參數資料
型號: MAX186ACWP+T
廠商: Maxim Integrated Products
文件頁數: 3/25頁
文件大?。?/td> 0K
描述: IC ADC 12BIT SERIAL 20-SOIC
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 1,000
類型: 數據采集系統(tǒng)(DAS),ADC
分辨率(位): 12 b
采樣率(每秒): 133k
數據接口: MICROWIRE?,QSPI?,串行,SPI?
電壓電源: 雙 ±
電源電壓: ±5V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
供應商設備封裝: 20-SOIC W
包裝: 帶卷 (TR)
2) Use a general-purpose I/O line on the CPU to pull
CS on the MAX186/MAX188 low.
3) Transmit TB1 and simultaneously receive a byte
and call it RB1. Ignore RB1.
4) Transmit a byte of all zeros ($00 HEX) and simulta-
neously receive byte RB2.
5) Transmit a byte of all zeros ($00 HEX) and simulta-
neously receive byte RB3.
6) Pull CS on the MAX186/MAX188 high.
Figure 6 shows the timing for this sequence. Bytes RB2
and RB3 will contain the result of the conversion
padded with one leading zero and three trailing zeros.
The total conversion time is a function of the serial
clock frequency and the amount of dead time between
8-bit transfers. Make sure that the total conversion time
does not exceed 120s, to avoid excessive T/H droop.
Digital Output
In unipolar input mode, the output is straight binary
(see Figure 15). For bipolar inputs, the output is
twos-complement (see Figure 16). Data is clocked out
at the falling edge of SCLK in MSB-first format.
Low-Power, 8-Channel,
Serial 12-Bit ADCs
Maxim Integrated
11
MAX186/MAX188
SEL2
SEL1
SEL0
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
AGND
00
0
+
10
0
+
00
1
+
10
1
+
01
0
+
11
0
+
01
1
+
11
1
+
Table 3. Channel Selection in Single-Ended Mode (SGL/D
DIIF
FF
F = 1)
SEL2
SEL1
SEL0
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
00
0
+
00
1
+
01
0
+
01
1
+–
10
0
+
10
1
+
11
0
+
11
1
–+
Table 4. Channel Selection in Differential Mode (SGL/D
DIIF
FF
F = 0)
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