參數(shù)資料
型號(hào)： MAX1111EPE+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 5/20頁(yè)
文件大?。?/td> 0K
描述： IC ADC 8BIT LP 16-DIP
標(biāo)準(zhǔn)包裝： 25
位數(shù)： 8
采樣率（每秒）： 50k
數(shù)據(jù)接口： MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 667mW
電壓電源： 單電源
工作溫度： 0°C ~ 70°C
安裝類型： 通孔
封裝/外殼： 16-DIP（0.300"，7.62mm）
供應(yīng)商設(shè)備封裝： 16-PDIP
包裝： 管件
輸入數(shù)目和類型： 4 個(gè)單端，單極；2 個(gè)差分，單極
MAX1110/MAX1111
+2.7V, Low-Power, Multichannel,
Serial 8-Bit ADCs
______________________________________________________________________________________
13
Digital Output
In unipolar input mode, the output is straight binary
(Figure 15). For bipolar inputs, the output is two’s-com-
plement (Figure 16). Data is clocked out at SCLK’s
falling edge in MSB-first format.
Clock Modes
The MAX1110/MAX1111 can use either an external ser-
ial clock or the internal clock to perform the successive-
approximation conversion. In both clock modes, the
external clock shifts data in and out of the devices. Bit
PD0 of the control byte programs the clock mode.
Figures 8–11 show the timing characteristics common
to both modes.
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 two clock
periods after the last bit of the control byte. Successive-
approximation bit decisions are made and appear at
DOUT on each of the next eight SCLK falling edges
(Figure 7). After the eight data bits are clocked out,
subsequent clock pulses clock out zeros from the
DOUT pin.
SSTRB and DOUT go into a high-impedance state
when CS goes high; after the next CS falling edge,
SSTRB outputs a logic low. Figure 9 shows the SSTRB
timing in external clock mode.
The conversion must complete in 1ms, or droop on the
sample-and-hold capacitors can degrade conversion
results. Use internal clock mode if the serial-clock fre-
quency is less than 50kHz, or if serial-clock interruptions
could cause the conversion interval to exceed 1ms.
CS
SCLK
DIN
DOUT
tCSH
tCSS
tCL
tDS
tDH
tDV
tDO
tCH
tDO
tTR
tCSH
Figure 8. Detailed Serial-Interface Timing
tSDV
tSSTRB
PD0 CLOCKED IN
tSTR
SSTRB
SCLK
CS
tSSTRB
Figure 9. External Clock Mode SSTRB Detailed Timing
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1111EPE+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 2.7V Low-Power Multi Ch Serial 8-Bit 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
MAX1111MJE 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
MAX1112 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:+5V, Low-Power, Multi-Channel, Serial 8-Bit ADCs
MAX11120 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1Msps, Low-Power, Serial 12-/10-/8-Bit, 4-/8-/16-Channel ADCs
MAX11120_12 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1Msps, Low-Power, Serial 12-/10-/8-Bit,4-/8-/16-Channel ADCs
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