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參數(shù)資料
| 型號(hào)： | AD7899AR-1 |
| 英文描述： | Analog-to-Digital Converter， 14-Bit |
| 中文描述： | 模擬到數(shù)字轉(zhuǎn)換器，14位 |
| 文件頁數(shù)： | 19/20頁 |
| 文件大?。?/td> | 191K |
| 代理商： | AD7899AR-1 |
REV. B
AD7890
–19–
INPUT FREQUENCY
–
kHz
0
E
12.0
11.5
11.0
10.5
10.0
20
40
Figure 21. Effective Number of Bits vs. Frequency
Effective Number of Bits
The formula for Signal to (Noise + Distortion) Ratio (See Ter-
minology section) is related to the resolution or number of bits
in the converter. Rewriting the formula, below, gives a measure
of performance expressed in effective number of bits (N):
N = (SNR —
1.76)/6.02
where
SNR
is Signal to (Noise + Distortion) Ratio
The effective number of bits for a device can be calculated
from its measured Signal to (Noise + Distortion) Ratio. Fig-
ure 21 shows a typical plot of effective number of bits versus
frequency for the AD7890-2 from dc to 40 kHz. The sampling
frequency is 102.4 kHz. The plot shows that the AD7890 con-
verts an input sine wave of 40 kHz to an effective numbers of
bits of 11 which equates to a Signal to (Noise + Distortion)
level of 68 dB.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD7899AR-2 | 12-Bit Rail-to-Rail Micropower DACs in SO-8; Package: PDIP; No of Pins: 8; Temperature Range: -40°C to +85°C |
| AD7899AR-3 | Dual 12-Bit Rail-to-Rail Micropower DACs; Package: SO; No of Pins: 16; Temperature Range: 0°C to +70°C |
| AD7899ARS-1 | Dual 12-Bit Rail-to-Rail Micropower DACs; Package: SO; No of Pins: 16; Temperature Range: -40°C to +85°C |
| AD7899ARS-2 | Analog-to-Digital Converter， 14-Bit |
| AD7899ARS-3 | Dual 12-Bit Rail-to-Rail Micropower DACs; Package: SO; No of Pins: 16; Temperature Range: 0°C to +70°C |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7899AR-1REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 400ksps 14-bit Parallel 28-Pin SOIC W T/R |
| AD7899AR-1REEL7 | 制造商:Analog Devices 功能描述:ADC SGL SAR 400KSPS 14BIT PARALLEL 28SOIC W - Tape and Reel |
| AD7899AR-2 | 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(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):12 采樣率（每秒）:3M 數(shù)據(jù)接口:- 轉(zhuǎn)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(yīng)商設(shè)備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:- |
| AD7899AR-2REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 400ksps 14-bit Parallel 28-Pin SOIC W T/R |
| AD7899AR-2REEL7 | 制造商:Analog Devices 功能描述:ADC SGL SAR 400KSPS 14BIT PARALLEL 28SOIC W - Tape and Reel |