參數(shù)資料
型號(hào): MAX1285
廠商: Maxim Integrated Products, Inc.
英文描述: 400ksps/300ksps, Single-Supply, Low-Power, Serial 12-Bit ADCs with Internal Reference
中文描述: 400ksps/300ksps、單電源、低功耗、串行12位ADC,內(nèi)置電壓基準(zhǔn)
文件頁(yè)數(shù): 11/15頁(yè)
文件大?。?/td> 210K
代理商: MAX1285
M
400ksps/300ksps, Single-Supply, Low-Power,
Serial 12-Bit ADCs with Internal Reference
______________________________________________________________________________________
11
Applications Information
Connection to Standard Interfaces
The MAX1284/MAX1285 serial interface is fully compat-
ible with SPI/QSPI and MICROWIRE (Figure 11).
If a serial interface is available, set the CPU
s serial interface
in master mode so the CPU generates the serial clock.
Choose a clock frequency up to 6.4MHz (MAX1284) or
4.8MHz (MAX1285).
1) Use a general-purpose I/O line on the CPU to pull
CS
low. Keep SCLK low.
2) Activate SCLK for a minimum of fifteen clock cycles.
The first two clocks produce zeros at DOUT. DOUT
output data transitions 20ns after the third SCLK rising
edge and is available in MSB-first format. Observe the
0
0.0001
0.50
0.25
1.00
0.75
1.25
1.50
0.01
0.001
0.1
1
10
TIME IN SHUTDOWN (s)
R
C
REF
= 4.7
μ
F
Figure 7. Reference Power-Up vs. Time in Shutdown
A/D STATE
DOUT HIGH-Z
HIGH-Z
D11 D10 D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
SCLK
1
4
3
8
12
15
ACQ
CS
HOLD/CONVERT
ACQUISITION
Figure 8. Interface Timing Sequence
CS
SCLK
DOUT
t
DOE
t
DOH
t
DOV
t
DOD
t
CSO
t
t
CSS
t
CSI
t
CSH
t
CH
t
CL
t
CP
t
CSW
Figure 9. Detailed Serial-Interface Timing
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MAX1285BCSA 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Integrated Circuits (ICs) 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX1285BCSA+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 300ksps 3.6V 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX1285BCSA+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 300ksps 3.6V 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX1285BCSA-T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Integrated Circuits (ICs) 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX1285BESA 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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