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| 型号： | AD7657BSTZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/32页 |
| 文件大小： | 0K |
| 描述： | IC ADC 14BIT 6CH 250KSPS 64-LQFP |
| 标准包装： | 1,500 |
| 位数： | 14 |
| 采样率（每秒）： | 250k |
| 数据接口： | 串行，并联 |
| 转换器数目： | 6 |
| 功率耗散（最大）： | 143mW |
| 电压电源： | 模拟和数字，双 ± |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-LQFP |
| 供应商设备封装： | 64-LQFP（10x10） |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 6 个单端，双极 |
| 配用： | EVAL-AD7657-1EDZ-ND - BOARD EVAL CONTROL AD7657-1 EVAL-AD7657CBZ-ND - BOARD EVAL FOR AD7657 |
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250 kSPS, 6-Channel, Simultaneous
Sampling, Bipolar 16-/14-/12-Bit ADC
Data Sheet
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2006–2012 Analog Devices, Inc. All rights reserved.
FEATURES
6 independent ADCs
True bipolar analog inputs
Pin-/software-selectable ranges: ±10 V, ±5 V
Fast throughput rate: 250 kSPS
i
CMOS process technology
Low power
140 mW at 250 kSPS with 5 V supplies
Wide input bandwidth
86.5 dB SNR at 50 kHz input frequency
On-chip reference and reference buffers
Parallel, serial, and daisy-chain interface modes
High speed serial interface
SPI-/QSPI-/MICROWIRE-/DSP-compatible
Standby mode: 100 W maximum
64-lead LQFP
APPLICATIONS
Power line monitoring systems
Instrumentation and control systems
Multi-axis positioning systems
FUNCTIONAL BLOCK DIAGRAM
VSS
DGND
VDD
REF
CONVST A
CONVST B CONVST C
OUTPUT
DRIVERS
OUTPUT
DRIVERS
OUTPUT
DRIVERS
OUTPUT
DRIVERS
CONTROL
LOGIC
BUF
AGND
T/H
CLK
OSC
AVCC
DVCC
V1
V2
V3
V4
V5
V6
SER/PAR
CS
VDRIVE
STBY
DOUT A
DOUT B
DOUT C
SCLK
RD
WR
DATA/
CONTROL
LINES
05020-
001
AD7656/AD7657/AD7658
16-/14-/12-BIT SAR
Figure 1.
GENERAL DESCRIPTION
The AD7656/AD7657/AD76581 contain six 16-/14-/12-bit,
fast, low power, successive approximation ADCs all in the one
package that is designed on the iCMOS process (industrial
CMOS). iCMOS is a process combining high voltage silicon
with submicron CMOS and complementary bipolar technol-
ogies. It enables the development of a wide range of high
performance analog ICs, capable of 33 V operation in a
footprint that no previous generation of high voltage parts
could achieve. Unlike analog ICs using conventional CMOS
processes, iCMOS components can accept bipolar input signals
while providing increased performance, which dramatically
reduces power consumption and package size.
The AD7656/AD7657/AD7658 feature throughput rates up
to 250 kSPS. The parts contain low noise, wide bandwidth,
track-and-hold amplifiers that can handle input frequencies
up to 12 MHz.
The conversion process and data acquisition are controlled
using CONVST signals and an internal oscillator. Three
CONVST pins allow independent, simultaneous sampling of
the three ADC pairs. The AD7656/AD7657/AD7658 all have
a high speed parallel and serial interface, allowing the devices
to interface with microprocessors or DSPs. In serial interface
mode, the parts have a daisy-chain feature that allows multiple
ADCs to connect to a single serial interface. The AD7656/
AD7657/AD7658 can accommodate true bipolar input signals
in the ±4 × VREF range and ±2 × VREF range. The AD7656/
AD7657/AD7658 also contain an on-chip 2.5 V reference.
PRODUCT HIGHLIGHTS
1. Six 16-/14-/12-bit, 250 kSPS ADCs on board.
2. Six true bipolar, high impedance analog inputs.
3. Parallel and high speed serial interfaces.
1
Protected by U.S. Patent No. 6,731,232.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7657YSTZ | 功能描述:IC ADC 14BIT 6CH 250KSPS 64LQFP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 其它有关文件:TSA1204 View All Specifications 标准包装:1 系列:- 位数:12 采样率（每秒）:20M 数据接口:并联 转换器数目:2 功率耗散（最大）:155mW 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-TQFP 供应商设备封装:48-TQFP（7x7） 包装:Digi-Reel® 输入数目和类型:4 个单端，单极；2 个差分，单极 产品目录页面:1156 (CN2011-ZH PDF) 其它名称:497-5435-6 |
| AD7657YSTZ-1 | 功能描述:IC ADC 14BIT 6CH 250KSPS 64LQFP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD7657YSTZ-1-RL | 功能描述:IC ADC 14BIT 6CH 250KSPS 64LQFP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD7657YSTZ-REEL | 功能描述:IC ADC 14BIT 6CH 250KSPS 64LQFP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD7658 | 制造商:AD 制造商全称:Analog Devices 功能描述:250 kSPS, 6-Channel,Simultaneous Sampling, Bipolar 12/14/16-Bit ADC |
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