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參數資料
| 型號： | MAX1090AEEI+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 5/20頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 10BIT 400KSPS 28-QSOP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 50 |
| 位數： | 10 |
| 采樣率（每秒）： | 400k |
| 數據接口： | 并聯 |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 667mW |
| 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： | 28-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 28-QSOP |
| 包裝： | 管件 |
| 輸入數目和類型： | 8 個單端，單極；8 個單端，雙極；4 個偽差分，單極；4 個偽差分，雙極 |
Internal Clock Mode
Select internal clock mode to release the P from the
burden of running the SAR conversion clock. To select
this mode, bit D7 of the control byte must be set to 1
and bit D6 must be set to 0. The internal clock frequen-
cy is then selected, resulting in a 3.6s conversion time.
When using the internal clock mode, connect the CLK
pin either high or low to prevent the pin from floating.
External Clock Mode
To select the external clock mode, bits D6 and D7 of the
control byte must be set to one. Figure 6 shows the clock
and WR timing relationship for internal (Figure 6a) and
external (Figure 6b) acquisition modes with an external
clock. Proper operation requires a 100kHz to 7.6MHz
clock frequency with 30% to 70% duty cycle. Operating
the MAX1090/MAX1092 with clock frequencies lower
than 100kHz is not recommended, because it causes a
voltage droop across the hold capacitor in the T/H stage,
which results in degraded performance.
MAX1090/MAX1092
400ksps, +5V, 8-/4-Channel, 10-Bit ADCs
with +2.5V Reference and Parallel Interface
______________________________________________________________________________________
13
WR
CLK
WR
WR GOES HIGH WHEN CLK IS HIGH.
WR GOES HIGH WHEN CLK IS LOW.
tCWS
tCH
tCL
tCP
tCWH
ACQUISITION STARTS
CONVERSION STARTS
ACQUISITION ENDS
ACQMOD = "0"
Figure 6a. External Clock and WR Timing (Internal Acquisition Mode)
WR
CLK
WR
WR GOES HIGH WHEN CLK IS HIGH.
WR GOES HIGH WHEN CLK IS LOW.
tDH
tCWH
tCWS
ACQUISITION STARTS
CONVERSION STARTS
ACQUISITION ENDS
ACQMOD = "1"
ACQMOD = "0"
Figure 6b. External Clock and WR Timing (External Acquisition Mode)
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| MAX1090AEEI+ | 功能描述:模數轉換器 - ADC 400ksps 8Ch 10-Bit w/Internal 2.5V ref RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1090AEEI+T | 功能描述:模數轉換器 - ADC 400ksps 8Ch 10-Bit w/Internal 2.5V ref RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1090AEEI-T | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1090BCEI | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1090BCEI+ | 功能描述:模數轉換器 - ADC 400ksps 8Ch 10-Bit w/Internal 2.5V ref RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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