参数资料
| 型号： | AD7763BSVZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/33页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT SRL 625KSPS 64TQFP |
| 标准包装： | 1 |
| 位数： | 24 |
| 采样率（每秒）： | 625k |
| 数据接口： | 串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 955.5mW |
| 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： | 64-TQFP 裸露焊盘 |
| 供应商设备封装： | 64-TQFP-EP（10x10） |
| 包装： | 托盘 |
| 输入数目和类型： | 1 个差分，单极；1 个差分，双极 |
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24-Bit, 625 kSPS, 109 dB Sigma-Delta
ADC with On-Chip Buffers, Serial Interface
Data Sheet
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
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
2005–2014 Analog Devices, Inc. All rights reserved.
FEATURES
120 dB dynamic range at 78 kHz output data rate
109 dB dynamic range at 625 kHz output data rate
112 dB SNR at 78 kHz output data rate
107 dB SNR at 625 kHz output data rate
625 kHz maximum fully filtered output word rate
Programmable oversampling rate (32× to 256×)
Flexible serial interface
Fully differential modulator input
On-chip differential amplifier for signal buffering
Low-pass finite impulse response (FIR) filter with default
or user-programmable coefficients
Overrange alert bit
Digital offset and gain correction registers
Low power and power-down modes
Synchronization of multiple devices via SYNC pin
I2S interface mode
APPLICATIONS
Data acquisition systems
Vibration analysis
Instrumentation
FUNCTIONAL BLOCK DIAGRAM
05476-
00
1
AD7763
VIN+
VIN–
AVDD1
AGND
MCLK
DGND
VDRIVE
AVDD2
AVDD3
AVDD4
DVDD
DECAPA
RBIAS
DECAPB
MCLKGND
SYNC
RESET
SH2:0
ADR2:0
CDIV
I2
S
SC
P
SC
R
SDL
DRD
Y
SC
O
FSO
SD
O
SD
I
FS
I
CONTROL LOGIC
I/O
OFFSET AND GAIN
REGISTERS
DIFF
MULTIBIT
-
MODULATOR
RECONSTRUCTION
VREF+
REFGND
FIR FILTER
ENGINE
PROGRAMMABLE
DECIMATION
BUF
Figure 1.
GENERAL DESCRIPTION
The AD7763 high performance, 24-bit, Σ-Δ analog-to-digital
converter (ADC) combines wide input bandwidth and high
speed with the benefits of Σ-Δ conversion, as well as performance
of 107 dB SNR at 625 kSPS, making it ideal for high speed data
acquisition. A wide dynamic range, combined with significantly
reduced antialiasing requirements, simplifies the design process.
An integrated buffer to drive the reference, a differential ampli-
fier for signal buffering and level shifting, an overrange flag,
internal gain and offset registers, and a low-pass, digital FIR
filter make the AD7763 a compact, highly integrated data
acquisition device requiring minimal peripheral component
selection. In addition, the device offers programmable
decimation rates and a digital FIR filter, which can be user-
programmed to ensure that its characteristics are tailored for the
user’s application. The AD7763 is ideal for applications demanding
high SNR without necessitating the design of complex, front-
end signal processing.
The differential input is sampled at up to 40 MSPS by an analog
modulator. The modulator output is processed by a series of
low-pass filters, the final filter having default or user-programmable
coefficients. The sample rate, filter corner frequencies, and
output word rate are set by a combination of the external clock
frequency and the configuration registers of the AD7763.
The reference voltage supplied to the AD7763 determines the
analog input range. With a 4 V reference, the analog input range
is ±3.2 V differential-biased around a common mode of 2 V.
This common-mode biasing can be achieved using the on-chip
differential amplifiers, further reducing the external signal
conditioning requirements.
The AD7763 is available in an exposed paddle, 64-lead TQFP_EP
and is specified over the industrial temperature range from
40°C to +85°C.
Table 1. Related Devices
Part No.
Description
24-bit, 2.5 MSPS, 100 dB Σ-Δ, parallel interface
24-bit, 625 kSPS, 109 dB Σ-Δ, parallel interface
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PDF描述 |
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| AD7764BRUZ-REEL7 | IC ADC 24BIT S/D 312KSPS 28TSSOP |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7763BSVZ-REEL | 功能描述:IC ADC 24BIT S/D 625KSPS 64-TQFP 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 |
| AD7764 | 制造商:AD 制造商全称:Analog Devices 功能描述:24-Bit, 8.5 mW, 109 dB, 128/64/32 kSPS ADCs |
| AD7764_07 | 制造商:AD 制造商全称:Analog Devices 功能描述:24-Bit, 312 kSPS, 109 dB ヒ-ツ ADC with On-Chip Buffers and Serial Interface |
| AD7764BRUZ | 功能描述:IC ADC 24BIT S/D 312KSPS 28TSSOP 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 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 |
| AD7764BRUZ-REEL7 | 功能描述:IC ADC 24BIT S/D 312KSPS 28TSSOP 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 |
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