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AD588
DYNAMIC PERFORMANCE
The output buffer amplifiers (A3 and A4) are designed to
provide the AD588 with static and dynamic load regulation
superior to less complete references. Many analog-to-digital and
digital-to-analog converters present transient current loads to
In some applications, a varying load can be both resistive and
capacitive in nature or can be connected to the AD588 by a long
capacitive cable. Figure 25 and Figure 26 display the output
amplifier characteristics driving a 1000 pF, 0 mA to 10 mA load.
A3 OR A4
the reference, and poor reference response can degrade the
converter’s performance. Figure 21 and Figure 22 display the
characteristics of the AD588 output amplifier driving a 0 mA
to 10 mA load.
10V
C L
1000pF
V L
1k ?
10V
0V
V OUT
A3 OR A4
I L
1k ?
V OUT
Figure 25. Capacitive Load Transient Response Test Circuit
10V
V L
10V
0V
C L = 0
Figure 21. Transient Load Test Circuit
C L = 1000pF
V L
V OUT
Figure 26. Output Response with Capacitive Load
Figure 27 and Figure 28 display the crosstalk between output
V L
Figure 22. Large-Scale Transient Response
Figure 23 and Figure 24 display the output amplifier
characteristics driving a 5 mA to 10 mA load, a common
amplifiers. The top trace shows the output of A4, dc-coupled
and offset by 10 V, while the output of A3 is subjected to a 0 mA
to 10 mA load current step. The transient at A4 settles in about
1 μs, and the load-induced offset is about 100 μV.
situation found when the reference is shared among multiple
A4
V OUT
A3
converters or is used to provide a bipolar offset current.
A3 OR A4
+
10V
–
V L
1k ?
10V
0V
+
10V
–
V OUT
Figure 27. Load Crosstalk Test Circuit
+
10V
–
I L
V L
2k ?
10V
0V
2k ?
Figure 23. Transient and Constant Load Test Circuit
V OUT
1mV/CM
V OUT
200mV/CM
V OUT
V L
Figure 28. Load Crosstalk
V L
Figure 24. Transient Response 5 mA to10 mA Load
Rev. L | Page 13 of 20
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相关代理商/技术参数
AD588BD 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference
AD588BQ 功能描述:IC VREF SERIES PREC ADJ 16-CDIP RoHS:否 类别:集成电路 (IC) >> PMIC - 电压基准 系列:- 标准包装:2,000 系列:- 基准类型:旁路，可调节，精度 输出电压:1.24 V ~ 16 V 容差:±0.5% 温度系数:- 输入电压:1.24 V ~ 16 V 通道数:1 电流 - 阴极:100µA 电流 - 静态:- 电流 - 输出:20mA 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:TO-226-3、TO-92-3（TO-226AA）成形引线 供应商设备封装:TO-92-3 包装:带卷 (TR)
AD588JQ 功能描述:IC VREF SERIES PREC ADJ 16-CDIP RoHS:否 类别:集成电路 (IC) >> PMIC - 电压基准 系列:- 标准包装:1,000 系列:- 基准类型:旁路，可调节，精度 输出电压:2.495 V ~ 36 V 容差:±0.5% 温度系数:标准值 34ppm/°C 输入电压:2.495 V ~ 36 V 通道数:1 电流 - 阴极:1mA 电流 - 静态:- 电流 - 输出:100mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:TO-243AA 供应商设备封装:SOT-89-3 包装:带卷 (TR)
AD588KQ 功能描述:IC VREF SERIES PREC ADJ 16-CDIP RoHS:否 类别:集成电路 (IC) >> PMIC - 电压基准 系列:- 标准包装:2,000 系列:- 基准类型:旁路，可调节，精度 输出电压:1.24 V ~ 16 V 容差:±0.5% 温度系数:- 输入电压:1.24 V ~ 16 V 通道数:1 电流 - 阴极:100µA 电流 - 静态:- 电流 - 输出:20mA 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:TO-226-3、TO-92-3（TO-226AA）成形引线 供应商设备封装:TO-92-3 包装:带卷 (TR)
AD588SD 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference
AD588SD/883B 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference
AD588SE 制造商:Rochester Electronics LLC 功能描述:- Bulk
AD588SE/883B 制造商:Analog Devices 功能描述:V-Ref Programmable ±5V/±10V 20-Pin LCC Tube