参数资料
| 型号： | AD5315BRM |
| 厂商： | Analog Devices Inc |
| 文件页数： | 10/24页 |
| 文件大小： | 0K |
| 描述： | IC DAC 10BIT 2WIRE I2C 10-MSOP |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 50 |
| 设置时间： | 6µs |
| 位数： | 10 |
| 数据接口： | I²C，串行 |
| 转换器数目： | 4 |
| 电压电源： | 单电源 |
| 功率耗散（最大）： | 5mW |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 管件 |
| 输出数目和类型： | 4 电压，单极；4 电压，双极 |
| 采样率（每秒）： | 143k |
AD5305/AD5315/AD5325
Rev. G | Page 18 of 24
SCL
SDA
SCL
SDA
NOTE: DATA BYTES ARE THE SAME AS THOSE IN THE WRITE SEQUENCE EXCEPT THAT DON’T CARES ARE READ BACK AS 0s.
SCL
SDA
ADDRESS BYTE
POINTER BYTE
ACK
BY
AD53x5
START
COND
BY
MASTER
ACK
BY
AD53x5
MSB
LSB
0
1
0
A0
R/W
X
DATA BYTE
ACK
BY
AD53x5
ADDRESS BYTE
MSB
LSB
ACK
BY
MASTER
0
1
0
A0
R/W
MSB
LSB
NO
ACK
BY
MASTER
REPEATED
START
COND
BY
MASTER
STOP
COND
BY
MASTER
LEAST SIGNIFICANT DATA BYTE
00
93
0-
0
3
4
Figure 34. Readback Sequence
DOUBLE-BUFFERED INTERFACE
The AD5305/AD5315/AD5325 DACs have double-buffered
interfaces consisting of two banks of registers—input registers
and DAC registers. The input register is directly connected to the
input shift register and the digital code is transferred to the relevant
input register on completion of a valid write sequence. The DAC
register contains the digital code used by the resistor string.
Access to the DAC register is controlled by the LDAC bit. When
the LDAC bit is set high, the DAC register is latched and,
therefore, the input register can change state without affecting
the contents of the DAC register. However, when the LDAC bit
is set low, the DAC register becomes transparent and the
contents of the input register are transferred to it.
This is useful if the user requires simultaneous updating of all
DAC outputs. The user can write to three of the input registers
individually and then, by setting the LDAC bit low when
writing to the remaining DAC input register, all outputs update
simultaneously.
These parts contain an extra feature whereby the DAC register
is not updated unless its input register has been updated since
the last time that LDAC was brought low. Normally, when
LDAC is brought low, the DAC registers are filled with the
contents of the input registers. In the case of the AD5305/AD5315/
AD5325, the part updates the DAC register only if the input
register has been changed since the last time the DAC register
was updated, thereby removing unnecessary digital crosstalk.
POWER-DOWN MODES
The AD5305/AD5315/AD5325 have very low power consumption,
dissipating typically 1.5 mW with a 3 V supply and 3 mW with
a 5 V supply. Power consumption can be further reduced when
the DACs are not in use by putting them into one of three
power-down modes, which are selected by Bit 15 and Bit 14
(PD1 and PD0) of the data byte. Table 8 shows how the state of
the bits corresponds to the mode of operation of the DAC.
Table 8. PD1/PD0 Operating Modes
PD1
PD0
Operating Mode
0
Normal Operation
0
1
Power-Down (1 kΩ load to GND)
1
0
Power-Down (100 kΩ load to GND)
1
Power-Down (three-state output)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5315BRM-REEL | 制造商:Analog Devices 功能描述:DAC 4-CH Resistor-String 10-bit 10-Pin MSOP T/R 制造商:Analog Devices 功能描述:DAC QUAD RES-STRING 10-BIT 10MSOP - Tape and Reel |
| AD5315BRM-REEL7 | 功能描述:IC DAC 10BIT 2WIRE I2C 10-MSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色产品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 标准包装:91 系列:- 设置时间:4µs 位数:10 数据接口:MICROWIRE?，串行，SPI? 转换器数目:8 电压电源:单电源 功率耗散（最大）:2.7mW 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-WFDFN 裸露焊盘 供应商设备封装:14-DFN-EP（4x3） 包装:管件 输出数目和类型:8 电压，单极 采样率（每秒）:* |
| AD5315BRMZ | 功能描述:IC DAC 10BIT 2WIRE I2C 10-MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 设置时间:4µs 位数:12 数据接口:串行 转换器数目:2 电压电源:单电源 功率耗散（最大）:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-uMAX 包装:管件 输出数目和类型:2 电压，单极 采样率（每秒）:* 产品目录页面:1398 (CN2011-ZH PDF) |
| AD5315BRMZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:2.5 V to 5.5 V, 500 ??A, 2-Wire Interface Interface |
| AD5315BRMZ-REEL | 功能描述:IC DAC 10BIT 2WIRE I2C 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色产品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 标准包装:91 系列:- 设置时间:4µs 位数:10 数据接口:MICROWIRE?，串行，SPI? 转换器数目:8 电压电源:单电源 功率耗散（最大）:2.7mW 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-WFDFN 裸露焊盘 供应商设备封装:14-DFN-EP（4x3） 包装:管件 输出数目和类型:8 电压，单极 采样率（每秒）:* |
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