参数资料
| 型号： | AD9709ASTZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 10/32页 |
| 文件大小： | 0K |
| 描述： | IC DAC 8BIT DUAL 125MSPS 48-LQFP |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 1 |
| 系列： | TxDAC+® |
| 设置时间： | 35ns |
| 位数： | 8 |
| 数据接口： | 并联 |
| 转换器数目： | 2 |
| 电压电源： | 模拟和数字 |
| 功率耗散（最大）： | 450mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-LQFP |
| 供应商设备封装： | 48-LQFP（7x7） |
| 包装： | 托盘 |
| 输出数目和类型： | 4 电流，单极；4 电流，双极 |
| 采样率（每秒）： | 125M |
| 产品目录页面： | 785 (CN2011-ZH PDF) |
| 配用： | AD9709-EBZ-ND - BOARD EVAL FOR AD9709 |
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AD9709
Rev. B | Page 18 of 32
80
70
60
50
40
30
20
10
02
20
15
10
5
I AV
D
(m
A
)
IOUTFS (mA)
00
60
6-
0
32
SLEEP MODE OPERATION
The AD9709 has a power-down function that turns off the
output current and reduces the supply current to less than
8.5 mA over the specified supply range of 3.3 V to 5 V and
temperature range. This mode can be activated by applying a
Logic Level 1 to the SLEEP pin. The SLEEP pin logic threshold
is equal to 0.5 × AVDD. This digital input also contains an active
pull-down circuit that ensures the AD9709 remains enabled if
this input is left disconnected. The AD9709 requires less than
50 ns to power down and approximately 5 μs to power back up.
POWER DISSIPATION
The power dissipation, PD, of the AD9709 is dependent on several
factors, including
5
.5
Figure 33. IAVDD vs. IOUTFS
the power supply voltages (AVDD and DVDD1/DVDD2)
35
30
25
20
15
10
5
0
00
0.4
0.3
0.2
0.1
I DVD
D
(m
A
)
RATIO (
fOUT/fCLK)
125MSPS
100MSPS
65MSPS
25MSPS
5MSPS
0
06
-0
33
the full-scale current output (IOUTFS)
the update rate (fCLK)
the reconstructed digital input waveform
The power dissipation is directly proportional to the analog
supply current, IAVDD, and the digital supply current, IDVDD. IAVDD
insensitive to fCLK.
Conversely, IDVDD is dependent on the digital input waveform,
ratios (fOUT/fCLK) for various update rates with DVDD1 =
DVDD2 = 5 V and DVDD1 = DVDD2 = 3.3 V, respectively.
Note how IDVDD is reduced by more than a factor of 2 when
DVDD1/DVDD2 is reduced from 5 V to 3.3 V.
Figure 34. IDVDD vs. Ratio @ DVDD1 = DVDD2 = 5 V
18
16
14
12
10
8
6
4
2
0
00
0.4
0.3
0.2
0.1
I DVD
D
(m
A
)
RATIO (
fOUT/fCLK)
.5
125MSPS
100MSPS
65MSPS
25MSPS
5MSPS
0
06
-0
34
Figure 35. IDVDD vs. Ratio @ DVDD1 = DVDD2 = 3.3 V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD9709ASTZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:8-Bit, 125 MSPS, Dual TxDAC Digital-to-Analog Converter |
| AD9709ASTZKL1 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD9709ASTZRL | 功能描述:IC DAC 8BIT DUAL 125MSPS 48LQFP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:TxDAC+® 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）:* |
| AD9709ASTZRL1 | 制造商:AD 制造商全称:Analog Devices 功能描述:8-Bit, 125 MSPS, Dual TxDAC Digital-to-Analog Converter |
| AD9709-EB | 制造商:Analog Devices 功能描述: 制造商:Rochester Electronics LLC 功能描述: |
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