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參數資料
| 型號： | AD7657YSTZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/32頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 14BIT 6CH 250KSPS 64LQFP |
| 標準包裝： | 1,500 |
| 位數： | 14 |
| 采樣率（每秒）： | 250k |
| 數據接口： | 串行，并聯 |
| 轉換器數目： | 6 |
| 功率耗散（最大）： | 143mW |
| 電壓電源： | 模擬和數字，雙 ± |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-LQFP |
| 供應商設備封裝： | 64-LQFP（10x10） |
| 包裝： | 帶卷 (TR) |
| 輸入數目和類型： | 6 個單端，雙極 |
| 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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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7658 | 制造商:AD 制造商全稱:Analog Devices 功能描述:250 kSPS, 6-Channel,Simultaneous Sampling, Bipolar 12/14/16-Bit ADC |
| AD7658-1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:250 kSPS, 6-Channel, Simultaneous Sampling, Bipolar, 16-/14-/12-Bit ADC |
| AD7658BSTZ | 功能描述:IC ADC 12BIT 6CH 250KSPS 64LQFP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1 系列:microPOWER™ 位數:8 采樣率（每秒）:1M 數據接口:串行，SPI? 轉換器數目:1 功率耗散（最大）:- 電壓電源:模擬和數字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應商設備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數目和類型:8 個單端，單極 產品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| AD7658BSTZ-1 | 功能描述:IC ADC 12BIT 6CH 250KSPS 64LQFP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 其它有關文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數:12 采樣率（每秒）:20M 數據接口:并聯 轉換器數目:2 功率耗散（最大）:155mW 電壓電源:模擬和數字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應商設備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數目和類型:4 個單端，單極；2 個差分，單極 產品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD7658BSTZ-1-RL | 功能描述:IC ADC 12BIT 6CH 250KSPS 64LQFP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率（每秒）:300k 數據接口:并聯 轉換器數目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端，單極；1 個單端，雙極 |
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