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参数资料
型号： TLC2574IPWR
厂商： TEXAS INSTRUMENTS INC
元件分类： ADC
英文描述： 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封装： GREEN, PLASTIC, TSSOP-20
文件页数： 45/48页
文件大小： 1092K
代理商： TLC2574IPWR
TLC3574, TLC3578, TLC2574, TLC2578
5V ANALOG, 3/5V DIGITAL, 14/12BIT, 200KSPS, 4/8CHANNEL
SERIAL ANALOGTODIGITAL CONVERTERS WITH ±10V INPUTS
SLAS262C OCTOBER 2000 REVISED MAY 2003
6
WWW.TI.COM
general electrical characteristics over recommended operating free-air temperature range, single-
ended input, normal long sampling, 200 KSPS, AVDD = 5 V, VREFP = 4 V, VREFM = 0 V,
SCLK frequency = 25 MHz, fixed channel at CONV mode 00, analog input signal source
resistance = 25
(unless otherwise noted)
TLC3574/78 and TLC2574/78
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Resolution
14
bits
Analog Input
Voltage range
10
V
Selected analog input channel bias current
Selected channel at 10 V
0.8
1.6
mA
Selected analog input channel bias current
Selected channel at –10 V
1.6
1.2
mA
Impedance
10
k
Capacitance
30
pF
Reference
VREFP
Positive reference voltage
3.96
4
4.04
V
VREFM
Negative reference voltage
0
AGND
V
Input impedance
No conversion (AVDD = 5V, CS= DVDD,
SCLK=DGND)
100
M
Input impedance
Normal long sampling (AVDD = 5V, CS=DGND,
SCLK = 25 MHz, External conversion clock)
8.3
12.5
k
No conversion (AVDD = 5 V,
SCLK = DGND, CS = DVDD)
1.5
A
Reference current
Normal long sampling (AVDD = 5 V, CS = DGND,
External conversion clock, SCLK = 25 MHz,
VREF = 5 V)
0.4
0.6
mA
Internal oscillation frequency
DVDD = 2.7 V – 5.5 V
6.5
MHz
Internal OSC, 6.5 MHz minimum
TLC3574/78
2.785
t(conv)
Conversion time
Internal OSC, 6.5 MHz minimum
TLC2574/78
2.015
S
t(conv)
Conversion time
Conversion clock is external source,
TLC3574/78
2.895
S
Conversion clock is external source,
SCLK = 25 MHz (see Note 1)
TLC2574/78
2.095
Acquisition time
Normal short sampling
1.2
S
Throughput rate (see Note 2)
Normal long sampling, fixed channel
in mode 00 or 01
200
KSPS
All typical values are at TA = 25°C.
NOTES:
1. Conversion time t(conv) is (18 × 4 × SCLK) + 15 ns for TLC3574/78. Conversion time is (13 × 4 × SCLK) + 15 ns for TLC2574/78.
2. This is for a fixed channel in conversion mode 00 or 01. When switching the channels, additional multiplexer setting time is required
to overcome the memory effect of the charge redistribution DAC.
相关PDF资料
PDF描述
TLC2574IDWR 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
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相关代理商/技术参数
参数描述
TLC2574IPWRG4 功能描述:模数转换器 - ADC Serial Out Low Power 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
TLC2578EVM 功能描述:数据转换 IC 开发工具 TLC2578 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
TLC2578IDW 功能描述:模数转换器 - ADC Serial Out Low Power 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
TLC2578IDWG4 功能描述:模数转换器 - ADC Serial Out Low Power 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
TLC2578IDWR 功能描述:模数转换器 - ADC Serial Out Low Power 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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