參數資料
| 型號： | AD7476ABRM |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/29頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 2.35V 1MSPS 8-MSOP |
| 設計資源： | Output Channel Monitoring Using AD5380 (CN0008) AD5382 Channel Monitor Function (CN0012) AD5381 Channel Monitor Function (CN0013) AD5383 Channel Monitor Function (CN0015) AD5390/91/92 Channel Monitor Function (CN0030) Power off protected data acquisition signal chain using ADG4612 , AD711, and AD7476 (CN0165) |
| 標準包裝： | 50 |
| 位數： | 12 |
| 采樣率（每秒）： | 1M |
| 數據接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 17.5mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應商設備封裝： | 8-MSOP |
| 包裝： | 管件 |
| 輸入數目和類型： | 1 個單端，單極 |
| 配用： | EVAL-AD7476ACBZ-ND - BOARD EVALUATION FOR AD7476A |
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2.35 V to 5.25 V, 1 MSPS,
12-/10-/8-Bit ADCs in 6-Lead SC70
AD7476A/AD7477A/AD7478A
Rev. F
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rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
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Tel: 781.329.4700
Fax: 781.461.3113
2002–2011 Analog Devices, Inc. All rights reserved.
FEATURES
Fast throughput rate: 1 MSPS
Specified for VDD of 2.35 V to 5.25 V
Low power
3.6 mW at 1 MSPS with 3 V supplies
12.5 mW at 1 MSPS with 5 V supplies
Wide input bandwidth
71 dB SNR at 100 kHz input frequency
Flexible power/serial clock speed management
No pipeline delays
High speed serial interface
SPI/QSPI/MICROWIRE/DSP compatible
Standby mode: 1 μA maximum
6-lead SC70 package
8-lead MSOP package
Qualified for automotive applications
APPLICATIONS
Battery-powered systems
Personal digital assistants
Medical instruments
Mobile communications
Instrumentation and control systems
Data acquisition systems
High speed modems
Optical sensors
FUNCTIONAL BLOCK DIAGRAM
12-/10-/8-BIT
SUCCESSIVE-
APPROXIMATION
ADC
CONTROL
LOGIC
AD7476A/AD7477A/AD7478A
GND
VDD
VIN
SCLK
SDATA
CS
T/H
02930-001
Figure 1.
GENERAL DESCRIPTION
The AD7476A/AD7477A/AD7478A are 12-bit, 10-bit, and 8-bit
high speed, low power, successive-approximation analog-to-
digital converters (ADCs), respectively. The parts operate from
a single 2.35 V to 5.25 V power supply and feature throughput
rates up to 1 MSPS. The parts contain a low noise, wide
bandwidth track-and-hold amplifier that can handle input
frequencies in excess of 13 MHz. The conversion process and
data acquisition are controlled using CS and the serial clock,
allowing the devices to interface with microprocessors or DSPs.
The input signal is sampled on the falling edge of CS, and the
conversion is also initiated at this point. There are no pipeline
delays associated with the parts. The AD7476A/AD7477A/
AD7478A use advanced design techniques to achieve low power
dissipation at high throughput rates. The reference for the part
is taken internally from VDD to allow the widest dynamic input
range to the ADC. Thus, the analog input range for the part is
0 V to VDD. The conversion rate is determined by the SCLK.
PRODUCT HIGHLIGHTS
1.
First 12-/10-/8-bit ADCs in a SC70 package.
2.
High throughput with low power consumption.
3.
Flexible power/serial clock speed management. The
conversion rate is determined by the serial clock, allowing
the conversion time to be reduced through the serial clock
speed increase. This allows the average power consumption
to be reduced when a power-down mode is used while not
converting. The parts also feature a power-down mode to
maximize power efficiency at lower throughput rates.
Current consumption is 1 μA maximum and 50 nA
typically when in power-down mode.
4.
Reference derived from the power supply.
5.
No pipeline delay. The parts feature a standard successive
approximation ADC with accurate control of the sampling
instant via a CS input and once-off conversion control.
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| AD7476ABRM-REEL | 功能描述:IC ADC 12BIT 1MSPS 8-MSOP T/R 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:16 采樣率（每秒）:45k 數據接口:串行 轉換器數目:2 功率耗散（最大）:315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端，單極 |
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