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| 型号： | AD5624BCPZ-R2 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/24页 |
| 文件大小： | 0K |
| 描述： | IC DAC NANO 12BIT QUAD 10-LFCSP |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 1 |
| 系列： | nanoDAC™ |
| 设置时间： | 3µs |
| 位数： | 12 |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 4 |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘，CSP |
| 供应商设备封装： | 10-LFCSP-WD（3x3） |
| 包装： | 标准包装 |
| 输出数目和类型： | 4 电压，单极；4 电压，双极 |
| 采样率（每秒）： | 287k |
| 其它名称： | AD5624BCPZ-R2DKR |
AD5624/AD5664
Rev. 0 | Page 17 of 24
SOFTWARE RESET
The AD5624/AD5664 contain a software reset function.
Command 110 is reserved for the software reset function (see
Table 7). The software reset command contains two reset modes
that are software programmable by setting Bit DB0 in the
control register. Table 9 shows how the state of the bit
corresponds to the software reset modes of operation of the
devices.
Table 9. Software Reset Modes for the AD5624/AD5664
DB0
Registers Reset to Zero
0
DAC register
Input shift register
1 (Power-On Reset)
DAC register
Input shift register
LDAC register
Power-down register
POWER-DOWN MODES
The AD5624/AD5664 contain four separate modes of operation.
Command 100 is reserved for the power-down function (see
Table 7). These modes are software programmable by setting two
bits (DB5 and DB4) in the control register. Table 10 shows how
the state of the bits corresponds to the mode of operation of the
device. All DACs (DAC D to DAC A) can be powered down to
the selected mode by setting the corresponding four bits (DB3,
DB2, DB1, and DB0) to 1. By executing the same Command 100,
any combination of DACs is powered up by setting Bit DB5 and
Bit DB4 to normal operation mode. To select which combination
of DAC channels to power-up, set the corresponding four bits
(DB3, DB2, DB1, and DB0) to 1. See Table 11 for contents of the
input shift register during the power-down/power-up operation.
Table 10. Modes of Operation for the AD5624/AD5664
DB5
DB4
Operating Mode
0
Normal operation
Power-down modes
0
1
1 kΩ to GND
1
0
100 kΩ to GND
1
Three-state
When both bits are set to 0, the parts work normally with their
normal power consumption of 450 μA at 5 V. However, for the
three power-down modes, the supply current falls to 480 nA at
5 V (200 nA at 3 V). Not only does the supply current fall, but
the output stage is also internally switched from the output of
the amplifier to a resistor network of known values. This allows
the output impedance of the part to be known while the part is
in power-down mode.
The outputs can either be connected internally to GND through
a 1 kΩ or 100 kΩ resistor, or left open-circuited (three-state)
(see Figure 34).
RESISTOR
NETWORK
VOUT
RESISTOR
STRING DAC
POWER-DOWN
CIRCUITRY
AMPLIFIER
05
94
3-
0
37
Figure 34. Output Stage During Power-Down
The bias generator, the output amplifier, the resistor string, and
other associated linear circuitry are shut down when power-
down mode is activated. However, the contents of the DAC
register are unaffected when in power-down. The time to exit
power-down is typically 4 μs for VDD = 5 V and for VDD = 3 V
(see Figure 21).
Table 11. 24-Bit Input Shift Register Contents of Power-Down/Power-Up Operation
DB23 to
DB22 (MSB)
DB21
DB20
DB19
DB18
DB17
DB16
DB15
to DB6
DB5
DB4
DB3
DB2
DB1
DB0
(LSB)
x
1
0
x
PD1
PD0
DAC D
DAC C
DAC B
DAC A
Don’t care
Command bits (C2 to C0)
Address bits (A2 to A0); don’t
care
Don’t
care
Power-
down mode
Power-down/power-up channel
selection, set bit to 1 to select
channel
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| AD5624BRMZ | 功能描述:IC DAC NANO 12BIT QUAD 10-MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:nanoDAC™ 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) |
| AD5624BRMZ | 制造商:Analog Devices 功能描述:12BIT DAC NANO QUAD SMD MSOP10 |
| AD5624BRMZ | 制造商:Analog Devices 功能描述:D/A Converter (D-A) IC |
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