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參數資料
| 型號： | AD7940 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | ADC |
| 英文描述： | 3mW, 100kSPS, 14-Bit ADC in 6-Lead SOT-23 |
| 中文描述： | 3MW的，100ksps的14位ADC的6引腳SOT - 23 |
| 文件頁數： | 9/20頁 |
| 文件大小： | 480K |
| 代理商： | AD7940 |
AD7940
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 5 shows a typical FFT plot for the AD7940 at 100 kSPS
sample rate and 10 kHz input frequency. Figure 6 shows the
signal-to-(noise + distortion) ratio performance versus the
input frequency for various supply voltages while sampling at
100 kSPS with an SCLK of 2.5 MHz.
Rev. 0 | Page 9 of 20
Figure 7 shows a graph of the total harmonic distortion versus
the analog input frequency for various supply voltages, while
Figure 8 shows a graph of the total harmonic distortion versus
the analog input frequency for various source impedances (see
the Analog Input section). Figure 9 and Figure 10 show the
typical INL and DNL plots for the AD7940.
0
(
–140
–120
–100
–80
–60
–40
–20
–160
0
10k
20k
FREQUENCY (kHz)
30k
40k
50k
0
V
DD
= 4.75V
F
SAMPLE
= 100kSPS
F
SNR = 84.48dB
SINAD = 84.35dB
THD = –98.97dB
SFDR = –100.84dB
Figure 5. AD7940 Dynamic Performance at 100 kSPS
0
S
80
85
75
10
INPUT FREQUENCY (kHz)
100
90
F
SAMPLE
= 100kSPS
T
A
°
C
V
DD
= 5.25V
V
DD
= 4.75V
V
DD
= 2.5V
V
DD
= 4.3V
V
DD
= 3.6V
V
DD
= 3V
V
DD
= 2.7V
Figure 6. AD7940 SINAD vs. Analog Input Frequency
for Various Supply Voltages at 100 kSPS
0
T
90
100
80
10
INPUT FREQUENCY (kHz)
100
110
85
95
105
F
SAMPLE
= 100kSPS
T
A
°
C
V
DD
= 3V
V
DD
= 2.7V
V
DD
= 4.3V
V
DD
= 2.5V
V
DD
= 5.25V
V
DD
= 4.75V
V
DD
= 3.6V
Figure 7. AD7940 THD vs. Analog Input Frequency
for Various Supply Voltages at 100 kSPS
0
T
90
100
70
75
10
INPUT FREQUENCY (kHz)
100
110
85
80
95
105
F
SAMPLE
= 100kSPS
T
A
°
C
V
DD
= 4.75V
R
IN
= 10
R
IN
= 50
R
IN
= 100
R
IN
= 1000
Figure 8. AD7940 THD vs. Analog Input Frequency
for Various Source Impedances
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7940BRJ | 制造商:Analog Devices 功能描述:100 KSPS, 14_BIT ADC SOT 23 PKG I.C. - Bulk |
| AD7940BRJ-R2 | 制造商:Analog Devices 功能描述:ADC Single SAR 100ksps 14-bit Serial 6-Pin SOT-23 T/R 制造商:Analog Devices 功能描述:ADC SGL SAR 100KSPS 14BIT SERL 6PIN SOT-23 - Tape and Reel |
| AD7940BRJ-REEL7 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD7940BRJZ-REEL7 | 功能描述:IC ADC 14BIT 100KSPS SOT-23-6 RoHS:是 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:microPOWER™ 位數:8 采樣率（每秒）:1M 數據接口:串行，SPI? 轉換器數目:1 功率耗散（最大）:- 電壓電源:模擬和數字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應商設備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數目和類型:8 個單端，單極 產品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| AD7940BRM | 功能描述:IC ADC 14BIT UNIPOLAR 8-MSOP 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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