参数资料
型号: MAX1245BCAP+T
厂商: Maxim Integrated Products
文件页数: 12/21页
文件大小: 0K
描述: IC ADC 12BIT SERIAL 20-SSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,000
位数: 12
采样率(每秒): 100k
数据接口: MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 2.4mW
电压电源: 单电源
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 20-SSOP(0.209",5.30mm 宽)
供应商设备封装: 20-SSOP
包装: 带卷 (TR)
输入数目和类型: 8 个单端,单极;8 个单端,双极;4 个差分,单极;4 个差分,双极
MAX1245
+2.375V, Low-Power, 8-Channel,
Serial 12-Bit ADC
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD = +2.375V to +3.3V, VCOM = 0V, fCLK = 1.5MHz, external clock (50% duty cycle), 15 clocks/conversion cycle (100ksps),
VREF = 2.048V applied to VREF pin, TA = TMIN to TMAX, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VDD to AGND, DGND .............................................. -0.3V to +6V
AGND to DGND.................................................... -0.3V to +0.3V
CH0–CH7, COM to AGND, DGND ............ -0.3V to (VDD + 0.3V)
VREF to AGND........................................... -0.3V to (VDD + 0.3V)
Digital Inputs to DGND............................................ -0.3V to +6V
Digital Outputs to DGND ........................... -0.3V to (VDD + 0.3V)
Digital Output Sink Current .................................................25mA
Continuous Power Dissipation (TA = +70°C)
Plastic DIP (derate 11.11mW/°C above +70°C) ......... 889mW
SSOP (derate 8.00mW/°C above +70°C) ................... 640mW
CERDIP (derate 11.11mW/°C above +70°C) .............. 889mW
Operating Temperature Ranges
MAX1245_C_P ................................................... 0°C to +70°C
MAX1245_E_P ................................................ -40°C to +85°C
Storage Temperature Range ............................ -60°C to +150°C
Lead Temperature (soldering, 10sec) ............................ +300°C
8
s
35
65
tCONV
Conversion Time (Note 5)
5.5
7.5
MHz
1.0
Full-Power Bandwidth
MHz
2.25
Small-Signal Bandwidth
dB
-85
Channel-to-Channel Crosstalk
dB
76
SFDR
Spurious-Free Dynamic Range
dB
-76
THD
Total Harmonic Distortion
dB
68
SINAD
Signal-to-Noise + Distortion Ratio
LSB
±0.2
Channel-to-Channel Offset
Matching
ppm/°C
±0.25
Gain Temperature Coefficient
±0.5
Bits
12
Resolution
LSB
Gain Error (Note 3)
±0.5
±4
LSB
±1.0
INL
Relative Accuracy (Note 2)
LSB
±1
DNL
LSB
±0.5
±4
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
External clock = 1.5MHz, 12 clocks/conversion
Internal clock, SHDN = VDD
Internal clock, SHDN = open
MAX1245A
-3dB rolloff
50kHz, 2Vp-p (Note 4)
Up to the 5th harmonic
MAX1245B
No missing codes over temperature
CONDITIONS
Differential Nonlinearity
ns
40
Aperture Delay
MHz
1.5
SHDN = open
ps
<50
Aperture Jitter
MHz
0.1
1.5
s
2.0
tACQ
Track/Hold Acquisition Time
External clock = 1.5MHz
0.225
Internal Clock Frequency
SHDN = VDD
0
1.5
External Clock Frequency
Data transfer only
DC ACCURACY (Note 1)
DYNAMIC SPECIFICATIONS (10kHz sine-wave input, 0Vp-p to 2.048Vp-p, 100ksps, 1.5MHz external clock, bipolar input mode)
CONVERSION RATE
Offset Error
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