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| 型号： | THS1401CPFB |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | ADC |
| 英文描述： | 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP48 |
| 封装： | PLASTIC, TQFP-48 |
| 文件页数： | 8/28页 |
| 文件大小： | 625K |
| 代理商： | THS1401CPFB |
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THS1401
THS1403
THS1408
SLAS248D DECEMBER 1999 REVISED SEPTEMBER 2005
www.ti.com
16
PRINCIPLES OF OPERATION
Table 4. Control Register, Address 3, Read
BIT
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Function
PWD
REF
FOR
TM2
TM1
TM0
OFF
RES
Table 5. Control Register, Address 3, Write
BIT
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Function
PWD
REF
FOR
TM2
TM1
TM0
OFF
RES
Default
0
PWD:
Power down
0 = normal operation
1 = power down
REF:
Reference select
0 = internal reference
1 = external reference
FOR:
Output format
0 = straight binary
1 = 2s complement
TM20:
Test mode
000 = normal operation
001 = both inputs = REF
010 = IN+ at VCM (Voltage at CML pin), IN at REF
011 = IN+ at REF+, IN at REF
100 = normal operation
101 = both inputs = REF+
110 = IN+ at REF, IN at VCM (Voltage at CML pin)
111 = IN+ at REF, IN at REF+
OF:
Offset correction
0 = enable
1 = disable
RES
Reserved
Must be set to 0.
APPLICATION INFORMATION
driving the analog input
The THS1401/3/8 ADCs have a fully differential input. A differential input is advantageous with respect to SNR,
SFDR, and THD performance because the signal peak-to-peak level is 50% of a comparable single-ended
input.
There are three basic input configurations:
D Fully differential
D Transformer coupled single-ended to differential
D Single-ended
fully differential configuration
In this configuration, the ADC converts the difference (
IN) of the two input signals on IN+ and IN.
100 pF
IN+
IN
THS1401/3/8
22
100 pF
22
Figure 19. Differential Input
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相关代理商/技术参数 |
参数描述 |
|---|---|
| THS1401-EP | 制造商:TI 制造商全称:Texas Instruments 功能描述:14-BIT, 1/3/8 MSPS DSP COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS WITH INTERNAL REFERENCE AND PGA |
| THS1401EVM | 功能描述:数据转换 IC 开发工具 THS1401 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 |
| THS1401IPFB | 功能描述:模数转换器 - ADC 14-Bit 1/3/8 MSPS DSP-Compatible 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 |
| THS1401IPFBG4 | 功能描述:模数转换器 - ADC 14-Bit 1/3/8 MSPS DSP-Compatible 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 |
| THS1401PFB | 制造商:TI 制造商全称:Texas Instruments 功能描述:14-BIT, 1/3/8 MSPS DSP COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS WITH INTERNAL REFERENCE AND PGA |
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