参数资料
型号: MAX1246EVKIT
厂商: Maxim Integrated Products
文件页数: 19/25页
文件大小: 0K
描述: EVALUATION KIT FOR MAX1246
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
ADC 的数量: 1
位数: 12
采样率(每秒): 133k
数据接口: 串行
输入范围: ±VREF/2
在以下条件下的电源(标准): 3.6mW @ 133kSPS
工作温度: 0°C ~ 70°C
已用 IC / 零件: MAX1246
已供物品: 板,CD
MAX1246/MAX1247
+2.7V, Low-Power, 4-Channel,
Serial 12-Bit ADCs in QSOP-16
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +2.7V to +3.6V (MAX1246); VDD = +2.7V to +5.25V (MAX1247); COM = 0V; fSCLK = 2.0MHz; external clock (50% duty cycle);
15 clocks/conversion cycle (133ksps); MAX1246—4.7F capacitor at VREF pin; MAX1247—external reference, VREF = 2.5V applied
to VREF pin; TA = TMIN to TMAX; unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CONVERSION RATE
Internal clock, SHDN = FLOAT
5.5
7.5
Internal clock, SHDN = VDD
35
65
Conversion Time (Note 5)
tCONV
External clock = 2MHz, 12 clocks/
conversion
6
s
Track/Hold Acquisition Time
tACQ
1.5
s
Aperture Delay
30
ns
Aperture Jitter
<50
ps
SHDN = FLOAT
1.8
Internal Clock Frequency
SHDN = VDD
0.225
MHz
0.1
2.0
External Clock Frequency
Data transfer only
0
2.0
MHz
ANALOG/COM INPUTS
Unipolar, COM = 0V
0 to VREF
Input Voltage Range, Single-
Ended and Differential (Note 6)
Bipolar, COM = VREF / 2
±VREF / 2
V
Multiplexer Leakage Current
On/off leakage current, VCH_ = 0V or VDD
±0.01
±1
A
Input Capacitance
16
pF
INTERNAL REFERENCE (MAX1246 only, reference buffer enabled)
VREF Output Voltage
TA = +25°C
2.480
2.500
2.520
V
VREF Short-Circuit Current
30
mA
MAX1246_C
±30
±50
MAX1246_E
±30
±60
VREF Temperature Coefficient
MAX1246_M
±30
±80
ppm/°C
Load Regulation (Note 8)
0mA to 0.2mA output load
±0.35
mV
Internal compensation mode
0
Capacitive Bypass at VREF
External compensation mode
4.7
F
Capacitive Bypass at REFADJ
0.047
F
REFADJ Adjustment Range
VBST = VLX = VIN = 28V, VFB = 1.5V
±1.5
%
EXTERNAL REFERENCE AT VREF (Buffer disabled)
VREF Input Voltage Range
(Note 9)
1.0
VDD +
50mV
V
VREF Input Current
VREF = 2.5V
100
150
V
VREF Input Resistance
18
25
k
Shutdown VREF Input Current
0.01
100
A
REFADJ Buffer Disable
Threshold
VDD -
0.5
V
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MAX1247ACEE+ 功能描述:模数转换器 - ADC 12-Bit 4Ch 133ksps 5.25V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1247ACEE+T 功能描述:模数转换器 - ADC 12-Bit 4Ch 133ksps 5.25V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1247ACEE-T 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32