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參數(shù)資料
| 型號： | AD7899ARZ-2REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 14BIT 400KSPS 5V 28SOIC |
| 標準包裝： | 1,000 |
| 位數(shù)： | 14 |
| 采樣率（每秒）： | 400k |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉換器數(shù)目： | 1 |
| 功率耗散（最大）： | 125mW |
| 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： | 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(shù)目和類型： | 1 個差分，單極 |
| 配用： | EVAL-AD7899CBZ-ND - BOARD EVAL FOR AD7899 |
REV. 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.
a
AD7899
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2001
5 V Single Supply
14-Bit 400 kSPS ADC
FUNCTIONAL BLOCK DIAGRAM
TRACK/HOLD
AVDD
VREF
BUSY/
EOC
CLKIN
RD
CS
AD7899
VINB
VINA
+
–
14-BIT
ADC
OUTPUT
LATCH
DB0
DB13
CONVERSION
CONTROL
LOGIC
INT/EXT
CLOCK
SELECT
INT
CLOCK
SIGNAL
SCALING
2.5V
REFERENCE
6k
VDRIVE
CONVST
OPGND
GND
STBY
FEATURES
Fast (2.2
s) 14-Bit ADC
400 kSPS Throughput Rate
0.3
s Track/Hold Acquisition Time
Single Supply Operation
Selection of Input Ranges:
10 V,
5 V and
2.5 V
0 V to 2.5 V and 0 V to 5 V
High-Speed Parallel Interface which Also Allows
Interfacing to 3 V Processors
Low Power, 80 mW Typ
Power-Saving Mode, 20
W Typ
Overvoltage Protection on Analog Inputs
Power-Down Mode via STBY Pin
GENERAL DESCRIPTION
The AD7899 is a fast, low-power, 14-bit A/D converter that
operates from a single 5 V supply. The part contains a 2.2
s
successive-approximation ADC, a track/hold amplifier, 2.5 V
reference, on-chip clock oscillator, signal conditioning circuitry,
and a high-speed parallel interface. The part accepts analog input
ranges of
±10 V, ±5 V, ±2.5 V, 0 V to 2.5 V, and 0 V to 5 V.
Overvoltage protection on the analog input for the part allows
the input voltage to be exceeded without damaging the parts.
Speed of conversion can be controlled either by an internally
trimmed clock oscillator or by an external clock.
A conversion start signal (
CONVST) places the track/hold into
hold mode and initiates conversion. The BUSY/
EOC signal
indicates the end of the conversion.
Data is read from the part via a 14-bit parallel data bus using the
standard
CS and RD signals. Maximum throughput for the
AD7899 is 400 kSPS.
The AD7899 is available in a 28-lead SOIC and SSOP packages.
PRODUCT HIGHLIGHTS
1. The AD7899 features a fast (2.2
s) ADC allowing through-
put rates of up to 400 kSPS.
2. The AD7899 operates from a single 5 V supply and con-
sumes only 80 mW typ making it ideal for low power and
portable applications.
3. The part offers a high-speed parallel interface. The interface
can operate in 3 V and 5 V mode allowing for easy connec-
tion to 3 V or 5 V microprocessors, microcontrollers, and
digital signal processors.
4. The part is offered in three versions with different analog
input ranges. The AD7899-1 offers the standard industrial
ranges of
±10 V and ±5 V; the AD7899-2 offers a unipolar
range of 0 V to 2.5 or 0 V to 5 V, and the AD7899-3 has an
input range of
±2.5 V.
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| AD7899ARZ-3 | 功能描述:IC ADC 14BIT 400KSPS 5V 28SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝: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） 供應商設備封裝: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 |
| AD7899BR-1 | 功能描述:IC ADC 14BIT 400KSPS 5V 28-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應商設備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個單端，雙極 |
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| AD7899BR-1REEL7 | 功能描述:IC ADC 14BIT 400KSPS 5V 28-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數(shù):12 采樣率（每秒）:3M 數(shù)據(jù)接口:- 轉換器數(shù)目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:- |
| AD7899BR-3 | 制造商:Rochester Electronics LLC 功能描述:14-BIT BIPOLAR INPUT SINGLE SUPPLY ADC - Bulk 制造商:Analog Devices 功能描述: |
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