 0
0.1
ms
Internal Clock for Modes 0, 1, and 2
Clock frequency
9
10
11
MHz
External Clock for Mode 3
Clock frequency(5)
16
20
24
MHz
AC Accuracy
SINAD
Signal-to-noise + distortion
VIN =
±
250mVPP at 5kHz
VIN =
±
250mVPP at 5kHz
VIN =
±
250mVPP at 5kHz
VIN =
±
250mVPP at 5kHz
82.5
85
dB
SNR
Signal-to-noise ratio
83
85
dB
THD
Total harmonic distortion
95
88
dB
SFDR
Spurious-free dynamic range
90
95
dB
(1)All typical values are at TA = +25
°
C.
(2)Integral nonlinearity is defined as the maximum deviation of the line through the end points of the specified input range of the transfer curve
for VIN+ = 250mV to +250mV, expressed either as the number of LSBs or as a percent of measured input range (500mV).
(3)Ensured by design.
(4)Maximum values, including temperature drift, are ensured over the full specified temperature range.
(5)With reduced accuracy, minimum clock can go from 1MHz up to 32MHz.
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| ADS1203IPWRG4 | 功能描述:模数转换器 - ADC Current Shunt D-S Modulator 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 |
| ADS1203IPWT | 功能描述:模数转换器 - ADC Current Shunt D-S Modulator 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 |
| ADS1203IPWTG4 | 功能描述:模数转换器 - ADC Current Shunt D-S Modulator 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 |
| ADS1203IRGTR | 功能描述:模数转换器 - ADC Current Shunt D-S Modulator 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 |
| ADS1203IRGTRG4 | 功能描述:模数转换器 - ADC Current Shunt D-S Modulator 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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