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参数资料
| 型号： | MAX1138LEEE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/22页 |
| 文件大小： | 0K |
| 描述： | IC ADC 10BIT SERIAL 16-QSOP |
| 标准包装： | 2,500 |
| 位数： | 10 |
| 采样率（每秒）： | 94.4k |
| 数据接口： | I²C，串行 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 3.35mW |
| 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： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 12 个单端，单极；12 个单端，双极；6 个差分，单极；6 个差分，双极 |
MAX1136–MAX1139
Slave Address
A bus master initiates communication with a slave device
by issuing a START condition followed by a slave
address. When idle, the MAX1136–MAX1139 continuous-
ly wait for a START condition followed by their slave
address. When the MAX1136–MAX1139 recognize their
slave address, they are ready to accept or send data.
The slave address has been factory programmed and is
always 0110100 for the MAX1136/MAX1137, and
0110101 for MAX1138/MAX1139 (Figure 7). The least sig-
nificant bit (LSB) of the address byte (R/W) determines
whether the master is writing to or reading from the
MAX1136–MAX1139 (R/W = 0 selects a write condition,
R/W = 1 selects a read condition). After receiving the
address, the MAX1136–MAX1139 (slave) issues an
acknowledge by pulling SDA low for one clock cycle.
Bus Timing
At power-up, the MAX1136–MAX1139 bus timing is set
for fast mode (F/S-mode) which allows conversion rates
up to 22.2ksps. The MAX1136–MAX1139 must operate
in high-speed mode (HS-mode) to achieve conversion
rates up to 94.4ksps. Figure 1 shows the bus timing for
the MAX1136–MAX1139’s 2-wire interface.
HS-Mode
At power-up, the MAX1136–MAX1139 bus timing is set
for F/S-mode. The bus master selects HS-mode by
addressing all devices on the bus with the HS-mode
master code 0000 1XXX (X = don’t care). After success-
fully receiving the HS-mode master code, the
MAX1136–MAX1139 issue a not-acknowledge allowing
SDA to be pulled high for one clock cycle (Figure 8).
After the not-acknowledge, the MAX1136–MAX1139 are
in HS-mode. The bus master must then send a repeated
START followed by a slave address to initiate HS-mode
communication. If the master generates a STOP condi-
tion the MAX1136–MAX1139 returns to F/S-mode.
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel, 2-Wire Serial 10-Bit ADCs
12
______________________________________________________________________________________
01
1
0
R/W
A
SLAVE ADDRESS
MAX1136/MAX1137
S
SCL
SDA
1
2
34
567
89
DEVICE
SLAVE ADDRESS
0110100
0110101
MAX1136/MAX1137
MAX1138/MAX1139
Figure 7. MAX1136/MAX1137 Slave Address Byte
000
1
0X
X
A
HS-MODE MASTER CODE
SCL
SDA
S
Sr
F/S-MODE
HS-MODE
Figure 8. F/S-Mode to HS-Mode Transfer
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1138MEEE | 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 |
| MAX1138MEEE+ | 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 |
| MAX1138MEEE+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 |
| MAX1138MEEE-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 |
| MAX1139 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial 10-Bit ADCs |
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