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| 型号： | MX574AJCWI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 18/18页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT W/REF 28-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 25 |
| 位数： | 12 |
| 采样率（每秒）： | 40k |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 265mW |
| 电压电源： | 双 ± |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC W |
| 包装： | 管件 |
| 输入数目和类型： | 2 个单端，单极；2 个单端，双极 |
Maxim Integrated Products 9
MAX174/MX574A/MX674A
Industry-Standard, Complete 12-Bit ADCs
Table 1. Truth Table
After the conversion is completed, data can be obtained
by the microprocessor. The ADCs have the required
logic for 8-, 12-, and 16-bit bus interfacing, which is
determined by the 12/8 input. If 12/8 is high, the ADCs
are configured for a 16-bit bus. Data lines D0–D11 may
be connected to the bus as either the 12 MSBs or the 12
LSBs. The other 4 bits must be masked out in software.
For 8-bit bus operation, 12/8 is set low. The format is left
justified, and the even address, A0 low, contains the 8
MSBs. The odd address, A0 high, contains the 4 LSBs,
which is followed by 4 trailing 0s. There is no need to
use a software mask when the ADCs are connected to
an 8-bit bus.
Note that the output cannot be forced to a right-justified for-
mat by rearranging the data lines on the 8-bit bus interface.
Figure 3. Analog Equivalent Circuit
Table 2. MAX174/MX574A/MX674A Data
Format for 8-Bit Bus
CE
CS
R/C
12/8
A0
OPERATION
0
X
None
X
1
X
None
1
0
X
0
Initiate 12-bit conversion
1
0
X
1
Initiate 12-bit conversion
1
0
1
X
Enable 12-bit conversion
1
0
1
0
Enable 8 MSBs
1
0
1
0
1
Enable 4 LSBs + 4
trailing 0s
D7
D6
D5
D4
D3
D2
D1
D0
High Byte
(A0 = 0)
MSB
D10
D9
D8
D7
D6
D5
D4
Low Byte
(A0 = 1)
D3
D2
D1
D0
0
R*
2R* -50I
5kI
9.950kI
5kI
1.6kI
BIPOFF
10VIN
20VIN
REFIN
SAR
2.5kI
DAC
REFIN
2
27 (MSB)
26 (D10)
25 (D9)
24 (D8)
23 (D7)
22 (D6)
21 (D5)
20 (D4)
19 (D3)
18 (D2)
17 (D1)
16 (LSB)
HARDWIRING FOR 8-BIT DATA BUSES
D7
D6
D5
D4
D3
D2
D1
D0
DATA
BU
S
MAX174
MX574A
MX674A
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MX574AJCWI+ | 功能描述:模数转换器 - ADC 12-Bit 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 |
| MX574AJCWI+T | 功能描述:模数转换器 - ADC 12-Bit 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 |
| MX574AJCWI-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 |
| MX574AJD | 功能描述:模数转换器 - ADC 12-Bit 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 |
| MX574AJEPI | 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 |
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