參數資料
| 型號： | AD7450BRMZ |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/22頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT DIFF IN 1MSPS 8MSOP |
| 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）： | 9.25mW |
| 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 個差分，單極 |
| 配用： | EVAL-AD7450CBZ-ND - BOARD EVALUATION FOR AD7450 |
a
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 that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Analog Devices, Inc., 2002
AD7450
Differential Input, 1 MSPS
12-Bit ADC in SOIC-8 and SO-8
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corporation.
FEATURES
Fast Throughput Rate: 1 MSPS
Specified for VDD of 3 V and 5 V
Low Power at Max Throughput Rate:
3.75 mW Max at 833 kSPS with 3 V Supplies
9 mW Max at 1 MSPS with 5 V Supplies
Fully Differential Analog Input
Wide Input Bandwidth:
70 dB SINAD at 300 kHz Input Frequency
Flexible Power/Serial Clock Speed Management
No Pipeline Delays
High-Speed Serial Interface—SPITM/QSPITM
MICROWIRETM/DSP Compatible
Power-Down Mode: 1
A Max
8-Lead
SOIC and SOIC Packages
APPLICATIONS
Transducer Interface
Battery-Powered Systems
Data Acquisition Systems
Portable Instrumentation
Motor Control
Communications
FUNCTIONAL BLOCK DIAGRAM
12-BIT SUCCESSIVE
APPROXIMATION
ADC
CONTROL
LOGIC
AD7450
VIN+
SCLK
CS
SDATA
VIN–
VREF
GND
VDD
T/H
GENERAL DESCRIPTION
The AD7450 is a 12-bit, high-speed, low power, successive
approximation (SAR) analog-to-digital converter that features a
fully differential analog input. It operates from a single 3 V or 5 V
power supply and features throughput rates up to 833 kSPS or
1 MSPS, respectively.
This part contains a low noise, wide bandwidth, differential track-
and-hold amplifier (T/H) that can handle input frequencies in
excess of 1 MHz with the –3 dB point typically being 20 MHz.
The reference voltage for the AD7450 is applied externally to the
VREF pin and can be varied from 100 mV to 3.5 V, depending
on the power supply and what suits the application. The value of
the reference voltage determines the common-mode voltage
range of the part. With this truly differential input structure and
variable reference input, the user can select a variety of input
ranges and bias points.
The conversion and data acquisition processes are controlled
using
CS and the serial clock, allowing the device to interface
with microprocessors or DSPs. The input signals are sampled
on the falling edge of
CS, and the conversion is also initiated at
this point.
The SAR architecture of this part ensures that there are no
pipeline delays.
The AD7450 uses advanced design techniques to achieve low
power dissipation at high throughput rates.
PRODUCT HIGHLIGHTS
1. Operation with either 3 V or 5 V power supplies.
2. High throughput with low power consumption. With a 3 V
supply, the AD7450 offers 3.75 mW max power consumption
for 833 kSPS throughput.
3. Fully differential analog input.
4. Flexible power/serial clock speed management. The conversion
rate is determined by the serial clock, allowing the power
to be reduced as the conversion time is reduced through
the serial clock speed increase. This part also features a
shutdown mode to maximize power efficiency at lower
throughput rates.
5. Variable voltage reference input.
6. No pipeline delay.
7. Accurate control of the sampling instant via a
CS input and
once-off conversion control.
8. ENOB > 8 bits typically with 100 mV reference.
Rev. A
Fax: 781/461/3113
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7450BR-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 12-bit Serial 8-Pin SOIC N T/R 制造商:Rochester Electronics LLC 功能描述:3V/5V DIFFERENTIAL INPUT 12 BIT SAR IC - Tape and Reel |
| AD7450BR-REEL7 | 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 12-bit Serial 8-Pin SOIC N T/R 制造商:Rochester Electronics LLC 功能描述:3V/5V DIFFERENTIAL INPUT 12BIT SAR IC - Tape and Reel |
| AD7450BRZ | 功能描述:IC ADC 12BIT DIFF IN 1MSPS 8SOIC RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 其它有關文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數:12 采樣率（每秒）:20M 數據接口:并聯 轉換器數目:2 功率耗散（最大）:155mW 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:48-TQFP 供應商設備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數目和類型:4 個單端，單極；2 個差分，單極 產品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD7451 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Pseudo Differential, 1MSPS, 12- & 10-Bit ADCs in 8-lead SOT-23 |
| AD7451ARM | 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 12-bit Serial 8-Pin MSOP 制造商:Rochester Electronics LLC 功能描述:12BIT PSDO DIFF I/PUT,1MSPS SAR ADC I.C. - Bulk 制造商:Analog Devices 功能描述:12BIT SAR ADC DIFF I/P SMD 7451 |
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