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參數(shù)資料
| 型號： | MAX1148BEUP+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 13/25頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 14BIT 116KSPS 20-TSSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 位數(shù)： | 14 |
| 采樣率（每秒）： | 116k |
| 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）： | 879mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-TSSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 8 個(gè)單端，單極；8 個(gè)單端，雙極；4 個(gè)差分，單極；4 個(gè)差分，雙極 |
MAX1146–MAX1149
Multichannel, True-Differential,
Serial, 14-Bit ADCs
20
______________________________________________________________________________________
edge and is clocked into the P on SCLK’s rising edge.
The first 8-bit data stream contains the first 8-bits of
DOUT starting with the MSB. The second 8-bit data
stream contains the remaining 6 result bits.
QSPI Interface
Using the high-speed QSPI interface (Figure 17) with
CPOL = 0 and CPHA = 0, the MAX1146–MAX1149 sup-
port a maximum fSCLK of 2.1MHz. One 16-bit reading is
necessary to obtain the entire 14-bit result from the
ADC. DOUT data transitions on the serial clock’s falling
edge and is clocked into the P on SCLK’s rising edge.
The first 14 bits are the data.
PIC16/PIC17 SSP Module Interface
The MAX1146–MAX1149 are compatible with a
PIC16/PIC17 microcontroller (C), using the synchro-
nous serial-port (SSP) module. To establish SPI com-
munication, connect the controller as shown in Figure
18 and configure the PIC16/PIC17 as system master.
Initialize the synchronous serial-port control register
(SSPCON) and synchronous serial-port status register
(SSPSTAT) to the bit patterns shown in Tables 8 and 9.
In SPI mode, the PIC16/PIC17 Cs allow 8 bits of data
to be synchronously transmitted and received simulta-
neously. Two consecutive 8-bit readings are necessary
to obtain the entire 14-bit result from the ADC. DOUT
data transitions on the serial clock’s falling edge and is
clocked into the C on SCLK’s rising edge. The first 8-
bit data stream contains the first 8 data bits starting
with the MSB. The second data stream contains the
remaining bits, D5 through D0.
INPUT VOLTAGE (LSB)
BINAR
Y
OUTPUT
CODE
(LSB)
0123
16383
VREF
V
REF
16381
0...000
0...001
0...010
0...011
1...111
1...110
1...101
1...100
1 LSB =
VREF
16384
Figure 14. Unipolar Transfer Function
INPUT VOLTAGE (LSB)
TWO'S
COMPLEMENT
BINAR
Y
OUTPUT
CODE
(LSB)
0123
8191
8192
8193
16383
VREF
V
REF
16381
1...000
1...001
1...010
1...011
1...111
0...000
0...001
0...111
0...110
0...101
0...100
1 LSB =
VREF
16384
Figure 15. Bipolar Transfer Function
SCLK
DOUT
I/O
SCK
MISO
VDD
SS
SPI
MAX1146–
MAX1149
CS
Figure 16a. SPI Connections
MAX1146–
MAX1149
SCLK
DOUT
I/O
SK
SI
MICROWIRE
CS
Figure 16b. MICROWIRE Connections
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1148CGP | 制造商:Maxim Integrated Products 功能描述:MULTICHANNEL, TRUE-DIFFERENTIAL, SERIAL, 14-B - Rail/Tube |
| MAX1148CUP | 制造商:Maxim Integrated Products 功能描述:MULTICHANNEL, TRUE-DIFFERENTIAL, SERIAL, 14-B - Rail/Tube |
| MAX1148EGP | 制造商:Maxim Integrated Products 功能描述:MULTICHANNEL, TRUE-DIFFERENTIAL, SERIAL, 14-B - Rail/Tube |
| MAX1148EUP | 制造商:Maxim Integrated Products 功能描述:MULTICHANNEL, TRUE-DIFFERENTIAL, SERIAL, 14-B - Rail/Tube |
| MAX1149 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Multichannel, True-Differential, Serial, 14-Bit ADCs |
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