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参数资料
| 型号： | MAX1245ACAP+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/21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： | 66 |
| 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： | 管件 |
| 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
4
_______________________________________________________________________________________
TIMING CHARACTERISTICS
(VDD = +2.375V to +3.3V, VCOM = 0V, TA = TMIN to TMAX, unless otherwise noted.)
Note 1:
Tested at VDD = +2.375V; VCOM = 0V; unipolar single-ended input mode.
Note 2:
Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range has
been calibrated.
Note 3:
External reference (VREF = +2.048V), offset nulled.
Note 4:
Ground “on” channel; sine wave applied to all “off” channels.
Note 5:
Conversion time defined as the number of clock cycles multiplied by the clock period; clock has 50% duty cycle.
Note 6:
The common-mode range for the analog inputs is from AGND to VDD.
Note 7:
Guaranteed by design. Not subject to production testing.
Note 8:
ADC performance is limited by the converter’s noise floor, typically 300Vp-p.
Note 9:
Measured as
|VFS(2.375V) - VFS(3.3V)|.
DIN to SCLK Setup
ns
400
tSTR
CS Rise to SSTRB Output Disable
ns
240
tSDV
CS Fall to SSTRB Output Enable
260
tSSTRB
SCLK Fall to SSTRB
ns
300
tCL
SCLK Pulse Width Low
ns
300
SCLK Pulse Width High
ns
0
CS to SCLK Rise Hold
ns
200
tCSS
CS to SCLK Rise Setup
ns
400
tTR
CS Rise to Output Disable
ns
240
tDV
CS Fall to Output Enable
tDO
SCLK Fall to Output Data Valid
ns
0
tDH
DIN to SCLK Hold
ns
s
2.0
tACQ
Acquisition Time
0
tSCK
SSTRB Rise to SCLK Rise
ns
200
tDS
UNITS
MIN
TYP
MAX
SYMBOL
Internal clock mode only (Note 7)
External clock mode only, Figure 2
External clock mode only, Figure 1
Figure 1
Figure 2
Figure 1
CONDITIONS
Figure 1
ns
20
260
tCSH
tCH
__________________________________________Typical Operating Characteristics
(VDD = 2.5V, VREF = 2.048V, fCLK = 1.5MHz, CLOAD = 20pF, TA = +25°C, unless otherwise noted.)
ns
1.25
2.375
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
1.00
VDD (V)
I DD
(mA)
2.875
0.75
0.50
3.375
3.125
2.625
RL =
∞
CODE = 101010100000
MAX1245-01
CLOAD = 50pF
CLOAD = 20pF
0.90
0.65
-55
-30
70
SUPPLY CURRENT
vs. TEMPERATURE
0.85
0.80
0.75
0.70
TEMPERATURE (
°C)
I DD
(mA)
20
145
120
-5
45
95
MAX1245-02
RL =
∞
CODE = 101010100000
0.50
0.00
INTEGRAL NONLINEARITY
vs. SUPPLY VOLTAGE
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
VDD (V)
INL
(LSB)
MAX1245-03
2.375
2.875
3.375
3.125
2.625
PARAMETER
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相关代理商/技术参数 |
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| MAX1245ACAP+ | 功能描述:模数转换器 - ADC 10-Bit 8Ch 100ksps 3.3V 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 |
| MAX1245ACAP+T | 功能描述:模数转换器 - ADC 10-Bit 8Ch 100ksps 3.3V 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 |
| MAX1245ACAP-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 |
| MAX1245ACPP | 功能描述:模数转换器 - ADC Integrated Circuits (ICs) 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 |
| MAX1245ACPP+ | 功能描述:模数转换器 - ADC 10-Bit 8Ch 100ksps 3.3V 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 |
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