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參數(shù)資料
| 型號： | MAX1400CAI+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 13/34頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 18BIT LP 28-SSOP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 46 |
| 位數(shù)： | 18 |
| 采樣率（每秒）： | 480 |
| 數(shù)據(jù)接口： | QSPI?，串行，SPI? |
| 轉換器數(shù)目： | 1 |
| 功率耗散（最大）： | 1.25mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應商設備封裝： | 28-SSOP |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 3 個差分，單極；3 個差分，雙極；5 個偽差分，單極；5 個偽差分，雙極 |
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MAX1400
+5V, 18-Bit, Low-Power, Multichannel,
Oversampling (Sigma-Delta) ADC
20
______________________________________________________________________________________
Table 11. Channel ID Tag Codes
Switching Network
A switching network provides selection between three
fully differential input channels or five pseudo-differen-
tial channels, using AIN6 as a shared common. The
switching network provides two additional fully differen-
tial input channels intended for system calibration,
which may be used as extra fully differential signal
channels. Table 12 shows the channel configurations
available for both operating modes.
Scanning (SCAN-mode)
To sample and convert the available input channels
sequentially, set the SCAN control bit in the global
setup register. The sequence is determined by DIFF
(fully differential or pseudo-differential) and by the
mode control bits M1 and M0 (Tables 8, 9, 10). With
SCAN set, the part automatically sequences through
each available channel, transmitting a single conver-
sion result before proceeding to the next channel. The
MAX1400 automatically allows sufficient time for each
conversion to fully settle, to ensure optimum resolution
before asserting the data-ready signal and moving to
the next available channel. The scan rate is, therefore,
dependent on the clock bit (CLK), the filter control bits
(FS1, FS0), and the modulator frequency selection bits
(MF1, MF0).
Burnout Currents
The input circuitry also provides two “burnout” currents.
These small currents may be used to test the integrity
of the selected transducer. They can be selectively
enabled or disabled by the BOUT bit in the global
setup register.
CHANNEL
CID2
1
AIN1–AIN2
AIN5–AIN6
1
Calibration
1
0
1
AIN3–AIN4
1
0
AIN1–AIN6
AIN3–AIN6
0
AIN4–AIN6
1
0
1
0
AIN2–AIN6
1
0
CID0
0
CID1
0
Table 12. Input Channel Configuration in Fully and Pseudo-Differential Modes
(SCAN = 0)
X = Don’t Care.
* This combination is available only in pseudo-differential mode when using the internal scanning logic
** These combinations are only available in the calibration modes.
0
M0
0
DIFF
0
AIN2
0
AIN4
0
AIN3
AIN1
0
1
0
1
AIN3
0
1
X
CALOFF+**
0
AIN5
AIN1
0
X
1
X
CALOFF+**
M1
0
X
HIGH INPUT
CALGAIN+**
AIN5*
1
0
X
CALGAIN+**
1
0
A1
0
1
0
1
X
MODE
Pseudo-
Differential
Fully
Differential
0
A0
1
0
1
0
1
0
X
AIN6
AIN4
CALOFF-**
AIN6
AIN2
CALOFF-**
LOW INPUT
CALGAIN-**
AIN6*
CALGAIN-**
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1400CAI+ | 功能描述:模數(shù)轉換器 - ADC 18-Bit 5Ch 4.8ksps 2.5V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)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 |
| MAX1400CAI+T | 功能描述:模數(shù)轉換器 - ADC 18-Bit 5Ch 4.8ksps 2.5V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)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 |
| MAX1400CAI+W | 制造商:Maxim Integrated Products 功能描述: |
| MAX1400CAI-T | 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)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 |
| MAX1400EAI | 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)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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