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参数资料
| 型号： | AD5312BRMZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 8/24页 |
| 文件大小： | 0K |
| 描述： | IC DAC 10BIT DUAL R-R 10-MSOP |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 1,000 |
| 设置时间： | 6µs |
| 位数： | 10 |
| 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）： | 2.5mW |
| 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： | 带卷 (TR) |
| 输出数目和类型： | 2 电压，单极；2 电压，双极 |
| 采样率（每秒）： | 143k |
AD5302/AD5312/AD5322
Rev. D | Page 16 of 24
POWER-DOWN MODES
The AD5302/AD5312/AD5322 have very low power consump-
tion, dissipating only 0.7 mW with a 3 V supply and 1.5 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 13 and Bit 12
(PD1 and PD0) of the control word. Table 7 shows how the
state of the bits corresponds to the mode of operation of that
particular DAC.
Table 7. PD1/PD0 Operating Modes
PD1
PDO
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 (High Impedance Output)
When both bits are set to 0, the DACs work normally with
their normal power consumption of 300 μA at 5 V. However,
for the three power-down modes, the supply current falls to
200 nA at 5 V (50 nA at 3 V). Not only does the supply current
drop, but the output stage is also internally switched from the
output of the amplifier to a resistor network of known values.
This has the advantage that the output impedance of the part is
known while the part is in power-down mode and provides a
defined input condition for whatever is connected to the output
of the DAC amplifier. There are three different options.
The output is connected internally to GND through a
1 kΩ resistor,
The output is connected internally to GND through a
100 kΩ resistor, or
The output is left open-circuited (three-state).
The output stage is illustrated in Figure 33.
The bias generator, the output amplifier, the resistor string,
and all other associated linear circuitry are shut down when
the power-down mode is activated. However, the contents of
the registers are unaffected when in power-down. The time to
exit power-down is typically 2.5 μs for VDD = 5 V and 5 μs when
RESISTOR-
STRING DAC
AMPLIFIER
VOUT
00
92
8-
03
3
POWER-DOWN
CIRCUITRY
RESISTOR
NETWORK
Figure 33. Output Stage During Power-Down
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5312WARMZ-REEL7 | 制造商:Analog Devices 功能描述:AUTO VERSION! 2.5 V TO 5.5 V, 230 ?A, DUAL RAIL-TO-RAIL VOLT - Tape and Reel 制造商:Analog Devices 功能描述:ANAAD5312WARMZ-REEL7 DUAL 10-BIT VOLTAGE |
| AD5313 | 制造商:AD 制造商全称:Analog Devices 功能描述:2.5 V to 5.5 V, 500 uA, Parallel Interface Quad Voltage-Output 8-/10-/12-Bit DACs |
| AD5313ARU | 制造商:Analog Devices 功能描述:DAC 2-CH Resistor-String 10-bit 16-Pin TSSOP 制造商:Rochester Electronics LLC 功能描述:DUAL 10-BIT VOLTAGE OUT DAC I.C. - Bulk |
| AD5313ARU-REEL7 | 制造商:Analog Devices 功能描述:DAC 2-CH Resistor-String 10-bit 16-Pin TSSOP T/R 制造商:Rochester Electronics LLC 功能描述:DUAL 10-BIT VOLTAGE OUT DAC I.C. - Tape and Reel |
| AD5313ARUZ | 功能描述:IC DAC 10BIT DUAL R-R 16-TSSOP 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) |
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