参数资料
型号: MAX19505ETM+
厂商: Maxim Integrated Products
文件页数: 25/35页
文件大小: 0K
描述: IC ADC 8BIT 1CH 65MSPS 48TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 43
位数: 8
采样率(每秒): 65M
数据接口: 串行,并联
转换器数目: 1
功率耗散(最大): 99mW
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: 48-WFQFN 裸露焊盘
供应商设备封装: 48-TQFN-EP(7x7)
包装: 托盘
输入数目和类型: 2 个单端,单极;1 个差分,单极
MAX19505
Dual-Channel, 8-Bit, 65Msps ADC
______________________________________________________________________________________
31
Applications Information
Analog Inputs
Transformer-Coupled Differential Analog Input
The MAX19505 provides better SFDR and THD with
fully differential input signals than a single-ended input
drive. In differential input mode, even-order harmonics
are lower as both inputs are balanced, and each of the
ADC inputs only require half the signal swing compared
to single-ended input mode.
An RF transformer (Figure 18) provides an excellent
solution for converting a single-ended signal to a fully
differential signal. Connecting the center tap of the
transformer to CM_ provides a common-mode voltage.
The transformer shown has an impedance ratio of 1:1.4.
Alternatively, a different step-up transformer can be
selected to reduce the drive requirements. A reduced
signal swing from the input driver can also improve the
overall distortion. The configuration of Figure 18 is good
for frequencies up to Nyquist (fCLK/2).
Figure 17. Integrated Voltage Regulator
IN
2.3V TO 3.5V
ENABLE
OUT
1.8V
REGULATOR
REFERENCE
INTERNAL
ANALOG
CIRCUITS
AVDD
(PINS 1, 12, 13, 48)
GND
Figure 19. Transformer-Coupled Input Drive for Input Frequencies Beyond Nyquist
1
5
3
6
2
4
N.C.
VIN
0.1
F
T1
MINI-CIRCUITS
ADT1-1WT
IN_+
CM_
IN_-
N.C.
1
5
3
6
2
4
N.C.
T2
MINI-CIRCUITS
ADT1-1WT
N.C.
75
0.5%
75
0.5%
110
0.5%
110
0.5%
0.1
F
MAX19505
Figure 18. Transformer-Coupled Input Drive for Input
Frequencies Up to Nyquist
MAX19505
1
5
3
6
2
4
N.C.
VIN
0.1
F
T1
MINI-CIRCUITS
ADT1-1WT
36.5
0.5%
36.5
0.5%
0.1
F
IN_+
CM_
IN_-
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相关代理商/技术参数
参数描述
MAX19505ETM+ 功能描述:模数转换器 - ADC 8-Bit 2Ch 65Msps 1.8V Precision 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
MAX19505ETM+T 功能描述:模数转换器 - ADC 8-Bit 2Ch 65Msps 1.8V Precision 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
MAX19505EVKIT+ 功能描述:数据转换 IC 开发工具 MAX19505-07/15-17 Eval Kit 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
MAX19506ETM+ 功能描述:模数转换器 - ADC 8-Bit 2Ch 100Msps 1.8V Precision 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
MAX19506ETM+T 功能描述:模数转换器 - ADC 8-Bit 2Ch 100Msps 1.8V Precision 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