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參數資料
| 型號： | AD7880 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Enclosed Switches Series LS: Rod - Adjustable; 1NC 1NO DPDT Snap Action, Double Break; 0.5 in - 14NPT conduit; Plug-in |
| 中文描述： | LC2MOS單5伏電源，低功耗，12位采樣ADC |
| 文件頁數： | 1/16頁 |
| 文件大小： | 337K |
| 代理商： | AD7880 |
REV. 0
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
LC
2
MOS Single +5 V Supply
LowPower, 12-Bit Sampling ADC
AD7880
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
FUNCT IONAL BLOCK DIAGRAM
+
–
R
R
SAMPLING
COMPARATOR
CONTROL
LOGIC
SAR +
COUNTER
CLKIN
CS
CONVST
RD
BUSY
MODE
V
DD
LOW POWER
CONTROL
CIRCUIT
V
INA
V
INB
V
REF
AGND
DGND
DB0
DB11
12-BIT DAC
AD7880
THREE
STATE
BUFFERS
FEATURES
12-Bit Monolithic A/D Converter
66 kHz Throughput Rate
12
m
s Conversion Time
3
m
s On-Chip Track/Hold Amplifier
Low Power
Power Save Mode: 2 mW typ
Normal Operation: 25 mW typ
70 dB SNR
Fast Data Access Time: 57 ns
Small 24-Lead SOIC and 0.3" DIP Packages
APPLICATIONS
Battery Powered Portable Systems
Digital Signal Processing
Speech Recognition and Synthesis
High Speed Modems
Control and Instrumentation
GE NE RAL DE SCRIPT ION
T he AD7880 is a high speed, low power, 12-bit A/D converter
which operates from a single +5 V supply. It consists of a 3
μ
s
track/hold amplifier, a 12
μ
s successive-approximation ADC,
versatile interface logic and a multiple-input-range circuit. T he
part also includes a power save feature.
An internal resistor network allows the part to accept both uni-
polar and bipolar input signals while operating from a single
+5 V supply. Fast bus access times and standard control inputs
ensure easy interfacing to modern microprocessors and digital
signal processors.
T he AD7880 features a total throughput time of 15
μ
s and can
convert full power signals up to 33 kHz with a sampling fre-
quency of 66 kHz.
In addition to the traditional dc accuracy specifications such as
linearity, full-scale and offset errors, the AD7880 is also fully
specified for dynamic performance parameters including har-
monic distortion and signal-to-noise ratio.
T he AD7880 is fabricated in Analog Devices’ Linear Compat-
ible CMOS (LC
2
MOS) process, a mixed technology process
that combines precision bipolar circuits with low power CMOS
logic. T he part is available in a 24-pin, 0.3 inch-wide, plastic or
hermetic dual-in-line package (DIP) as well as a small 24-lead
SOIC package.
PRODUCT HIGHLIGHT S
1. Fast Conversion T ime.
12
μ
s conversion time and 3
μ
s acquisition time allow for
large input signal bandwidth. T his performance is ideally
suited for applications in areas such as telecommunications,
audio, sonar and radar signal processing.
2. Low Power Consumption.
2 mW power consumption in the power-down mode makes
the part ideally suited for portable, hand held, battery pow-
ered applications.
3. Multiple Input Ranges.
T he part features three user-determined input ranges, 0 V to
+5 V, 0 V to 10 V and
±
5 V. T hese unipolar and bipolar
ranges are achieved with a 5 V only power supply.
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| AD7880CR | LC2MOS Single +5 V Supply, Low Power, 12-Bit Sampling ADC |
| AD7880BN | LC2MOS Single +5 V Supply, Low Power, 12-Bit Sampling ADC |
| AD7880BQ | LC2MOS Single +5 V Supply, Low Power, 12-Bit Sampling ADC |
| AD7880BR | LC2MOS Single +5 V Supply, Low Power, 12-Bit Sampling ADC |
| AD7880CN | LC2MOS Single +5 V Supply, Low Power, 12-Bit Sampling ADC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7880BCHIPS | 功能描述:12 Bit Analog to Digital Converter 2 Input 1 SAR Die 制造商:analog devices inc. 系列:- 包裝:管件 零件狀態:上次購買時間 位數:12 采樣率（每秒）:66k 輸入數:2 輸入類型:單端 數據接口:并聯 配置:S/H-ADC 無線電 - S/H:ADC:1:1 A/D 轉換器數:1 架構:SAR 參考類型:外部，電源 電壓 - 電源，模擬:5V 電壓 - 電源，數字:5V 特性:- 工作溫度:-40°C ~ 85°C 封裝/外殼:模具 供應商器件封裝:模具 標準包裝:1 |
| AD7880BN | 功能描述:IC ADC 12BIT MONO LP 24-DIP 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 系列:- 位數:14 采樣率（每秒）:83k 數據接口:串行，并聯 轉換器數目: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 輸入數目和類型:1 個單端，雙極 |
| AD7880BNZ | 功能描述:IC ADC 12BIT MONO LOW PWR 24DIP 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 |
| AD7880BQ | 制造商:Analog Devices 功能描述:ADC Single SAR 66ksps 12-bit Parallel 24-Pin CDIP 制造商:Analog Devices 功能描述:ADC SGL SAR 66KSPS 12-BIT PARALLEL 24CDIP - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD7880BR | 功能描述:IC ADC 12BIT LC2MOS 5V LP 24SOIC 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 系列:- 位數:14 采樣率（每秒）:83k 數據接口:串行，并聯 轉換器數目: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 輸入數目和類型:1 個單端，雙極 |
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