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參數(shù)資料
| 型號： | MAX1189BCUI+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 4/15頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 16BIT 135KSPS 28-TSSOP |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 135k |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 1.03W |
| 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-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-TSSOP |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 1 個單端，雙極 |
MAX1179/MAX1187/MAX1189
onto the analog lines. If the analog and digital sections
share the same supply, isolate the digital and analog
supply by connecting them with a low value (10
)
resistor or ferrite bead.
The ADC is sensitive to high-frequency noise on the
AVDD supply. Bypass AVDD to AGND with a 0.1F
capacitor in parallel with a 1F to 10F low-ESR capaci-
tor with the smallest capacitor closest to the device.
Keep capacitor leads short to minimize stray inductance.
Definitions
Integral Nonlinearity
Integral nonlinearity (INL) is the deviation of the values
on an actual transfer function from a straight line. This
straight line can be either a best-straight-line fit or a line
drawn between the end points of the transfer function,
once offset and gain errors have been nullified. The
static linearity parameters for the MAX1179/MAX1187/
MAX1189 are measured using the endpoint method.
Differential Nonlinearity
Differential nonlinearity (DNL) is the difference between
an actual step-width and the ideal value of 1LSB. A
DNL error specification of 1LSB guarantees no missing
codes and a monotonic transfer function.
Signal-to-Noise Ratio
For a waveform perfectly reconstructed from digital
samples, signal-to-noise ratio (SNR) is the ratio of the
full-scale analog input (RMS value) to the RMS quanti-
zation error (residual error). The ideal, theoretical mini-
mum analog-to-digital noise is caused by quantization
noise error only and results directly from the ADC’s res-
olution (N bits):
SNR = ((6.02 N) + 1.76)dB
where N = 16 bits.
In reality, there are other noise sources besides quanti-
zation noise: thermal noise, reference noise, clock jitter,
16-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
12
______________________________________________________________________________________
Figure 12a. MAX1179 Analog Input Current
MAX1179
ANALOG INPUT CURRENT
vs. ANALOG INPUT VOLTAGE
ANALOG INPUT VOLTAGE (V)
ANALOG
INPUT
CURRENT
(mA)
2.5
0
-2.5
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
-2.0
-5.0
5.0
SHUTDOWN MODE
STANDBY MODE
Figure 12b. MAX1189 Analog Input Current
MAX1189
ANALOG INPUT CURRENT
vs. ANALOG INPUT VOLTAGE
ANALOG INPUT VOLTAGE (V)
ANALOG
INPUT
CURRENT
(mA)
5
0
-5
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
-10
10
SHUTDOWN MODE
STANDBY MODE
Figure 11. MAX1179/MAX1187/MAX1189 Fast-Settling Input
Buffer
MAX1179
MAX1187
MAX1189
MAX427
REF
**
*
AIN
ANALOG
INPUT
*MAX1187 ONLY.
**MAX1179/MAX1189 ONLY.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1189BCUI+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 135ksps 4.2V Precision 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 |
| MAX1189BCUI+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 135ksps 4.2V Precision 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 |
| MAX1189BCUI-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 |
| MAX1189BEUI | 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 |
| MAX1189BEUI+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 135ksps 4.2V Precision 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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