AD9059BRS: 双通道8位高速ADC技术规格
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"AD9059BRS是Analog Devices公司的一款双通道8位高速模数转换器（ADC），适用于数字通信、视频处理、数据存储读取通道、医疗成像和数字仪器等多个领域。这款ADC芯片具有低功耗、高带宽和集成化的特性，如内置2.5V参考电压和采样保持电路。"
AD9059BRS是一款高性能的模拟到数字转换器，其核心特点包括：
1. **双通道8位设计**：该器件集成了两个独立的8位ADC，能够同时处理两个模拟输入信号，对于需要并行处理多个信号的系统来说非常有用。
2. **低功耗**：典型工作状态下，AD9059BRS的功耗仅为400毫瓦，这使得它在便携式和电池供电设备中成为理想选择。
3. **内置2.5V参考电压和采样保持电路（T/H）**：提供稳定的参考电压以确保转换精度，而采样保持功能则允许在转换过程中稳定输入信号，提高测量的准确性。
4. **1Vp-p模拟输入范围**：这个范围适用于多种常见的模拟信号幅度，确保了兼容性。
5. **单5V电源操作**：简化了电源管理，并降低了系统复杂性。
6. **5V或3V逻辑接口**：提供了灵活的数字接口选项，可以适应不同电压等级的数字系统。
7. **120MHz模拟带宽**：意味着AD9059BRS可以处理高速、宽带的模拟信号，适合高频率的应用场景。
8. **电源关闭模式**：在不需要转换时，可以通过电源关闭模式将功耗降至12毫瓦以下，以节省能源。
9. **应用广泛**：在数字通信中的QAM解调器、RGB和YC/复合视频处理、数字数据存储读取通道、医疗成像设备以及各种数字仪器中都有应用。
AD9059BRS是一款高性能、低功耗且高度集成的ADC，适合对转换速度和精度有较高要求的系统设计。需要注意的是，使用该器件时需遵守Analog Devices提供的规格书和注意事项，避免侵犯任何第三方的专利或其他权利，并了解Analog Devices并不对其使用结果承担侵权责任。用户需要自行评估和使用，同时理解并无明示或暗示的专利许可。
AD9059BRS
Parameter Temp Test Level Min Typ Max Units
DIGITAL INPUTS
Logic “1” Voltage Full VI 2.0 V
Logic “0” Voltage Full VI 0.8 V
Logic “1” Current Full VI ±1 µA
Logic “0” Current Full VI ±1 µA
Input Capacitance +25°C V 4.5 pF
Encode Pulse Width High (t
EH
) +25°C IV 6.7 166 ns
Encode Pulse Width Low (t
EL
) +25°C IV 6.7 166 ns
DIGITAL OUTPUTS
Logic “1” Voltage (V
DD
= +3 V) Full VI 2.95 V
Logic “1” Voltage (V
DD
= +5 V) Full IV 4.95 V
Logic “0” Voltage (V
DD
= +3 V or +5 V) Full VI 0.05 V
Output Coding Offset Binary Code
POWER SUPPLY
V
D
Supply Current (V
D
= +5 V) Full VI 72 92 mA
V
DD
Supply Current (V
DD
= +3 V)
4
Full VI 13 15 mA
Power Dissipation
5, 6
Full VI 400 505 mW
Power-Down Dissipation Full VI 6 12 mW
Power Supply Rejection Ratio (PSRR) +25°C I 15 mV/V
NOTES
1
Gain error and gain temperature coefficient are based on the ADC only (with a fixed +2.5 V external reference).
2
t
V
and t
PD
are measured from the 1.5 V level of the ENCODE to the 10%/90% levels of the digital output swing. The digital output load during test is not to exceed
an ac load of 10 pF or a dc current of ±40 µA.
3
SNR/harmonics based on an analog input voltage of –0.5 dBFS referenced to a 1.0 V full-scale input range.
4
Digital supply current based on V
DD
= +3 V output drive with <10 pF loading under dynamic test conditions.
5
Power dissipation is based on 60 MSPS encode and 10.3 MHz analog input dynamic test conditions (V
D
= +5 V ± 5%, V
DD
= +3 V ± 5%).
6
Typical thermal impedance for the RS style (SSOP) 28-pin package: θ
JC
= 39°C/W, θ
CA
= 70°C/W, θ
JA
= 109°C/W.
Specifications subject to change without notice.
AD9059
–3–
REV. 0
EXPLANATION OF TEST LEVELS
Test Level
I – 100% production tested.
II – 100% production tested at +25°C and sample tested at
specified temperatures.
III – Sample tested only.
IV – Parameter is guaranteed by design and characteriza-
tion testing.
V – Parameter is a typical value only.
VI – 100% production tested at +25°C; guaranteed by
design and characterization testing for industrial tem-
perature range.
ABSOLUTE MAXIMUM RATINGS*
V
D
, V
DD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7 V
Analog Inputs . . . . . . . . . . . . . . . . . . . . . –0.5 V to V
D
+ 0.5 V
Digital Inputs . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V
D
+ 0.5 V
V
REF
Input . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V
D
+ 0.5 V
Digital Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Operating Temperature . . . . . . . . . . . . . . . . .–55°C to +125°C
Storage Temperature . . . . . . . . . . . . . . . . . . .–65°C to +150°C
*Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in the
operational sections of this specification is not implied. Exposure to absolute
maximum ratings for extended periods may affect device reliability.
ORDERING GUIDE
Model Temperature Range Package Option
AD9059BRS –40°C to +85°C RS-28
AD9059/PCB +25°C Evaluation Board
WARNING!
ESD SENSITIVE DEVICE
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD9059 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
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