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| 型号： | THS1230IPW |
| 厂商： | Texas Instruments |
| 文件页数： | 4/25页 |
| 文件大小： | 0K |
| 描述： | IC 12 BIT 30 MSPS A/D 28-TSSOP |
| 产品培训模块： | Data Converter Basics |
| 标准包装： | 50 |
| 位数： | 12 |
| 采样率（每秒）： | 30M |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 220mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 28-TSSOP |
| 包装： | 管件 |
| 输入数目和类型： | 1 个差分，单极 |
| 产品目录页面： | 895 (CN2011-ZH PDF) |
| 配用： | 296-10012-ND - EVALUATION MODULE FOR THS1230 |
| 其它名称： | 296-2838-5 |
www.ti.com
AIN
0
4095
2V
MODE 2, CON[1:0] = 10
OUTPUT
CODE
AIN
0
4095
1V
MODE 1, CON[1:0] = 01
OUTPUT
CODE
AIN+
Signal Processing Chain (Sample and Hold, ADC)
THS1230
SLAS291B – OCTOBER 2000 – REVISED MARCH 2004
Table 1. Input Modes of Operation
MODE
CON1
CON0
MODE OF OPERATION
0
Device powered down
1
0
1
Differential mode
× 1
2
1
0
Differential mode
× 0.5
3
1
Not used
Modes 1 and 2 are shown in Figure 14.
Figure 14. Input Mode Configurations
The gain of the sample and hold changes with the CON1 and the CON0 inputs. Table 2 shows the gain of the
sample and hold and the levels applied at the AIN+ and AIN– analog inputs for Mode 1 and Mode 2. The
common mode level for the two analog inputs is at AVDD/2.
Table 2. Input Mode Switching
(AIN+) – (AIN–)
MODE
CON1
CON0
S/H GAIN
MIN
MAX
1
0
1
–1 V
1 V
×1
2
1
0
–2 V
2 V
×0.5
Table 2 assumes that the delta in ADC reference voltages VREFT and VREFB is set to 1 V, i.e., VREFT – VREFB = 1
V. Note that VREFB and VREFT can be set externally, which will scale the numbers given in this table.
The user-chosen operating configuration and reference voltages determine what input signal voltage range the
THS1230 can handle.
The following sections explain both the internal signal flow of the device and how the input signal span is related
to the ADC reference voltages, as well as the ways in which the ADC reference voltages can be buffered
internally or externally applied.
Figure 15 shows the signal flow through the sample and hold unit and the PGA to the ADC core.
12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| THS1230IPWG4 | 功能描述:模数转换器 - ADC Low Power High-Speed 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 |
| THS1230IPWR | 功能描述:模数转换器 - ADC Low Power High-Speed 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 |
| THS1230IPWRG4 | 功能描述:模数转换器 - ADC Low Power High-Speed 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 |
| THS124 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:HIGH STABILITY MOTOR CONTROL. DIGITAL TACHOMETER. CRANK SHAFT POSITION SENSOR. |
| THS124(TE85R,F) | 制造商:Toshiba 功能描述:Hall Effect Sensor 4-Pin 10-3C1A T/R Cut Tape |
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