参数资料
| 型号： | AD9740ARZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/32页 |
| 文件大小： | 0K |
| 描述： | IC DAC 10BIT 210MSPS 28-SOIC |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 27 |
| 系列： | TxDAC® |
| 设置时间： | 11ns |
| 位数： | 10 |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 电压电源： | 模拟和数字 |
| 功率耗散（最大）： | 145mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC W |
| 包装： | 管件 |
| 输出数目和类型： | 2 电流，单极；2 电流，双极 |
| 采样率（每秒）： | 210M |
| 产品目录页面： | 785 (CN2011-ZH PDF) |
| 配用： | AD9740ACP-PCBZ-ND - BOARD EVAL FOR AD9740ACP |
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AD9740
Rev. B | Page 17 of 32
IOUTFS (mA)
35
0
2
I AV
DD
(mA
)
30
25
20
15
10
4
6
8
10
121416
1820
02911-027
Figure 29. IAVDD vs. IOUTFS
RATIO (fOUT/fCLOCK)
20
0.01
1
0.1
I DVD
D
(m
A
)
14
16
18
12
10
8
6
4
2
0
165MSPS
210MSPS
65MSPS
0
291
1-
05
5
125MSPS
Figure 30. IDVDD vs. Ratio @ DVDD = 3.3 V
fCLOCK (MSPS)
I CL
KVDD
(mA)
11
0
150
100
50
200
250
PECL
DIFF
SE
10
9
8
7
6
5
4
3
2
1
02911-056
Figure 31. ICLKVDD vs. fCLOCK and Clock Mode
APPLYING THE AD9740
Output Configurations
The following sections illustrate some typical output
configurations for the AD9740. Unless otherwise noted, it is
assumed that IOUTFS is set to a nominal 20 mA. For applications
requiring the optimum dynamic performance, a differential
output configuration is suggested. A differential output
configuration can consist of either an RF transformer or a
differential op amp configuration. The transformer
configuration provides the optimum high frequency
performance and is recommended for any application that
allows ac coupling. The differential op amp configuration is
suitable for applications requiring dc coupling, bipolar output,
signal gain, and/or level shifting within the bandwidth of the
chosen op amp.
A single-ended output is suitable for applications requiring a
unipolar voltage output. A positive unipolar output voltage
results if IOUTA and/or IOUTB is connected to an
appropriately sized load resistor, RLOAD, referred to ACOM.
This configuration can be more suitable for a single-supply
system requiring a dc-coupled, ground referred output voltage.
Alternatively, an amplifier could be configured as an I-V
converter, thus converting IOUTA or IOUTB into a negative
unipolar voltage. This configuration provides the best dc linearity
because IOUTA or IOUTB is maintained at a virtual ground.
DIFFERENTIAL COUPLING USING A TRANSFORMER
An RF transformer can be used to perform a differential-to-
single-ended signal conversion, as shown in Figure 32. A
differentially coupled transformer output provides the
optimum distortion performance for output signals whose
spectral content lies within the transformer’s pass band. An
RF transformer, such as the Mini-Circuits T1–1T, provides
excellent rejection of common-mode distortion (that is, even-
order harmonics) and noise over a wide frequency range. It also
provides electrical isolation and the ability to deliver twice the
power to the load. Transformers with different impedance ratios
can also be used for impedance matching purposes. Note that
the transformer provides ac coupling only.
RLOAD
AD9740
MINI-CIRCUITS
T1-1T
OPTIONAL RDIFF
IOUTA
IOUTB
22
21
02911-030
Figure 32. Differential Output Using a Transformer
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD9740ARZRL | 功能描述:IC DAC 10BIT 210MSPS 28-SOIC 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）:* |
| AD9740-EB | 制造商:Analog Devices 功能描述:10 BIT 100 MSPS CMOS DAC - Bulk |
| AD9740WARUZRL7 | 功能描述:数模转换器- DAC 10-Bit 210 MSPS RoHS:否 制造商:Analog Devices 转换器数量:4 DAC 输出端数量:4 转换速率: 分辨率:12 bit 接口类型:Serial (I2C) 稳定时间: 最大工作温度:+ 105 C 安装风格: 封装 / 箱体:TSSOP 封装:Reel |
| AD9741 | 制造商:AD 制造商全称:Analog Devices 功能描述:Dual 8-/10-/12-/14-/16-Bit 250 MSPS Digital-to-Analog Converters |
| AD9741BCPZ | 功能描述:IC DAC DUAL 8BIT 250MSPS 72LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:47 系列:- 设置时间:2µs 位数:14 数据接口:并联 转换器数目:1 电压电源:单电源 功率耗散（最大）:55µW 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:28-SSOP（0.209"，5.30mm 宽） 供应商设备封装:28-SSOP 包装:管件 输出数目和类型:1 电流，单极；1 电流，双极 采样率（每秒）:* |
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