參數(shù)資料
型號: MAX11115AUT+T
廠商: Maxim Integrated Products
文件頁數(shù): 19/30頁
文件大?。?/td> 0K
描述: IC ADC 8BIT SPI/SRL 2MSPS 6SOT23
其它有關(guān)文件: Automotive Product Guide
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 1
位數(shù): 8
采樣率(每秒): 2M
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): 696mW
電壓電源: 單電源
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: SOT-23-6
供應商設備封裝: SOT-23-6
包裝: 標準包裝
輸入數(shù)目和類型: 1 個單端,單極
其它名稱: MAX11115AUT+TDKR
26
Maxim Integrated
2Msps/3Msps, Low-Power,
Serial 12-/10-/8-Bit ADCs
MAX11102/03/05/06/10/11/15/16/17
Figure 15. Channel Select Timing Diagram
Dual-Channel Operation
The MAX11102/MAX11103/MAX11106/MAX11111 fea-
ture dual-input channels. These devices use a channel-
select (CHSEL) input to select between analog input AIN1
(CHSEL = 0) or AIN2 (CHSEL = 1). As shown in Figure
15, the CHSEL signal is required to change between the
2nd and 12th clock cycle within a regular conversion to
guarantee proper switching between channels.
14-Cycle Conversion Mode
The ICs can operate with 14 cycles per conversion.
Figure 16 shows the corresponding timing diagram.
Observe that DOUT does not go into high-impedance
mode. Also, observe that tACQ needs to be sufficiently
long to guarantee proper settling of the analog input
voltage. See the Electrical Characteristics table for tACQ
requirements and the Analog Input section for a descrip-
tion of the analog inputs.
Applications Information
Layout, Grounding, and Bypassing
For best performance, use PCBs with a solid ground
plane. Ensure that digital and analog signal lines are
separated from each other. Do not run analog and digital
(especially clock) lines parallel to one another or digital
lines underneath the ADC package. Noise in the VDD
power supply, OVDD, and REF affects the ADC’s perfor-
mance. Bypass the VDD, OVDD, and REF to ground with
0.1FF and 10FF bypass capacitors. Minimize capacitor
lead and trace lengths for best supply-noise rejection.
Choosing an Input Amplifier
It is important to match the settling time of the input
amplifier to the acquisition time of the ADC. The conver-
sion results are accurate when the ADC samples the
input signal for an interval longer than the input signal’s
worst-case settling time. By definition, settling time is
the interval between the application of an input voltage
step and the point at which the output signal reaches
Figure 16. 14-Clock Cycle Operation
1
DATA CHANNEL AIN1
DATA CHANNEL AIN2
SCLK
CHSEL
DOUT
CS
23456
78
910111213141516
123456
78
910111213141516
1
DOUT
SCLK
(MSB)
SAMPLE
1/fSAMPLE
tACQ
tCONVERT
CS
23
4
D10
D11
56
78
910111213141
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
00
0
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX11116 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:2Msps/3Msps, Low-Power, Serial 12-/10-/8-Bit ADCs
MAX11116AUT+ 制造商:Maxim Integrated Products 功能描述:SMALL, 2.2V TO 3.6V, LOW-POWER, 1-/2-CHANNEL, SERIAL, 8-/10- - Rail/Tube
MAX11116AUT+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8Bit 1Ch 3Msps Serial 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX11117 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:2Msps/3Msps, Low-Power, Serial 12-/10-/8-Bit ADCs
MAX11117AUT+ 制造商:Maxim Integrated Products 功能描述:SMALL, 2.2V TO 3.6V, LOW-POWER, 1-/2-CHANNEL, SERIAL, 8-/10- - Rail/Tube