參數資料
型號: MAX1241AESA+T
廠商: Maxim Integrated Products
文件頁數: 13/15頁
文件大?。?/td> 0K
描述: IC ADC 12BIT SERIAL 8-SOIC
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 2,500
位數: 12
采樣率(每秒): 73k
數據接口: MICROWIRE?,QSPI?,串行,SPI?
轉換器數目: 1
功率耗散(最大): 471mW
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-SOIC(0.154",3.90mm 寬)
供應商設備封裝: 8-SOIC
包裝: 帶卷 (TR)
輸入數目和類型: 1 個單端,單極
MAX1240/MAX1241
+2.7V, Low-Power,
12-Bit Serial ADCs in 8-Pin SO
_______________________________________________________________________________________
7
_______________________________________________________________________Pin Description
6
DOUT
Serial Data Output. Data changes state at SCLK’s falling edge. DOUT is high impedance when CS is
high.
8
SCLK
3
SHDN
Three-Level Shutdown Input. Pulling SHDN low shuts the MAX1240/MAX1241 down to 15A (max)
supply current. Both the MAX1240 and MAX1241 are fully operational with either SHDN high or
unconnected. For the MAX1240, pulling SHDN high enables the internal reference, and letting SHDN
open disables the internal reference and allows for the use of an external reference.
4
REF
Reference Voltage for Analog-to-Digital Conversion. Internal 2.5V reference output for MAX1240;
bypass with 4.7F capacitor. External reference voltage input for MAX1241, or for MAX1240 with the
internal reference disabled. Bypass REF with a minimum of 0.1F when using an external reference.
7
CS
Active-Low Chip Select initiates conversions on the falling edge. When CS is high, DOUT is high
impedance.
5
GND
Analog and Digital Ground
2
AIN
Sampling Analog Input, 0V to VREF range
NAME
FUNCTION
1
VDD
Positive Supply Voltage: 2.7V to 3.6V, (MAX1240); 2.7V to 5.25V (MAX1241)
PIN
Serial Clock Input. SCLK clocks data out at rates up to 2.1MHz.
0.6
INTEGRAL NONLINEARITY
vs. CODE
-0.6
0
-0.2
-0.4
0.4
0.2
MAX1241-11A/NEW
INL
(LSB)
CODE
1024
2048
3072
4096
0
20
-140
0
37.50
FFT PLOT
-120
0
-80
-100
-40
-20
-60
18.75
AMPLITUDE
(dB)
FREQUENCY (kHz)
fAIN = 10kHz, 2.5VP-P
fSAMPLE = 73ksps
MAX1241-TOC12A
____________________________Typical Operating Characteristics (continued)
(VDD = 3.0V, REF = 2.5V, fSCLK = 2.1MHz, CL = 20pF, TA = +25°C, unless otherwise noted.)
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