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| 型号： | ADS62P44IRGCT |
| 厂商： | Texas Instruments |
| 文件页数： | 8/78页 |
| 文件大小： | 0K |
| 描述： | IC ADC 14BIT DUAL 105MSPS 64VQFN |
| 产品培训模块： | Data Converter Basics |
| 标准包装： | 1 |
| 位数： | 14 |
| 采样率（每秒）： | 105M |
| 数据接口： | 串行，并联 |
| 转换器数目： | 2 |
| 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： | 64-VFQFN 裸露焊盘 |
| 供应商设备封装： | 64-VQFN 裸露焊盘（9x9） |
| 包装： | 标准包装 |
| 输入数目和类型： | 2 个差分，单极 |
| 其它名称： | 296-23137-6 |
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SLAS561C
– JULY 2007 – REVISED FEBRUARY 2012
SERIAL INTERFACE
The ADC has a set of internal registers, which can be accessed by the serial interface formed by pins SEN
(Serial interface Enable), SCLK (Serial Interface Clock) and SDATA (Serial Interface Data).
Serial shift of bits into the device is enabled when SEN is low. Serial data SDATA is latched at every falling edge
of SCLK when SEN is active (low). The serial data is loaded into the register at every 16th SCLK falling edge
when SEN is low. In case the word length exceeds a multiple of 16 bits, the excess bits are ignored. Data can be
loaded in multiple of 16-bit words within a single active SEN pulse.
The first 8 bits form the register address and the remaining 8 bits the register data. The interface can work with
SCLK frequency from 20 MHz down to low speeds (few Hertz), and also with a non-50% SCLK duty cycle.
Register Initialization
After power-up, the internal registers must be initialized to their default values. This can be done in one of two
ways:
1. Either through hardware reset by applying a high-going pulse on RESET pin (of width greater than 10ns) as
shown in Figure 6.
OR
2. By applying software reset. Using the serial interface, set the
<RST> bit to high. This initializes internal
registers to their default values and then self-resets the
<RST> bit to low. In this case the RESET pin is kept
low.
SERIAL INTERFACE TIMING CHARACTERISTICS
Typical values at 25
°C, min and max values across the full temperature range TMIN = –40°C to TMAX = 85°C, AVDD = 3.3 V,
DRVDD = 1.8 V to 3.3 V, unless otherwise noted.
PARAMETER
MIN
TYP
MAX
UNIT
fSCLK
SCLK frequency
> DC
20
MHz
tSLOADS
SEN to SCLK setup time
25
ns
tSLOADH
SCLK to SEN hold time
25
ns
tDS
SDATA setup time
25
ns
tDH
SDATA hold time
25
ns
16
Copyright
2007–2012, Texas Instruments Incorporated
Product Folder Link(s): ADS62P45, ADS62P44 ADS62P43, ADS62P42
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相关代理商/技术参数 |
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|---|---|
| ADS62P44IRGCTG4 | 功能描述:模数转换器 - ADC DUAL 14B 105MSPS Para 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 |
| ADS62P44RGC | 制造商:TI 制造商全称:Texas Instruments 功能描述:Dual Channel 14-Bit, 125/105/80/65 MSPS ADC with Parallel CMOS/DDR LVDS outputs |
| ADS62P45 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Dual Channel 14-Bit, 125/105/80/65 MSPS ADC with Parallel CMOS/DDR LVDS outputs |
| ADS62P45_08 | 制造商:TI 制造商全称:Texas Instruments 功能描述:DUAL CHANNEL, 14-BITS, 125/105/80/65 MSPS ADC WITH DDR LVDS/CMOS OUTPUTS |
| ADS62P45EVM | 功能描述:数据转换 IC 开发工具 ADS62P25 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 |
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