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参数资料
| 型号： | TLV2541EVM |
| 厂商： | Texas Instruments |
| 文件页数： | 27/32页 |
| 文件大小： | 0K |
| 描述： | EVAL MOD FOR TLV2541 |
| 产品培训模块： | Data Converter Basics |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 12 |
| 采样率（每秒）： | 200k |
| 数据接口： | 串行 |
| 工作温度： | 0°C ~ 70°C |
| 已用 IC / 零件： | TLV2541 |
| 已供物品： | 板 |
| 相关产品： | TLV2541IDRG4-ND - IC 12BIT 200 KSPS ADC S/O 8-SOIC TLV2541IDR-ND - IC 12BIT 200 KSPS ADC S/O 8-SOIC TLV2541IDGKRG4-ND - IC 12BIT 200 KSPS ADC S/O 8-MSOP TLV2541IDGKR-ND - IC 12BIT 200 KSPS ADC S/O 8-MSOP TLV2541IDGKG4-ND - IC 12BIT 200 KSPS ADC S/O 8-MSOP TLV2541IDG4-ND - IC 12BIT 200 KSPS ADC S/O 8-SOIC TLV2541CDGKRG4-ND - IC 12BIT 200 KSPS ADC S/O 8-MSOP TLV2541CDGKR-ND - IC 12BIT 200 KSPS ADC S/O 8-MSOP TLV2541CDGKG4-ND - IC 12BIT 200 KSPS ADC S/O 8-MSOP 296-2973-5-ND - IC 12BIT 200KPS SC S/O 8-MSOP 更多... |
| 其它名称： | 296-20577 TLV2541EVM-ND |
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TLV2541, TLV2542, TLV2545
2.7-V TO 5.5-V, LOW-POWER, 12-BIT, 140/200 KSPS,
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER DOWN
SLAS245E MARCH 2000 REVISED APRIL 2010
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
detailed description (continued)
GND/AIN()
ADC Code
AIN
Charge
Redistribution
DAC
Control
Logic
_
+
Figure 1. Simplified SAR Circuit
serial interface
OUTPUT DATA FORMAT
MSB
LSB
D15D4
D3D0
Conversion result (OD11OD0)
Don’t care
The output data format is binary (unipolar straight binary).
binary
Zero-scale code = 000h, Vcode = GND
Full-scale code = FFFh, Vcode = VREF 1 LSB
pseudo-differential inputs
The TLV2545 operates in pseudo-differential mode. The inverted input is available on pin 5. It can have a
maximum input ripple of ±0.2 V. This is normally used for ground noise rejection.
control and timing
start of the cycle
Each cycle may be started by either CS, FS, or a combination of both. The internal state machine requires one
SCLK high-to-low transition to determine the state of these control signals so internal blocks can be powered
up in an active cycle. Special care to SPI mode is necessary. Make sure there is at least one SCLK whenever
CS (pin 1) is high to ensure proper operation.
TLV2541
D Control via CS ( FS = 1 at the falling edge of CS)—The falling edge of CS is the start of the cycle. The MSB
should be read on the first falling SCLK edge after CS is low. Output data changes on the rising edge of
SCLK. This is typically used for a microcontroller with an SPI interface, although it can also be used for a
DSP. The microcontroller SPI interface should be programmed for CPOL = 0 (serial clock referenced to
ground) and CPHA = 1 (data is valid on the falling edge of the serial clock). At least one falling edge transition
on SCLK is needed whenever CS is brought high.
D Control via FS (CS is tied/held low)—The MSB is presented after the rising edge of FS. The falling edge
of FS is the start of the cycle. The MSB should be read on the first falling edge of SCLK after FS is low. This
is the typical configuration when the ADC is the only device on the DSP serial port.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TLV2541ID | 功能描述:模数转换器 - ADC 12bit SAR 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 |
| TLV2541IDG4 | 功能描述:模数转换器 - ADC 12-Bit 200 kSPS Serial Out 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 |
| TLV2541IDGK | 功能描述:模数转换器 - ADC 12bit SAR 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 |
| TLV2541IDGKG4 | 功能描述:模数转换器 - ADC 12-Bit 200 kSPS Serial Out 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 |
| TLV2541IDGKR | 功能描述:模数转换器 - ADC 12-Bit 200 kSPS Serial Out 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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