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參數資料
| 型號： | MAX192AEWP+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 3/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 10BIT SERIAL 20-SOIC |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 36 |
| 類型： | 數據采集系統(tǒng)（DAS），ADC |
| 分辨率（位）： | 10 b |
| 采樣率（每秒）： | 133k |
| 數據接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 電壓電源： | 單電源 |
| 電源電壓： | ±5V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 20-SOIC W |
| 包裝： | 管件 |
External Clock
In external clock mode, the external clock not only
shifts data in and out, it also drives the analog-to-digital
conversion steps. SSTRB pulses high for one clock
period after the last bit of the control byte.
Successive-approximation bit decisions are made and
appear at DOUT on each of the next 12 SCLK falling
edges (see Figure 6). The first 10 bits are the true data
bits, and the last two are sub-LSB bits.
SSTRB and DOUT go into a high-impedance state when
CS goes high; after the next CS falling edge, SSTRB will
output a logic low. Figure 8 shows the SSTRB timing in
external clock mode.
The conversion must complete in some minimum time, or
else droop on the sample-and-hold capacitors may
degrade conversion results. Use internal clock mode if the
clock period exceeds 10s, or if serial-clock interruptions
could cause the conversion interval to exceed 120s.
Internal Clock
In internal clock mode, the MAX192 generates its own
conversion clock internally. This frees the microproces-
sor from the burden of running the SAR conversion
clock, and allows the conversion results to be read
back at the processor’s convenience, at any clock rate
from zero to typically 10MHz. SSTRB goes low at the
start of the conversion and then goes high when the
conversion is complete. SSTRB will be low for a maxi-
mum of 10s, during which time SCLK should remain
low for best noise performance. An internal register
stores data when the conversion is in progress. SCLK
clocks the data out at this register at any time after the
conversion is complete. After SSTRB goes high, the
next falling clock edge will produce the MSB of the
conversion at DOUT, followed by the remaining bits in
MSB-first format (Figure 9). CS does not need to be
held low once a conversion is started.
MAX192
Low-Power, 8-Channel,
Serial 10-Bit ADC
______________________________________________________________________________________
11
0.1
F
VDD
DGND
AGND
CS
SCLK
DIN
DOUT
SSTRB
SHDN
+5V
N.C.
0.01
F
CH7
REFADJ
VREF
C2
0.01
F
+2.5V
REFERENCE
C1
4.7
F
0V TO
4.096V
ANALOG
INPUT
+2.5V
**
OSCILLOSCOPE
CH1
CH2
CH3
CH4
* FULL-SCALE ANALOG INPUT, CONVERSION RESULT = $FFF (HEX)
**OPTIONAL. A POTENTIOMETER MAY BE USED IN PLACE OF THE REFERENCE FOR TEST PURPOSES.
MAX192
+5V
2MHz
OSCILLATOR
SCLK
SSTRB
DOUT*
Figure 5. Quick-Look Circuit
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX192AEWP/GG8 | 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 |
| MAX192AEWP+ | 功能描述:模數轉換器 - ADC 10-Bit 8Ch 133ksps 5V Precision 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 |
| MAX192AEWP+T | 功能描述:模數轉換器 - ADC 10-Bit 8Ch 133ksps 5V Precision 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 |
| MAX192AEWP-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 |
| MAX192BCAP | 功能描述:模數轉換器 - ADC Integrated Circuits (ICs) 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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