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參數(shù)資料
| 型號： | MAX1169CEUD+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 16BIT 58.6KSPS 14-TSSOP |
| 標準包裝： | 96 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 58.6k |
| 數(shù)據(jù)接口： | I²C，串行 |
| 轉換器數(shù)目： | 1 |
| 功率耗散（最大）： | 864mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 14-TSSOP |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 8 個單端，單極 |
Internal Reference
The MAX1169 contains an internal 4.096V bandgap ref-
erence. This bandgap reference is connected to
REFADJ through a 5kΩ resistor. Bypass REFADJ with a
0.1μF capacitor to AGND. The MAX1169 reference
buffer has a unity gain to provide +4.096V at REF.
Bypass REF with a 10μF capacitor to AGND when the
internal reference is used (Figure 12).
The internal reference is adjustable to ±1.5% using the
circuit of Figure 13.
External Reference
For external reference operation, disable the internal
reference by connecting REFADJ to AVDD. During con-
version, an external reference at REF must deliver up to
100μA of DC load current and have an output imped-
ance of less than 10Ω.
For optimal performance, buffer the reference through
an op amp and bypass REF with a 10μF capacitor.
Consider the MAX1169’s equivalent input noise
(38μVRMS) when choosing a reference.
Transfer Function
The MAX1169 has a standard unipolar transfer function
with a valid analog input voltage range from VAGNDS to
VREF. Output data coding is binary with 1LSB =
(VREF/2N) where N is the number of bits (16). Code
transitions occur halfway between successive-integer
LSB values. Figure 14 shows the MAX1169 input/output
(I/O) transfer function.
Input Buffer
Most applications require an input buffer amplifier to
achieve 16-bit accuracy. If the input signal is multi-
plexed, the input channel should be switched immedi-
ately after acquisition, rather than near the end of or
MAX1169
58.6ksps, 16-Bit, 2-Wire Serial ADC
in a 14-Pin TSSOP
______________________________________________________________________________________
17
Figure 12. Internal Reference
4.096V
BANDGAP
REFERENCE
5k
Ω
SAR
ADC
REF
0.1
μF
10
μF
REF
REFADJ
4.096V
AGND
DGND
AV = 1.0
12
13
9
1
MAX1169
Figure 13. Adjusting the Internal Reference
4.096V
BANDGAP
REFERENCE
5k
Ω
SAR
ADC
REF
0.1
μF
10
μF
REF
REFADJ
4.096V
AGND
DGND
AV = 1.0
12
13
9
1
MAX1169
0.1
μF
150k
Ω
100k
Ω
POTENTIOMETER
68k
Ω
AVDD
5.0V
8
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參數(shù)描述 |
|---|---|
| MAX1169CEUD+ | 功能描述:模數(shù)轉換器 - ADC 16-Bit 58ksps 5.25V 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 |
| MAX1169CEUD+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 |
| MAX1169CEUD-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 |
| MAX1169EVC16 | 功能描述:模數(shù)轉換器 - ADC MAX1169C16 EVAL KIT 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 |
| MAX1169EVKIT | 功能描述:數(shù)據(jù)轉換 IC 開發(fā)工具 Evaluation System/Evaluation Kit for the MAX1169 RoHS:否 制造商:Texas Instruments 產品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
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