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參數資料
| 型號： | AD7720BRUZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/16頁 |
| 文件大小： | 0K |
| 描述： | IC MODULATOR SIGMA-DELTA 28TSSOP |
| 標準包裝： | 2,500 |
| 位數： | 16 |
| 采樣率（每秒）： | 12.5M |
| 數據接口： | 并聯 |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 215mW |
| 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： | 28-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 28-TSSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數目和類型： | 1 個差分，單極；1 個差分，雙極 |
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Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
AD7720
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1997
CMOS Sigma-Delta Modulator
FUNCTIONAL BLOCK DIAGRAM
FEATURES
12.5 MHz Master Clock Frequency
0 V to +2.5 V or
1.25 V Input Range
Single Bit Output Stream
90 dB Dynamic Range
Power Supplies: AVDD, DVDD: +5 V
5%
On-Chip 2.5 V Voltage Reference
28-Lead TSSOP
GENERAL DESCRIPTION
This device is a 7th order sigma-delta modulator that converts
the analog input signal into a high speed 1-bit data stream. The
part operates from a +5 V supply and accepts a differential input
range of 0 V to +2.5 V or
±1.25 V centered about a common-
mode bias. The analog input is continuously sampled by the
analog modulator, eliminating the need for external sample and
hold circuitry. The input information is contained in the output
stream as a density of ones. The original information can be
reconstructed with an appropriate digital filter.
The part provides an accurate on-chip 2.5 V reference. A refer-
ence input/output function is provided to allow either the inter-
nal reference or an external system reference to be used as the
reference source for the part.
The device is offered in a 28-lead TSSOP package and designed
to operate from –40
°C to +85°C.
2.5V
REFERENCE
SIGMA-DELTA
MODULATOR
CLOCK
CIRCUITRY
CONTROL
LOGIC
AVDD
AGND
DVDD
DGND
REF1
REF2
DATA
SCLK
XTAL1/MCLK
XTAL2
DVAL
RESETO
RESET
VIN(+)
VIN(–)
MZERO
GC
BIP
STBY
AD7720
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相關代理商/技術參數 |
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| AD7720BRUZ-REEL7 | 功能描述:IC MODULATOR SIGMA-DELTA 28TSSOP 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 |
| AD7721 | 制造商:AD 制造商全稱:Analog Devices 功能描述:CMOS 16-Bit, 468.75 kHz, Sigma-Delta ADC |
| AD7721AN | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 468.75ksps 16-bit Parallel/Serial 28-Pin PDIP W |
| AD7721ANZ | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 468.75ksps 16-bit Parallel/Serial 28-Pin PDIP W |
| AD7721AR | 功能描述:IC ADC 16BIT SIGMA-DELTA 28-SOIC RoHS:否 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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