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參數(shù)資料
| 型號： | MAX194AEPE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | ADC |
| 英文描述： | Fixed-Point Digital Signal Processor 532-FCBGA |
| 中文描述： | 1-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 12/24頁 |
| 文件大?。?/td> | 223K |
| 代理商： | MAX194AEPE |
M
be improved by trimming, but the drift is too great to
provide good stability over temperature. The MAX427
buffer provides the necessary drive current to stabilize
the REF input quickly after capacitance changes.
The reference inaccuracies contribute additional full-
scale error. A reference with less than
1
2
14
total error
(61 parts per million) over the operating temperature
range is required to maintain full 14-bit accuracy. The
MAX6241 achieves a drift specification of 1ppm/°C
(typ) and easily drives the REF input directly. This
allows large temperature changes with less than 1LSB
error. While the MAX6241’s initial-accuracy specifica-
tion (0.02%) results in a maximum error of about
±4LSB, the reference voltage can be trimmed or the
offset can be corrected in software if absolute DC
accuracy is essential. Figure 11’s circuit provides out-
standing temperature stability and also provides excel-
lent DC accuracy if the initial error is corrected.
14-Bit, 85ksps ADC with 10μA S hutdown
12
______________________________________________________________________________________
14
16
15
12
MAX194
MAX427
AGND
VSSA
VDDA
4
4
7
6
8
6
2
2
3
MAX874
GND
V
IN
COMP
V
OUT
4.096V
+15V
-15V
47
μ
F
LOW
ESR
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
1000pF
0.1
μ
F
0.1
μ
F
1k
10
2k
REF
1N914
1N914
10
-5V
+5V
6
12
5
4
14
3
2.2
μ
F
V
IN
≥
8V
1
μ
F
10k
2.2
μ
F
0.1
μ
F
2
MAX6241
IN
OUT
REF
TRIM
NR
GND
AGND
MAX194
Figure 10. Typical Reference Circuit for AC Accuracy
Figure 11. High-Accuracy Reference
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX194AMDE | 14-Bit, 85ksps ADC with 10A Shutdown |
| MAX194BEPE | Fixed-Point Digital Signal Processor 532-FCBGA |
| MAX194BEWE | 14-Bit, 85ksps ADC with 10A Shutdown |
| MAX194BMDE | 14-Bit, 85ksps ADC with 10A Shutdown |
| MAX195ACDE | 16-Bit, 85ksps ADC with 10レA Shutdown |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX194AEWE | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX194AEWE/GG8 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-Bit 85ksps ADC with 10uA Shutdown RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX194AEWE+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX194AEWE+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX194AEWE-T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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