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| 型号： | AD7732BRUZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 13/32页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT 2-CH 28-TSSOP |
| 标准包装： | 50 |
| 位数： | 24 |
| 采样率（每秒）： | 15.4k |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 100mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 28-TSSOP |
| 包装： | 管件 |
| 输入数目和类型： | 2 个差分，单极；2 个差分，双极 |
| 产品目录页面： | 779 (CN2011-ZH PDF) |
| 配用： | EVAL-AD7732EBZ-ND - BOARD EVAL FOR AD7732 |
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AD7732
Rev. A | Page 20 of 32
Mode Register
8 Bits, Read/Write Register, Address 38h, 3Ah, Default Value 00h
The mode register configures the part and determines its operating mode. Writing to the mode register clears the ADC status register, sets
the RDY pin to a logic high level, exits all current operations, and starts the mode specified by the mode bits.
The AD7732 contains only one mode register. Bit 1 of the address is used for writing to the mode register to specify the channel selected
for the operation determined by the MD2 to MD0 bits. Only the address 38h must be used for reading from the mode register.
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Mnemonic
MD2
MD1
MD0
CLKDIS
DUMP
Cont RD
24/16 BIT
CLAMP
Default
0
Bit
Mnemonic
Description
7–5
MD2–MD0
Mode Bits. These three bits determine the AD7732 operation mode. Writing a new value to the mode bits will
exit the part from the mode in which it has been operating and place it in the newly requested mode
immediately. The function of the mode bits is described in more detail below.
4
CLKDIS
Master Clock Output Disable. When this bit is set to 1, the master clock is disabled from appearing at the
MCLKOUT pin and the MCLKOUT pin is in a high impedance state. This allows turning off the MCLKOUT as a
power saving feature. When using an external clock on MCLKIN, the AD7732 continues to have internal clocks
and will convert normally regardless of the CLKDIS bit state. When using a crystal oscillator or ceramic
resonator across the MCLKIN and MCLKOUT pins, the AD7732 clock is stopped and no conversions can take
place when the CLKDIS bit is active. The AD7732 digital interface can still be accessed using the SCLK pin.
3
DUMP
DUMP Mode. When this bit is reset to 0, the channel status register and channel data register will be
addressed and read separately. When the DUMP bit is set to 1, the channel status register will be followed
immediately by a read of the channel data register regardless of whether the status or data register has been
addressed through the communication register. The continuous read mode will always be dump mode
reading of the channel status and data register, regardless of the dump bit value (see the Digital Interface
Description section for more details).
2
Cont RD
When this bit is set to 1, the AD7732 will operate in the continuous read mode (see the Digital Interface
Description section for more details).
1
24/16 BIT
The Channel Data Register Data Width Selection Bit. When set to 1, the channel data registers will be 24 bits
wide. When set to 0, the channel data registers will be 16 bits wide.
0
CLAMP
This bit determines the channel data register’s value when the analog input voltage is outside the nominal
input voltage range. When the CLAMP bit is set to 1, the channel data register will be digitally clamped either
to all 0s or all 1s when the analog input voltage goes outside the nominal input voltage range. When the
CLAMP bit is reset to 0, the data registers reflect the analog input voltage even outside the nominal voltage
range (see the Analog Input’s Extended Voltage Range section).
MD2
MD1
MD0
Mode
Address Used for Mode Register Write Specifies:
0
Idle Mode
0
1
Continuous Conversion Mode
The First Channel to Start Converting
0
1
0
Single Conversion Mode
Channel to Convert
0
1
Power-Down (Standby) Mode
1
0
ADC Zero-Scale Self-Calibration
Channel Conversion Time Used for the ADC Self-Calibration
1
0
1
For Future Use
1
0
Channel Zero-Scale System Calibration
Channel to Calibrate
1
Channel Full-Scale System Calibration
Channel to Calibrate
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相关代理商/技术参数 |
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| AD7732BRUZ | 制造商:Analog Devices 功能描述:IC 24BIT ADC SMD 7732 TSSOP28 |
| AD7732BRUZ-REEL | 功能描述:IC ADC 24BIT 2CH SIG-DEL 28TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 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:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD7732BRUZ-REEL7 | 功能描述:IC ADC 24BIT 2CH SIG-DEL 28TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 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:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD7734 | 制造商:AD 制造商全称:Analog Devices 功能描述:4-Channel, +-10 V Input Range, High Throughput, 24-Bit sigma ∆ ADC |
| AD7734BRU | 功能描述:IC ADC 24BIT 4-CH 28-TSSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 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:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
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