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參數(shù)資料
| 型號： | AD7910AKSZ-500RL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 22/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 10BIT SRL 250KSPS SC70-6 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 位數(shù)： | 10 |
| 采樣率（每秒）： | 250k |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 15mW |
| 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： | 6-TSSOP，SC-88，SOT-363 |
| 供應(yīng)商設(shè)備封裝： | SC-70-6 |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 輸入數(shù)目和類型： | 1 個單端，單極 |
| 其它名稱： | AD7910AKSZ-500RL7DKR |
AD7910/AD7920
Rev. C | Page 7 of 24
TIMING EXAMPLES
TIMING EXAMPLE 1
250 kSPS gives a cycle time of t2 + 12.5(1/fSCLK) + tACQ = 4 μs.
With t2 = 10 ns min, this leaves tACQ to be 1.49 μs. This 1.49 μs
comprises 2.5(1/fSCLK) + t8 + tQUIET, where t8 = 36 ns max. This
allows a value of 954 ns for tQUIET, satisfying the minimum
requirement of 50 ns.
TIMING EXAMPLE 2
The AD7920 can also operate with slower clock frequencies.
150 kSPS gives a cycle time of t2 + 12.5(1/fSCLK) + tACQ = 6.66 μs.
With t2 = 10 ns min, this leaves tACQ to be 2.97 μs. This 2.97 μs
comprises 2.5(1/fSCLK) + t8 + tQUIET, t8 = 36 ns max. This allows a
value of 2.19 μs for tQUIET, satisfying the minimum requirement
of 50 ns. As in this example and with other slower clock values,
the signal may already be acquired before the conversion is
complete, but it is still necessary to leave 50 ns minimum tQUIET
between conversions. In this example, the signal should be fully
acquired at approximately Point C in Figure 4.
CS
SCLK
SDATA
t2
t6
t3
t4
t7
t5
t8
tCONVERT
tQUIET
ZERO
DB11
DB10
DB2
DB1
DB0
B
THREE-STATE
THREE-
STATE
Z
4 LEADING ZEROS
12
3
4
5
13
14
15
16
t1
02976-003
Figure 3. AD7920 Serial Interface Timing Diagram
CS
SCLK
t2
tCONVERT
B
12
3
4
5
13
14
15
16
C
t8
tQUIET
tACQ
12.5(1/fSCLK)
1/THROUGHPUT
02976-004
Figure 4. Serial Interface Timing Example
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| AD7910AKSZ-REEL | 功能描述:IC ADC 10BIT SRL 250KSPS SC70-6 RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:480µW 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:38-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類型:16 個單端，雙極；8 個差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| AD7910AKSZ-REEL7 | 功能描述:IC ADC 10BIT SRL 250KSPS SC70-6 RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:480µW 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:38-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類型:16 個單端，雙極；8 個差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| AD7910ARM | 制造商:Analog Devices 功能描述:ADC Single SAR 250ksps 10-bit Serial 8-Pin MSOP 制造商:Analog Devices 功能描述:IC 10BIT ADC SMD 7910 MSOP8 |
| AD7910ARM-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 250ksps 10-bit Serial 8-Pin MSOP T/R 制造商:Analog Devices 功能描述:ADC SGL SAR 250KSPS 10-BIT SERL 8MSOP - Tape and Reel |
| AD7910ARM-REEL7 | 制造商:Analog Devices 功能描述:ADC Single SAR 250ksps 10-bit Serial 8-Pin MSOP T/R |
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