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| 型號： | AD7767BRUZ-2 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/25頁 |
| 文件大?。?/td> | 0K |
| 描述： | ADC 24BIT 32KSPS SAR 16-TSSOP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 位數(shù)： | 24 |
| 采樣率（每秒）： | 32k |
| 數(shù)據(jù)接口： | 串行 |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 18mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-TSSOP |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 1 個差分，單極 |
| 產(chǎn)品目錄頁面： | 779 (CN2011-ZH PDF) |
| 配用： | EVAL-AD7767EDZ-ND - BOARD EVAL AD7767 128KSPS 108DB EVAL-AD7767-1EDZ-ND - BOARD EVAL AD7767-1 64KSPS 111DB |
24-Bit, 8.5 mW, 109 dB,
128 kSPS/64 kSPS/32 kSPS ADCs
AD7767
Rev. C
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
www.analog.com
Fax: 781.461.3113
2007–2010 Analog Devices, Inc. All rights reserved.
FEATURES
Oversampled successive approximation (SAR) architecture
High performance ac and dc accuracy, low power
115.5 dB dynamic range, 32 kSPS (AD7767-2)
112.5 dB dynamic range, 64 kSPS (AD7767-1)
109.5 dB dynamic range, 128 kSPS (AD7767)
118 dB THD
Exceptionally low power
8.5 mW, 32 kSPS (AD7767-2)
10.5 mW, 64 kSPS (AD7767-1)
15 mW, 128 kSPS (AD7767)
High dc accuracy
24 bits, no missing codes (NMC)
INL: ±3 ppm (typical), ±7.6 ppm (maximum)
Low temperature drift
Zero error drift: 15 nV/°C
Gain error drift: 0.4 ppm/°C
On-chip low-pass FIR filter
Linear phase response
Pass-band ripple: ±0.005 dB
Stop-band attenuation: 100 dB
2.5 V supply with 1.8 V/2.5 V/3 V/3.6 V logic interface options
Flexible interfacing options
Synchronization of multiple devices
Daisy-chain capability
Power-down function
Temperature range: 40°C to +105°C
APPLICATIONS
Low power PCI/USB data acquisition systems
Low power wireless acquisition systems
Vibration analysis
Instrumentation
High precision medical acquisition
FUNCTIONAL BLOCK DIAGRAM
VREF+
VIN+
VIN–
REFGND
AVDD AGND MCLK
DVDD VDRIVE DGND
SUCCESSIVE
APPROXIMATION
ADC
DIGITAL
FIR FILTER
SERIAL INTERFACE
AND
CONTROL LOGIC
SCLK DRDY SDO
SDI
AD7767/
AD7767-1/
AD7767-2
CS
SYNC/PD
06
85
9-
00
1
Figure 1.
GENERAL DESCRIPTION
The AD7767/AD7767-1/AD7767-2 are high performance,
24-bit, oversampled SAR analog-to-digital converters (ADCs).
The AD7767/AD7767-1/AD7767-2 combine the benefits of a
large dynamic range and input bandwidth, consuming 15 mW,
10.5 mW, and 8.5 mW power, respectively, and are contained in
a 16-lead TSSOP package.
Ideal for ultralow power data acquisition (such as PCI- and
USB-based systems), the AD7767/AD7767-1/AD7767-2
provide 24-bit resolution. The combination of exceptional SNR,
wide dynamic range, and outstanding dc accuracy make the
AD7767/AD7767-1/AD7767-2 ideally suited for measuring
small signal changes over a wide dynamic range. This is
particularly suitable for applications where small changes on the
input are measured on larger ac or dc signals. In such an
application, the AD7767/AD7767-1/AD7767-2 accurately
gather both ac and dc information.
The AD7767/AD7767-1/AD7767-2 include an on-board digital
filter (complete with linear phase response) that acts to elimi-
nate out-of-band noise by filtering the oversampled input
voltage. The oversampled architecture also reduces front-end
antialias requirements. Other features of the AD7767 include a
SYNC/PD (synchronization/power-down) pin, allowing the
synchronization of multiple AD7767 devices. The addition of
an SDI pin provides the option of daisy chaining multiple
AD7767 devices.
The AD7767/AD7767-1/AD7767-2 operate from a 2.5 V supply
using a 5 V reference. The devices operate from 40°C to +105°C.
RELATED DEVICES
Table 1. 24-Bit ADCs
Part No.
Description
amp and reference buffer, parallel, variable decimation
625 kSPS, 109 dB dynamic range,1 on-board differential
amp and reference buffer, parallel/serial, variable
decimation
312 kSPS, 109 dB dynamic range,1 on-board differential
amp and reference buffer, variable decimation (pin)
156 kSPS, 112 dB dynamic range,1 on-board differential
amp and reference buffer, variable decimation (pin)
128 kSPS, 109.5 dB,1 15 mW, 16-bit INL, serial interface
64 kSPS 112.5 dB,110.5 mW, 16-bit INL, serial interface
32 kSPS, 115.5 dB,1 8.5 mW, 16-bit INL, serial interface
1 Dynamic range at maximum output data rate.
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| AD7767BRUZ-2-RL7 | 功能描述:ADC 24BIT 8.5MW 32KSPS 16TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)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(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7767BRUZ-RL7 | 功能描述:ADC 24BIT 15MW 128KSPS 16TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)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(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7768-4BSTZ | 功能描述:24 Bit Analog to Digital Converter 4 Input 4 Sigma-Delta 64-LQFP (10x10) 制造商:analog devices inc. 系列:- 包裝:托盤 零件狀態(tài):有效 位數(shù):24 采樣率（每秒）:256k 輸入數(shù):4 輸入類型:差分 數(shù)據(jù)接口:SPI 配置:ADC 無線電 - S/H:ADC:- A/D 轉(zhuǎn)換器數(shù):4 架構(gòu):三角積分 參考類型:外部 電壓 - 電源，模擬:2 V ~ 5.5 V 電壓 - 電源，數(shù)字:- 特性:同步采樣 工作溫度:-40°C ~ 150°C 封裝/外殼:64-LQFP 供應(yīng)商器件封裝:64-LQFP（10x10） 標(biāo)準(zhǔn)包裝:1 |
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