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參數(shù)資料
| 型號： | MAX144BEUA+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 12BIT 108KSPS 8-UMAX |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 108k |
| 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）： | 330mW |
| 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： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應商設備封裝： | 8-uMAX |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 2 個單端，單極 |
MAX144/MAX145
+2.7V, Low-Power, 2-Channel, 108ksps,
Serial 12-Bit ADCs in 8-Pin MAX
6
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VDD = +3.0V, VREF = 2.5V, 0.1F at REF, fSCLK = 2.17MHz, 16 clocks/conversion cycle (108ksps), CH- = GND for MAX145, TA = +25°C,
unless otherwise noted.)
Pin Description
External Reference Voltage Input. Sets the analog voltage range. Bypass with a 100nF capacitor close to
the device.
REF
5
Active-Low Chip-Select Input/Active-High Shutdown Input. Pulling CS/SHDN high puts the device into
shutdown with a maximum current of 5A.
CS/SHDN
6
Serial Data Output. Data changes state at SCLK’s falling edge. High impedance when CS/SHDN
is high.
DOUT
7
Serial Clock Input. DOUT changes on the falling edge of SCLK.
SCLK
8
Analog and Digital Ground
GND
4
Analog Input: MAX144 = single-ended (CH1); MAX145 = differential (CH-)
CH1 (CH-)
3
PIN
Analog Input: MAX144 = single-ended (CH0); MAX145 = differential (CH+)
CH0 (CH+)
2
Positive Supply Voltage, +2.7V to +5.25V
VDD
1
FUNCTION
NAME
-0.20
-0.10
-0.15
0
-0.05
0.05
0.10
0.15
0.20
0
1024
2048
3072
4096
INTEGRAL NONLINEARITY
vs. OUTPUT CODE
MAX144/5-10
OUTPUT CODE
INL
(LSB)
0
0.1
0.2
0.3
0.4
0.5
2.5
3.5
3.0
4.0
4.5
5.0
5.5
INTEGRAL NONLINEARITY
vs. SUPPLY VOLTAGE
MAX144/5-11
VDD (V)
INL
(LSB)
0
0.1
0.2
0.3
0.4
0.5
INTEGRAL NONLINEARITY
vs. TEMPERATURE
MAX144/5-12
INL
(LSB)
TEMPERATURE (°C)
-60
-10
15
-35
40
65
90
115 140
-140
-100
-120
-60
-80
-40
-20
0
20
027
54
FFT PLOT
MAX144/5-13
FREQUENCY (kHz)
AMPLITUDE
(dB)
VDD = +2.7V
fIN = 10kHz
fSAMPLE = 108ksps
12.0
11.0
1
10
100
EFFECTIVE NUMBER OF BITS
vs. FREQUENCY
11.2
MAX144/5-14
FREQUENCY (kHz)
EFFECTIVE
NUMBER
OF
BITS
11.4
11.6
11.8
VDD = +2.7V
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