参数资料
型号: ADS62P44IRGCT
厂商: Texas Instruments
文件页数: 48/78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
SLAS561C
– JULY 2007 – REVISED FEBRUARY 2012
COARSE GAIN AND PROGRAMMABLE FINE GAIN
ADS62P4X includes gain settings that can be used to get improved SFDR performance (over 0dB gain mode).
For each gain setting, the analog input full-scale range scales proportionally, as shown in Table 20.
The coarse gain is a fixed setting of 3.5 dB and is designed to improve SFDR with little degradation in SNR. The
fine gain is programmable in 0.5 dB steps from 0 to 6 dB; however the SFDR improvement is achieved at the
expense of SNR. So, the programmable fine gain makes it possible to trade-off between SFDR and SNR. The
coarse gain makes it possible to get best SFDR but without losing SNR significantly.
The gains can be programmed using the serial interface (bits COARSE GAIN and FINE GAIN). Note that the
default gain after reset is 0 dB.
Table 20. Full-Scale Range Across Gains
GAIN, dB
TYPE
FULL-SCALE, VPP
0
Default after reset
2V
3.5
Coarse (fixed)
1.34
0.5
1.89
1.0
1.78
1.5
1.68
2.0
1.59
2.5
1.50
3.0
1.42
Fine (programmable)
3.5
1.34
4.0
1.26
4.5
1.19
5.0
1.12
5.5
1.06
6.0
1.00
CLOCK INPUT
The clock inputs can be driven differentially (SINE, LVPECL or LVDS) or single-ended (LVCMOS), with little or
no difference in performance between them. The common-mode voltage of the clock inputs is set to VCM using
internal 5-k
resistors as shown in Figure 90. This allows using transformer-coupled drive circuits for sine wave
clock or ac-coupling for LVPECL, LVDS clock sources (Figure 92 and Figure 93).
52
Copyright
2007–2012, Texas Instruments Incorporated
相关PDF资料
PDF描述
VE-B5L-MW CONVERTER MOD DC/DC 28V 100W
16982-5SG-522 CONN PLUG 5POS CABLE SKT
VE-BW4-IV-F1 CONVERTER MOD DC/DC 48V 150W
VE-B5K-MX-F4 CONVERTER MOD DC/DC 40V 75W
PX0735/P CONN JAM NUT 2POS W/PINS
相关代理商/技术参数
参数描述
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