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AD6645ASVZ-105 PDF预览

AD6645ASVZ-105

更新时间: 2024-02-03 22:58:09
品牌 Logo 应用领域
亚德诺 - ADI 转换器模数转换器PC
页数 文件大小 规格书
24页 776K
描述
14-Bit, 80 MSPS/105 MSPS A/D Converter

AD6645ASVZ-105 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:QFP
包装说明:HTQFP,针数:52
Reach Compliance Code:unknown风险等级:5.7
Is Samacsys:N最大模拟输入电压:2.2 V
最小模拟输入电压:转换器类型:ADC, PROPRIETARY METHOD
JESD-30 代码:S-PQFP-G52JESD-609代码:e3
长度:12 mm湿度敏感等级:3
模拟输入通道数量:1位数:14
功能数量:1端子数量:52
最高工作温度:85 °C最低工作温度:-10 °C
输出位码:2'S COMPLEMENT BINARY输出格式:PARALLEL, WORD
封装主体材料:PLASTIC/EPOXY封装代码:HTQFP
封装形状:SQUARE封装形式:FLATPACK, HEAT SINK/SLUG, THIN PROFILE
峰值回流温度(摄氏度):260采样速率:105 MHz
采样并保持/跟踪并保持:TRACK座面最大高度:1.2 mm
标称供电电压:5 V表面贴装:YES
技术:BIPOLAR温度等级:OTHER
端子面层:MATTE TIN端子形式:GULL WING
端子节距:0.65 mm端子位置:QUAD
处于峰值回流温度下的最长时间:40宽度:12 mm
Base Number Matches:1

AD6645ASVZ-105 数据手册

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14-Bit, 80 MSPS/105 MSPS  
A/D Converter  
AD6645  
generation in a wideband ADC family, preceded by the AD9042  
(12-bit, 41 MSPS), the AD6640 (12-bit, 65 MSPS, IF sampling),  
and the AD6644 (14-bit, 40 MSPS/65 MSPS).  
FEATURES  
SNR = 75 dB, fIN 15 MHz, up to 105 MSPS  
SNR = 72 dB, fIN 200 MHz, up to 105 MSPS  
SFDR = 89 dBc, fIN 70 MHz, up to 105 MSPS  
100 dBFS multitone SFDR  
IF sampling to 200 MHz  
Sampling jitter: 0.1 ps  
1.5 W power dissipation  
Differential analog inputs  
Pin compatible to AD6644  
Twos complement digital output format  
3.3 V CMOS compatible  
Designed for multichannel, multimode receivers, the AD6645 is  
part of the Analog Devices, Inc., SoftCell® transceiver chipset.  
The AD6645 maintains 100 dB multitone, spurious-free dynamic  
range (SFDR) through the second Nyquist band. This breakthrough  
performance eases the burden placed on multimode digital  
receivers (software radios) that are typically limited by the ADC.  
Noise performance is exceptional; typical signal-to-noise ratio  
(SNR) is 74.5 dB through the first Nyquist band.  
The AD6645 is built on the Analog Devices extra fast  
complementary bipolar (XFCB) process and uses an innovative,  
multipass circuit architecture. Units are available in thermally  
enhanced 52-lead PowerQuad 4 (LQFP_PQ4) and 52-lead  
exposed pad (TQFP_EP) packages specified from −40°C to  
+85°C at 80 MSPS and −10°C to +85°C at 105 MSPS.  
Data-ready for output latching  
APPLICATIONS  
Multichannel, multimode receivers  
Base station infrastructures  
AMPS, IS-136, CDMA, GSM, W-CDMA  
Single channel digital receivers  
Antenna array processing  
Communications instrumentation  
Radars, infrared imaging  
Instrumentation  
PRODUCT HIGHLIGHTS  
1. IF Sampling. The AD6645 maintains outstanding ac  
performance up to input frequencies of 200 MHz, suitable  
for multicarrier 3G wideband cellular IF sampling receivers.  
2. Pin Compatibility. The ADC has the same footprint and  
pin layout as the AD6644 14-bit, 40 MSPS/65 MSPS ADC.  
3. SFDR Performance and Oversampling. Multitone SFDR  
performance of 100 dBFS can reduce the requirements of  
high end RF components and allows the use of receive  
signal processors, such as the AD6620, AD6624/AD6624A,  
or AD6636.  
GENERAL DESCRIPTION  
The AD6645 is a high speed, high performance, monolithic 14-bit  
analog-to-digital converter (ADC). All necessary functions,  
including track-and-hold (T/H) and reference, are included on the  
chip to provide a complete conversion solution. The AD6645  
provides CMOS-compatible digital outputs. It is the fourth  
FUNCTIONAL BLOCK DIAGRAM  
AV  
DV  
CC  
CC  
AD6645  
AIN  
AIN  
A1  
TH1  
TH2  
A2  
TH3  
TH4  
TH5  
ADC3  
6
ADC1  
DAC1  
ADC2  
DAC2  
VREF  
2.4V  
5
5
ENCODE  
ENCODE  
INTERNAL  
TIMING  
DIGITAL ERROR CORRECTION LOGIC  
GND  
DMID OVR  
DRY  
D13  
MSB  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
LSB  
Figure 1.  
Rev. D  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rights of third parties that may result from its use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700 www.analog.com  
Fax: 781.461.3113 ©2002–2008 Analog Devices, Inc. All rights reserved.  
 
 

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