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參數資料
型號: AD7918
廠商: Analog Devices, Inc.
英文描述: 8-Channel, 1 MSPS, 8-/10-/12-Bit ADCs with Sequencer in 20-Lead TSSOP
中文描述: 8通道,1 MSPS的,8-/10-/12-Bit與序列ADC的20引腳TSSOP封裝
文件頁數: 12/24頁
文件大小: 607K
代理商: AD7918
AD7908/AD7918/AD7928
Typical Performance Characteristics
REV. A
PERFORMANCE CURVES
TPC 1 shows a typical FFT plot for the AD7928 at 1 MSPS
sample rate and 50 kHz input frequency. TPC 2 shows the
signal-to-(noise + distortion) ratio performance versus input
frequency for various supply voltages while sampling at 1 MSPS
with an SCLK of 20 MHz.
TPC 3 shows the power supply rejection ratio versus supply
ripple frequency for the AD7928 when no decoupling is used.
The power supply rejection ratio is defined as the ratio of the
power in the ADC output at full-scale frequency f, to the power
of a 200 mV p-p sine wave applied to the ADC AV
DD
supply of
frequency f
S
:
PSRR dB
Pf
is equal to the power at frequency f in ADC output;
Pf
S
is
equal to the power at frequency f
S
coupled onto the ADC AV
DD
supply. Here a 200 mV p-p sine wave is coupled onto the AV
DD
supply.
Pf
Pfs
(
)
log(
/
)
=
10
TPC 4 shows a graph of total harmonic distortion versus analog
input frequency for various supply voltages, while TPC 5 shows
a graph of total harmonic distortion versus analog input frequency
for various source impedances. See the Analog Input section.
TPC 6 and TPC 7 show typical INL and DNL plots for the
AD7928.
FREQUENCY (kHz)
–10
0
100
200
300
400
500
S
–30
–50
–70
–90
–110
50
150
250
350
450
4096 POINT FFT
AV
DD
= 5V
f
SAMPLE
= 1MSPS
f
SINAD = 71.147dB
THD = –87.229dB
SFDR = –90.744dB
TPC 1. AD7928 Dynamic Performance at 1 MSPS
INPUT FREQUENCY (kHz)
75
10
1000
S
70
65
60
55
100
f
SAMPLE
= 1MSPS
T
RANGE = 0 TO REF
IN
AV
DD
= V
DRIVE
= 2.7V
AV
DD
= V
DRIVE
= 3.6V
AV
DD
= V
DRIVE
= 4.75V
AV
DD
= V
DRIVE
= 5.25V
TPC 2. AD7928 SINAD vs. Analog Input Frequency for
Various Supply Voltages at 1 MSPS
SUPPLY RIPPLE FREQUENCY (kHz)
0
0
1000
P
–40
–60
–80
–90
500
–20
–50
–70
900
800
700
600
400
300
200
100
AV
= 5V
200mV p-p SINE WAVE ON AV
DD
REF
= 2.5V, 1 F CAPACITOR
T
A
= 25 C
–10
–30
TPC 3. AD7928 PSRR vs. Supply Ripple Frequency
INPUT FREQUENCY (kHz)
–50
10
1000
T
–65
–75
–85
–90
–60
–70
–80
100
–55
AV
DD
= V
DRIVE
= 5.25V
AV
DD
= V
DRIVE
= 4.75V
AV
DD
= V
DRIVE
= 2.7V
f
SAMPLE
= 1MSPS
T
RANGE = 0 TO REF
IN
AV
DD
= V
DRIVE
= 3.6V
TPC 4. AD7928 THD vs. Analog Input Frequency for
Various Supply Voltages at 1 MSPS
INPUT FREQUENCY (kHz)
–50
10
1000
T
–65
–75
–85
–90
–60
–70
–80
100
–55
f
SAMPLE
= 1MSPS
T
RANGE = 0 TO REF
IN
AV
DD
= 5.25V
R
IN
= 1000
R
IN
= 10
R
IN
= 50
R
IN
= 100
TPC 5. AD7928 THD vs. Analog Input Frequency for
Various Source Impedances
–12–
相關PDF資料
PDF描述
AD7918BRU 8-Channel, 1 MSPS, 8-/10-/12-Bit ADCs with Sequencer in 20-Lead TSSOP
AD7918BRU-REEL 8-Channel, 1 MSPS, 8-/10-/12-Bit ADCs with Sequencer in 20-Lead TSSOP
AD7918BRU-REEL7 8-Channel, 1 MSPS, 8-/10-/12-Bit ADCs with Sequencer in 20-Lead TSSOP
AD7928 8-Channel, 1 MSPS, 8-/10-/12-Bit ADCs with Sequencer in 20-Lead TSSOP
AD7928BRU 8-Channel, 1 MSPS, 8-/10-/12-Bit ADCs with Sequencer in 20-Lead TSSOP
相關代理商/技術參數
參數描述
AD7918BRU 功能描述:IC ADC 10BIT 8CH 1MSPS 20-TSSOP 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
AD7918BRU-REEL 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 10-bit Serial 20-Pin TSSOP T/R 制造商:Rochester Electronics LLC 功能描述:10-BIT 8, CH 1 MSPS ADC I.C. - Tape and Reel
AD7918BRU-REEL7 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 10-bit Serial 20-Pin TSSOP T/R 制造商:Analog Devices 功能描述:ADC SGL SAR 1MSPS 10-BIT SERL 20TSSOP - Tape and Reel
AD7918BRUZ 功能描述:IC ADC 10BIT 8CH 1MSPS 20-TSSOP 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
AD7918BRUZ-REEL 制造商:AD 制造商全稱:Analog Devices 功能描述:8-Channel, 1 MSPS, 8-/10-/12-Bit ADCs
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