- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383320 > MAX145BEPA (MAXIM INTEGRATED PRODUCTS INC) +2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin レMAX PDF資料下載
參數(shù)資料
| 型號： | MAX145BEPA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | ADC |
| 英文描述： | +2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin レMAX |
| 中文描述： | 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, MS-001AB, DIP-8 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 240K |
| 代理商： | MAX145BEPA |
M
fication, and the first four data bits starting with the
MSB. The second 8-bit data stream contains the
remaining bits, D7 through D0.
QSPI Interface
Using the high-speed QSPI interface with CPOL = 0
and CPHA = 0, the MAX144/MAX145 support a maxi-
mum f
SCLK
of 2.17MHz. The QSPI circuit in Figure 9a
can be programmed to perform a conversion on each
of the two channels for the MAX144. Figure 9b shows
the QSPI interface timing.
PIC16 with SSP Module and PIC17 Interface
The MAX144/MAX145 are compatible with a PIC16/
PIC17 controller (μC), using the synchronous serial-port
(SSP) module.
To establish SPI communication, connect the controller
as shown in Figure 10a and configure the PIC16/PIC17
as system master by initializing its synchronous serial-
port control register (SSPCON) and synchronous serial-
port status register (SSPSTAT) to the bit patterns shown
in Tables 2 and 3.
In SPI mode, the PIC16/PIC17 μCs allow 8 bits of data
to be synchronously transmitted and received simulta-
neously. Two consecutive 8-bit readings (Figure 10b)
are necessary to obtain the entire 12-bit result from the
ADC. DOUT data transitions on the serial clock’s falling
edge and is clocked into the μC on SCLK’s rising edge.
The first 8-bit data stream contains three leading ones,
the channel identification, and the first four data bits
starting with the MSB. The second 8-bit data stream
contains the remaining bits, D7 through D0.
+2.7V, Low-Power, 2-Channel, 108ksps,
S erial 12-Bit ADCs in 8-Pin μMAX
12
______________________________________________________________________________________
CHID D11
D10
D9
D8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
D7
D6
D5
D4
D3
HIGH-Z
DOUT
CS/SHDN
SCLK
SAMPLING INSTANT
*WHEN CS/SHDN IS HIGH, DOUT = HIGH-Z
MSB
LSB
D2
D1
D0
Figure 9b. QSPI Interface Timing Sequence (CPOL = CPHA = 0)
CS/SHDN
SCLK
DOUT
CS
SCK
MISO
V
DD
SS
QSPI
MAX144
MAX145
Figure 9a. QSPI Connections
Table 2. Detailed SSPCON Register Contents
CONTROL BIT
MAX144/MAX145
SETTINGS
SYNCHRONOUS SERIAL-PORT CONTROL REGISTER (SSPCON)
WCOL
SSPOV
BIT7
BIT6
X
X
Write Collision Detection Bit
Receive Overflow Detect Bit
CKP
SSPM3
BIT4
BIT3
0
0
Clock Polarity Select Bit. CKP = 0 for SPI master mode selection.
SSPM2
SSPM1
SSPM0
BIT2
BIT1
BIT0
0
0
1
Synchronous Serial-Port Mode Select Bit. Sets SPI master mode and selects
f
CLK
= f
OSC
/ 16.
SSPEN
BIT5
1
Synchronous Serial-Port Enable Bit.
0: Disables serial port and configures these pins as I/O port pins.
1: Enables serial port and configures SCK, SDO and SCI pins as serial port pins.
X = Don’t care
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX144BEUA | +2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin レMAX |
| MAX145BEUA | +2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin レMAX |
| MAX145ACPA | +2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin レMAX |
| MAX145ACUA | +2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin レMAX |
| MAX145AMJA | +2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin レMAX |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX145BEPA+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 108ksps 5.25V High Speed 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 |
| MAX145BEUA | 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 |
| MAX145BEUA+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 108ksps 5.25V High Speed 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 |
| MAX145BEUA+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 108ksps 5.25V High Speed 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 |
| MAX145BEUA-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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。