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參數(shù)資料
| 型號(hào)： | AD5321BRTZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 9/24頁(yè) |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT 2WIRE I2C SOT23-6 |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 標(biāo)準(zhǔn)包裝： | 10,000 |
| 設(shè)置時(shí)間： | 8µs |
| 位數(shù)： | 12 |
| 數(shù)據(jù)接口： | I²C，串行 |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 電壓電源： | 單電源 |
| 功率耗散（最大）： | 1.4mW |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-6 |
| 供應(yīng)商設(shè)備封裝： | SOT-23-6 |
| 包裝： | 帶卷 (TR) |
| 輸出數(shù)目和類型： | 1 電壓，單極；1 電壓，雙極 |
| 采樣率（每秒）： | 125k |
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AD5301/AD5311/AD5321
Rev. B | Page 17 of 24
POWER-DOWN MODES
The AD5301/AD5311/AD5321 have very low power consump-
tion, dissipating typically 0.36 mW with a 3 V supply and 0.75 mW
with a 5 V supply. Power consumption can be further reduced
when the DAC is not in use by putting it into one of three
power-down modes, which are selected by Bit 13 and Bit 12 (PD1
and PD0) of the control word. Table 6 shows how the state of
the bits corresponds to the mode of operation of the DAC.
Table 6. PD1 and 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)
The software power-down modes programmed by PD1 and
PD0 may be overridden by the PD pin on the 8-lead version.
Taking this pin low puts the DAC into three-state power-down
mode. If PD is not used, tie it high.
When both bits are set to 0, the DAC works normally with its
normal power consumption of 150 μA at 5 V, while 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 con-
nected internally to GND through a 1 kΩ resistor, a 100 kΩ
resistor, or it is left three-stated. Resistor tolerance = ±20%.
The output stage is illustrated in Figure 35.
REGISTER
STRING DAC
AMPLIFIER
VOUT
POWER-DOWN
CIRCUITRY
RESISTOR
NETWORK
0
092
7-
03
3
Figure 35. Output Stage During Power-Down
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
DAC register are unchanged when in power-down. The time to
exit power-down is typically 2.5 μs for VDD = 5 V and 6 μs when
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD5321BRTZ-REEL1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:2.5 V to 5.5 V, 120 ??A, 2-Wire Interface, Voltage-Output 8-/10-/12-Bit DACs |
| AD5321BRTZ-REEL7 | 功能描述:IC DAC 12BIT 2WIRE I2C SOT23-6 RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色產(chǎn)品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 標(biāo)準(zhǔn)包裝:91 系列:- 設(shè)置時(shí)間:4µs 位數(shù):10 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:8 電壓電源:單電源 功率耗散（最大）:2.7mW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-DFN-EP（4x3） 包裝:管件 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:* |
| AD5321BRTZ-REEL71 | 制造商:AD 制造商全稱:Analog Devices 功能描述:2.5 V to 5.5 V, 120 ??A, 2-Wire Interface, Voltage-Output 8-/10-/12-Bit DACs |
| AD5322 | 制造商:AD 制造商全稱: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 |
| AD5322ARM | 功能描述:IC DAC 12BIT DUAL R-R 10-MSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:47 系列:- 設(shè)置時(shí)間:2µs 位數(shù):14 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:管件 輸出數(shù)目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
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