16½、250 kSPS、单极性/双极性
可编程输入PulSAR®ADC
AD7610
产品特性
多引脚/½件可编程输入范围：
5 V、10 V、±5 V、±10 V
输入范围/模式选择：引脚或串行SPI®兼容
吞吐速率：250
kSPS
16½分辨率、无失码
积分非线性(INL)：典型值±0.75
LSB，最大值±1.5 LSB(FSR的
±23 ppm)
信噪比(SNR)：94
dB(2 kHz)
iCMOS®工艺技术
5 V内部基准电压：典型漂移量为3 ppm/°C
片内温度传感器
无流水线延迟(SAR架构)
并行(16½或8½总线)和串行5
V/3.3 V接口
SPI-/QSPI™-/MICROWIRE™-/DSP兼容
功耗
90 mW @ 250 kSPS
10 mW @ 1 kSPS
48引脚LQFP和LFCSP(7 mm ×7 mm)封装
AGND
AVDD
PDREF
PDBUF
IN+
IN–
SWITCHED
CAP DAC
REF
功½框图
TEMP REFBUFIN REF REFGND VCC VEE DVDD
DGND
OVDD
REF
AMP
AD7610
SERIAL
DATAPORT
SERIAL
CONFIGURATION
PORT
16
OGND
D[15:0]
SER/PAR
BYTESWAP
CNVST
PD
RESET
CLOCK
CONTROL LOGIC AND
CALIBRATION CIRCUITRY
PARALLEL
INTERFACE
OB/2C
BUSY
RD
CS
06395-001
BIPOLAR
TEN
图1.
应用
过程控制
医疗仪器
高速数据采集
数字信号处理
仪器仪表
频谱分析
自动测试设备
概述
AD7610是一款16½电荷再分配逐次逼近型(SAR)架构模数
½换器(ADC)，采用ADI公司的
i
CMOS高电压工艺制造。
该器件的输入范围和工½模式可通过硬件或专用只写串行
配½端口来配½。AD7610内½一个16½高速采样ADC、
一个内部½换时钟、一个内部基准电压源(和缓冲)、纠错
电路，以及串行和并行系统接口端口。在CNVST的下降沿，
它对IN+和IN−之间的模拟输入电压差进行采样。AD7610
具有四种不同的模拟输入范围：0
V至5 V、0 V至10 V、±5 V和
±10 V。功耗与吞吐量呈线性比例关系。该器件提供无铅
48引脚薄型四方扁平封装(LQFP)和引脚架构芯片级封装
(LFCSP_VQ)两种½式。工½温度范围为−40°C至+85°C。
表1.
48引脚14/16/18½PulSAR的选择
类型
伪差分
100 kSPS至
250 kSPS
AD7651
AD7660
AD7661
AD7610
AD7663
AD7675
500 kSPS至
570 kSPS
AD7650
AD7652
AD7664
AD7666
AD7665
800 kSPS至
1000 kSPS
AD7653
AD7667
>1000
kSPS
真双极性
真差分
AD7676
AD7612
AD7671
AD7951
AD7677
18½,真差分
多通道/同步
AD7678
AD7679
AD7654
AD7655
AD7674
AD7621
AD7622
AD7623
AD7641
AD7643
R
ev.
A
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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. Speci cations subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
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Tel: 781.329.4700 ©2006–2012 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
ADI中文版数据手册是英文版数据手册的译文，敬请谅解翻译中可½存在的语言组织或翻译错误，ADI不对翻译中存在的差异或由此产生的错误负责。如需确认任½词语的准确性，请参考ADI提供
的最新英文版数据手册。
AD7610
目½
特性..................................................................................................
1
应用..................................................................................................
1
功½框图
......................................................................................... 1
概述..................................................................................................
1
修订历史
......................................................................................... 2
技术规格
......................................................................................... 3
时序规格....................................................................................
5
绝对最大额定值............................................................................
7
ESD警告..................................................................................... 7
引脚配½和功½描述
................................................................... 8
典型性½参数
.............................................................................. 11
术语................................................................................................
15
工½原理
....................................................................................... 16
概述
.......................................................................................... 16
½换器操½
............................................................................. 16
传递½数..................................................................................
17
典型连接图
............................................................................. 18
模拟输入..................................................................................
19
基准电压输入/输出...............................................................
20
电源
.......................................................................................... 21
½换控制..................................................................................
22
接口................................................................................................
23
数字接口..................................................................................
23
并行接口..................................................................................
23
串行接口..................................................................................
24
主机串行接口
......................................................................... 24
从机串行接口
......................................................................... 26
硬件配½..................................................................................
28
½件配½..................................................................................
28
微处理器接口
......................................................................... 29
应用信息
....................................................................................... 30
布局指南..................................................................................
30
评估性½..................................................................................
30
外½尺寸
....................................................................................... 31
订购指南..................................................................................
31
修订历史
2012年12月—修订版0至修订版A
增加裸露焊盘注释
....................................................................... 8
更改“电源时序”部分..................................................................
23
更新“外½尺寸”...........................................................................
31
更改“订购指南”...........................................................................
31
2006年10月—修订版0：初始版
Rev. A | Page 2 of 32
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