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参数资料
| 型号： | MAX187CEPA+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 13/18页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT SERIAL LP 8-DIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 位数： | 12 |
| 采样率（每秒）： | 75k |
| 数据接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 500mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
| 输入数目和类型： | 1 个单端，单极 |
MAX187/MAX189
+5V, Low-Power, 12-Bit Serial ADCs
4
Maxim Integrated
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +5V ±5%; VGND = 0V; unipolar input mode; 75ksps, fCLK = 4.0MHz, external clock (50% duty cycle); MAX187—internal refer-
ence: VREF = 4.096V, 4.7F capacitor at REF pin, or MAX189—external reference: VREF = 4.096V applied to REF pin, 4.7F capacitor
at REF pin; TA = TMIN to TMAX; unless otherwise noted.)
TIMINg CHARACTERISTICS
(VDD = +5V ±5%, TA = TMIN to TMAX; unless otherwise noted.)
Note 1: Tested at VDD = +5V.
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: MAX187—internal reference, offset nulled; MAX189–external +4.096V reference, offset nulled. Excludes reference errors.
Note 4: Guaranteed by design. Not subject to production testing.
Note 5: External load should not change during conversion for specified ADC accuracy.
Note 6: DC test, measured at 4.75V and 5.25V only.
Note 7: To guarantee acquisition time, tACQ is the maximum time the device takes to acquire the signal, and is also the minimum-
time needed for the signal to be acquired.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
uNITS
DIgITAL OuTPuT (DOuT)
Output Voltage Low
VOL
ISINK = 5mA
0.4
V
ISINK = 16mA
0.3
Output Voltage High
VOH
ISOURCE = 1mA
4
V
Three-State Leakage Current
IL
VCS = 5V
Q
10
F
A
Three-State Output Capacitance
COUT
VCS = 5V (Note 4)
15
pF
POWER REQuIREMENTS
Supply Voltage
VDD
4.75
5.25
V
Supply Current
IDD
Operating mode
MAX187
1.5
2.5
mA
MAX189
1.0
2.0
Power-down mode
2
10
F
A
Power-Supply Rejection
PSR
VDD = +5V Q5%; external reference,
4.096V; full-scale input (Note 6)
Q
0.06
Q
0.5
mV
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
uNITS
Track/Hold Acquisition Time
tACQ
CS = high (Note7)
1.5
s
SCLK Fall to Output Data Valid
tDQ
CLOAD = 100pF
MAX18_ _C/E
20
150
ns
MAX18_ _M
20
200
CS Fall to Output Enable
tDV
CLOAD = 100pF
100
ns
CS Rise to Output Disable
tTR
CLOAD = 100pF
100
ns
SCLK Clock Frequency
tSCLK
5
MHz
SCLK Pulse Width High
tCH
100
ns
SCLK Pulse Width Low
tCL
100
ns
SCLK Low to CS Fall Setup Time
tCSO
50
ns
CS Pulse Width
tCS
500
ns
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX187CEPA+ | 功能描述:模数转换器 - ADC 12-Bit 75ksps 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 |
| MAX187CEWE | 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 |
| MAX187CEWE+ | 功能描述:模数转换器 - ADC 12-Bit 75ksps 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 |
| MAX187CEWE+T | 功能描述:模数转换器 - ADC 12-Bit 75ksps 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 |
| MAX187CEWE-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 |
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