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| 型号： | AD7689ACPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/32页 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT 250KSPS 8CH 20LFCSP |
| 产品培训模块： | Power Line Monitoring Motor Control |
| 产品变化通告： | Startup Circuitry Design Improvement Change 15/April/2009 |
| 标准包装： | 1 |
| 系列： | PulSAR® |
| 位数： | 16 |
| 采样率（每秒）： | 250k |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 21mW |
| 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： | 20-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 20-LFCSP-VQ |
| 包装： | 管件 |
| 输入数目和类型： | 8 个单端，单极；4 个差分，双极；4 个伪差分，双极 |
| 产品目录页面： | 778 (CN2011-ZH PDF) |
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16-Bit, 4-Channel/8-Channel,
250 kSPS PulSAR ADC
Data Sheet
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
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
www.analog.com
Fax: 781.461.3113
2008–2012 Analog Devices, Inc. All rights reserved.
FEATURES
16-bit resolution with no missing codes
4-channel (AD7682)/8-channel (AD7689) multiplexer with
choice of inputs
Unipolar single-ended
Differential (GND sense)
Pseudobipolar
Throughput: 250 kSPS
INL: ±0.4 LSB typical, ±1.5 LSB maximum (±23 ppm or FSR)
Dynamic range: 93.8 dB
SINAD: 92.5 dB at 20 kHz
THD: 100 dB at 20 kHz
Analog input range: 0 V to VREF with VREF up to VDD
Multiple reference types
Internal selectable 2.5 V or 4.096 V
External buffered (up to 4.096 V)
External (up to VDD)
Internal temperature sensor (TEMP)
Channel sequencer, selectable 1-pole filter, busy indicator
No pipeline delay, SAR architecture
Single-supply 2.3 V to 5.5 V operation with
1.8 V to 5.5 V logic interface
Serial interface compatible with SPI, MICROWIRE,
QSPI, and DSP
Power dissipation
3.5 mW @ 2.5 V/200 kSPS
12.5 mW @ 5 V/250 kSPS
Standby current: 50 nA
Low cost grade available
20-lead 4 mm × 4 mm LFCSP package
APPLICATIONS
Multichannel system monitoring
Battery-powered equipment
Medical instruments: ECG/EKG
Mobile communications: GPS
Power line monitoring
Data acquisition
Seismic data acquisition systems
Instrumentation
Process control
FUNCTIONAL BLOCK DIAGRAM
AD7689
REF
GND
VDD
VIO
DIN
SCK
SDO
CNV
1.8V
TO
VDD
2.3V TO 5.5V
SEQUENCER
SPI SERIAL
INTERFACE
MUX
16-BIT SAR
ADC
BAND GAP
REF
TEMP
SENSOR
REFIN
IN0
IN1
IN4
IN5
IN6
IN7
IN3
IN2
COM
0.5V TO VDD
10F
ONE-POLE
LPF
0.5V TO VDD – 0.5V
0.1F
07
35
3-
0
01
Figure 1.
Table 1. Multichannel 14-/16-Bit PulSAR ADC
Type
Channels
250 kSPS
500 kSPS
ADC Driver
14-Bit
16-Bit
4
16-Bit
8
GENERAL DESCRIPTION
redistribution successive approximation register (SAR) analog-
to-digital converters (ADCs) that operate from a single power
supply, VDD.
multichannel, low power data acquisition system, including a
true 16-bit SAR ADC with no missing codes; a 4-channel
that is useful for configuring the inputs as single-ended (with or
without ground sense), differential, or bipolar; an internal low
drift reference (selectable 2.5 V or 4.096 V) and buffer; a
temperature sensor; a selectable one-pole filter; and a sequencer
that is useful when channels are continuously scanned in order.
the configuration register and receiving conversion results. The
SPI interface uses a separate supply, VIO, which is set to the
host logic level. Power dissipation scales with throughput.
operation specified from 40°C to +85°C.
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| AD7689ACPZRL7 | 功能描述:IC ADC 16BIT 250KSPS 8CH 20LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:PulSAR® 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7689BCBZ-RL7 | 功能描述:16 Bit Analog to Digital Converter 8 Input 1 SAR 20-WLCSP (2.39x2.39) 制造商:analog devices inc. 系列:- 包装:剪切带（CT） 零件状态:有效 位数:16 采样率（每秒）:250k 输入数:8 输入类型:差分，个伪差分，单端 数据接口:SPI，DSP 配置:MUX-S/H-ADC 无线电 - S/H:ADC:1:1 A/D 转换器数:1 架构:SAR 参考类型:外部， 内部 电压 - 电源，模拟:2.3 V ~ 5.5 V 电压 - 电源，数字:1.8 V ~ 5.5 V 特性:温度传感器 工作温度:-40°C ~ 85°C 封装/外壳:20-UFBGA，WLCSP 供应商器件封装:20-WLCSP（2.39x2.39） 标准包装:1 |
| AD7689BCPZ | 功能描述:IC ADC 16BIT 250KSPS 8CH 20LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:PulSAR® 标准包装:1 系列:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6 |
| AD7689BCPZ | 制造商:Analog Devices 功能描述:IC ADC 16BIT 250KSPS LFCSP-20 |
| AD7689BCPZRL7 | 功能描述:IC ADC 16BIT 250KSPS 8CH 20LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:PulSAR® 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
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