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AD7265BCPZ-REEL7 PDF预览

AD7265BCPZ-REEL7

更新时间: 2024-02-19 22:15:22
品牌 Logo 应用领域
亚德诺 - ADI 转换器模数转换器
页数 文件大小 规格书
28页 690K
描述
Differential/Single-Ended Input, Dual 1 MSPS, 12-Bit, 3-Channel SAR ADC

AD7265BCPZ-REEL7 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:QFN
包装说明:HVQCCN, LCC32,.2SQ,20针数:32
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:1.78
最大模拟输入电压:5.25 V最小模拟输入电压:
最长转换时间:0.875 µs转换器类型:ADC, SUCCESSIVE APPROXIMATION
JESD-30 代码:S-XQCC-N32JESD-609代码:e3
长度:5 mm最大线性误差 (EL):0.0244%
湿度敏感等级:3模拟输入通道数量:3
位数:12功能数量:2
端子数量:32最高工作温度:125 °C
最低工作温度:-40 °C输出位码:BINARY, 2'S COMPLEMENT BINARY
输出格式:SERIAL封装主体材料:UNSPECIFIED
封装代码:HVQCCN封装等效代码:LCC32,.2SQ,20
封装形状:SQUARE封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):260电源:3/5 V
认证状态:Not Qualified采样速率:1 MHz
采样并保持/跟踪并保持:TRACK座面最大高度:1 mm
子类别:Analog to Digital Converters标称供电电压:3 V
表面贴装:YES温度等级:AUTOMOTIVE
端子面层:MATTE TIN端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
处于峰值回流温度下的最长时间:40宽度:5 mm
Base Number Matches:1

AD7265BCPZ-REEL7 数据手册

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Differential/Single-Ended Input, Dual  
1 MSPS, 12-Bit, 3-Channel SAR ADC  
AD7265  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
REF SELECT  
D
A
AV  
DV  
CAP  
DD  
DD  
Dual 12-bit, 3-channel ADC  
Throughput rate: 1 MSPS  
BUF  
T/H  
REF  
Specified for VDD of 2.7 V to 5.25 V  
Power consumption  
AD7265  
V
V
A1  
A2  
7 mW at 1 MSPS with 3 V supplies  
17 mW at 1 MSPS with 5 V supplies  
Pin-configurable analog inputs  
12-channel single-ended inputs  
6-channel fully differential inputs  
6-channel pseudo differential inputs  
70 dB SINAD at 50 kHz input frequency  
Accurate on-chip reference: 2.5 V  
0.2ꢀ maximum @ 25°C, 20 ppm/°C maximum  
Dual conversion with read 875 ns, 16 MHz SCLK  
High speed serial interface  
SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible  
−40°C to +125°C operation  
Shutdown mode: 1 μA maximum  
32-lead LFCSP and 32-lead TQFP  
2 MSPS version, AD7266  
12-BIT  
V
V
A3  
A4  
SUCCESSIVE  
APPROXIMATION  
ADC  
OUTPUT  
DRIVERS  
MUX  
D
A
OUT  
V
V
A5  
A6  
SCLK  
CS  
RANGE  
SGL/DIFF  
A0  
CONTROL  
LOGIC  
A1  
A2  
V
V
B1  
B2  
V
DRIVE  
V
V
B3  
B4  
MUX  
12-BIT  
SUCCESSIVE  
APPROXIMATION  
ADC  
OUTPUT  
DRIVERS  
D
B
OUT  
T/H  
V
V
B5  
B6  
BUF  
AGND AGND AGND  
D
B
DGND  
DGND  
CAP  
GENERAL DESCRIPTION  
Figure 1.  
The AD72651 is a dual, 12-bit, high speed, low power, successive  
approximation ADC that operates from a single 2.7 V to 5.25 V  
power supply and features throughput rates of up to 1 MSPS. The  
device contains two ADCs, each preceded by a 3-channel  
multiplexer, and a low noise, wide bandwidth track-and-hold  
amplifier that can handle input frequencies in excess of 30 MHz.  
PRODUCT HIGHLIGHTS  
1. Two Complete ADC Functions Allow Simultaneous  
Sampling and Conversion of Two Channels.  
Each ADC has three fully/pseudo differential pairs, or six  
single-ended channels, as programmed. The conversion  
result of both channels is simultaneously available on  
separate data lines, or in succession on one data line if only  
one serial port is available.  
The conversion process and data acquisition use standard  
control inputs allowing easy interfacing to microprocessors or  
DSPs. The input signal is sampled on the falling edge of  
CS  
;
conversion is also initiated at this point. The conversion time is  
determined by the SCLK frequency. The AD7265 uses advanced  
design techniques to achieve very low power dissipation at high  
throughput rates. With 5 V supplies and a 1 MSPS throughput rate,  
the part consumes 4 mA maximum. The part also offers flexible  
power/throughput rate management when operating in normal  
mode, because the quiescent current consumption is so low.  
2. High Throughput with Low Power Consumption.  
The AD7265 offers a 1 MSPS throughput rate with 9 mW  
maximum power dissipation when operating at 3 V.  
3. The AD7265 offers both a standard 0 V to VREF input range  
and a 2 × VREF input range.  
4. No Pipeline Delay.  
The part features two standard successive approximation  
ADCs with accurate control of the sampling instant via a  
input and once off conversion control.  
The analog input range for the part can be selected to be a 0 V  
to VREF (or 2 × VREF) range, with either straight binary or twos  
complement output coding. The AD7265 has an on-chip 2.5 V  
reference that can be overdriven when an external reference is  
preferred. This external reference range is 100 mV to VDD. The  
AD7265 is available in 32-lead LFCSP and 32-lead TQFP.  
CS  
1 Protected by U.S. Patent No. 6,681,332.  
Rev. A  
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  
Fax: 781.461.3113  
www.analog.com  
©2006 Analog Devices, Inc. All rights reserved.  
 
 

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