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参数资料
| 型号： | MAX149BEAP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/23页 |
| 文件大小： | 0K |
| 描述： | IC ADC 10BIT 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： | 10 |
| 采样率（每秒）： | 133k |
| 数据接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 640mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°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 |
+2.7V to +5.25V, Low-Power, 8-Channel,
Serial 10-Bit ADCs
MAX148/MAX149
2
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, REFADJ 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 = +70NC)
PDIP (derate 11.11mW/NC above +70NC) ...................889mW
SSOP (derate 8.00mW/NC above +70NC) ....................640mW
Operating Temperature Ranges
MAX148_C_P/MAX149_C_P .............................. 0NC to +70NC
MAX148_E_P/MAX149_E_P ............................ -40NC to +85NC
MAX149BMAP............................................... -55NC to +125NC
Storage Temperature Range............................ -60NC to +150NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+260NC
ELECTRICAL CHARACTERISTICS
(VDD = +2.7V to +5.25V; COM = 0; fSCLK = 2.0MHz; external clock (50% duty cycle); 15 clocks/conversion cycle (133ksps);
MAX149—4.7FF capacitor at VREF pin; MAX148—external reference, VREF = 2.500V applied to VREF pin; TA = TMIN to TMAX, unless
otherwise noted.)
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DC ACCURACY (Note 1)
Resolution
10
Bits
Relative Accuracy (Note 2)
INL
MAX14_A
±0.5
LSB
MAX14_B
±1.0
Differential Nonlinearity
DNL
No missing codes over temperature
±1
LSB
Offset Error
MAX14_A
±0.15
±1
LSB
MAX14_B
±0.15
±2
Gain Error (Note 3)
MAX14_A
±1
LSB
MAX14_B
±2
Gain Temperature Coefficient
±0.25
ppm/
°C
Channel-to-Channel Offset
Matching
±0.05
LSB
DYNAMIC SPECIFICATIONS (10kHz Sine-Wave Input, 0 to 2.500VP-P, 133ksps, 2.0MHz External Clock, Bipolar Input Mode)
Signal-to-Noise + Distortion
Noise
SINAD
66
dB
Total Harmonic Distortion
THD
Up to the 5th harmonic
-70
dB
Spurious-Free Dynamic Range
SFDR
70
dB
Channel-to-Channel Crosstalk
65kHz, 2.500VP-P (Note 4)
-75
dB
Small-Signal Bandwidth
-3dB rolloff
2.25
MHz
Full-Power Bandwidth
1.0
MHz
CONVERSION RATE
Conversion Time (Note 5)
tCONV
Internal clock, SHDN = unconnected
5.5
7.5
μs
Internal clock, SHDN = VDD
35
65
External clock = 2MHz, 12 clocks/
conversion
6
Track/Hold Acquisition Time
tACQ
1.5
μs
Aperture Delay
30
ns
Aperture Jitter
< 50
ps
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX149BEAP-TG071 | 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 |
| MAX149BEPP | 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 |
| MAX149BEPP+ | 功能描述:模数转换器 - ADC 10-Bit 8Ch 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 |
| MAX149BMAP/PR | 功能描述:模数转换器 - ADC 10-Bit 8Ch 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 |
| MAX149BMAP/PR2 | 制造商:Maxim Integrated Products 功能描述:A/D CONVERTER, 10-BIT, SERIAL, 8-CHANNEL - Rail/Tube |
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