ADR4525

量产

超低噪声、高精度2.5V基准电压源

数据手册 (Rev. F)

产品选型表

产品模型: 9

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产品详情

最大温度系数(TCV_OUT)：

0.8 ppm/°C（D级，0°C至70°C）
1 ppm/°C（C级，0°C至70°C）
2 ppm/°C（B级，−40°C至+125°C）
4 ppm/°C（A级，−40°C至+125°C）

输出噪声（0.1 Hz至10 Hz）：
1 μV p-p（V_OUT为2.048 V（典型值）时）
初始输出电压误差：
- B、C、D级：±0.02%（最大值）
输入电压范围：3 V至15 V

工作温度范围：

A级和B级：−40°C至+125°C
C 级和 D 级：0°C 至 +70°C

输出电流：+10 mA拉电流/-10 mA灌电流
低静态电流：950 µA（最大值）
低压差：300 mV（2 mA，V_OUT ≥ 3 V）
8引脚SOIC封装和LCC封装
通过AEC-Q100汽车应用认证
长期漂移：8 ppm（典型值）/4500小时

参考资料

ADI 始终高度重视提供符合最高质量和可靠性水平的产品。我们通过将质量和可靠性检查纳入产品和工艺设计的各个范围以及制造过程来实现这一目标。出货产品的“零缺陷”始终是我们的目标。查看我们的质量和可靠性计划和认证以了解更多信息。

产品型号	引脚/封装图-中文版	文档	CAD 符号，脚注和 3D模型
ADR4525ARZ	8-Lead SOIC	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADR4525ARZ-R7	8-Lead SOIC	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADR4525BRZ	8-Lead SOIC	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADR4525BRZ-R7	8-Lead SOIC	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADR4525CRZ	8-Lead SOIC	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADR4525CRZ-R7	8-Lead SOIC	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADR4525DEZ	LCC:CER LEADLESS CHIP CARR	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADR4525DEZ-R7	LCC:CER LEADLESS CHIP CARR	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADR4525WBRZ-R7	8-Lead SOIC	Material Declaration Reliablity Data	Ultra Librarian SamacSys

这是最新版本的数据手册

硬件生态系统

部分模型	产品周期	描述
正线性稳压器(LDO) 1
LT3040	推荐新设计使用	20V、200mA、超低噪声、超高 PSRR 精准 DAC/基准缓冲器

工具及仿真模型

LTspice 1

ADR4525 - Voltage References

LTspice中提供以下器件型号：

ADR4525

Signal Chain Designer - BETA

Signal Chain Designer is a web-based tool designed to create and simulate complex precision signal chains. See your circuit’s performance before you commit to your PCB: transfer function, noise, power consumption, input range, and DC error. Quickly experiment with different parts and architectures. Signal chains can be exported to LTspice for further analysis.

打开工具

LTspice^®是一款强大高效的免费仿真软件、原理图采集和波形观测器，为改善模拟电路的仿真提供增强功能和模型。

评估套件

Evaluation Board for the AD5676R WLCSP

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特性和优点

Full featured evaluation board for the AD5676R WLCSP
On-board or external power supply
On-board or external voltage reference
Arduino^® Uno form-factor, mates with SDP-K1
PC control via Analysis | Control | Evaluation (ACE) Software

产品详情

The EVAL-AD5676RARDZ allows users to quickly prototype AD5676R circuits and reduce design time. The AD5676R operates from a single 2.7 V to 5.5 V supply. The AD5676R incorporates an internal 2.5 V reference to give a full-scale output voltage of 2.5 V or 5 V. An ADR4525 is also provided on-board as a 2.5V reference source. A different external reference voltage can be applied via the EXT_REF SMB connector or test pin if needed.

The EVAL-AD5676RARDZ interfaces to the USB port of a PC via a system demonstration platform board (SDP-K1 ). The Analysis | Control | Evaluation (ACE) software is available for download from the EVAL-AD5676RARDZ product page to use with the evaluation board to allow the user to program the AD5676R. A peripheral module interface (PMOD) connection is also available to allow the connection of microcontrollers to the evaluation board without the SDP-K1 board. When a microcontroller is used through the PMOD connection, the SDP-K1 board must be disconnected, and the user is unable to operate the ACE software.

The EVAL-AD5676RARDZ is compatible with the EVAL-SDP-CK1Z (SDP-K1), which should be purchased separately. A typical connection between the EVAL-AD5676RARDZ and the SDP-B controller board is shown in the user guide. For full details, see the AD5676R data sheet, which must be used in conjunction with the user guide when using the EVAL-AD5676RARDZ.

资料

EVAL-AD5676RARDZ Evaluation Board User Guide
2022/1/12

RF Front-end GaN Power Amplifier Biasing, Protection, and Control Reference Design

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特性和优点

Designed to cover full Tx signal chains with integrated MCU and user-friendly GUI for faster and easier integration
Supports fault event protection - overvoltage (OV), overcurrent (OC), and overtemperature (OT)
Supports ultrafast sub-µs GaN gate voltage switching ~ (<1 µs)
Supports ultrafast (<10 µs) fault event protection from detection up to GaN gate pinch-off
Wide range of gate bias voltages from -10 V to +10 V
Configurable power-up and power-down sequence

产品详情

The AD-PAARRAY3552R-SL reference design provides control, protection, and proper biasing sequence for GaN power amplifier (PA) arrays. The design incorporates the AD3553R high-speed, dual-channel, 16-bit DAC to support the ultrafast sub-µs voltage settling time of GaN gates.

Key fault events, including overvoltage, overcurrent, and overtemperature, are effectively managed by the LTC7000, a static switch driver responsible for system fault protection.

The on-board MAX32666 ultralow-power ARM^® Cortex^®-M4 microprocessor provides essential debug and programming features for a comprehensive software development experience with the system. The system's firmware is built on ADI's open-source no-OS framework and includes a user-friendly graphical interface (GUI) for evaluation. Updates are easily applied through an SWD UART bootloader, streamlining prototyping.

The system can be powered by an external +48 V supply, requiring high current capabilities.

APPLICATIONS

5G massive MIMOs
Macro base stations

Specifications
Fault Events
Fault	Default Limit
Overvoltage	+55 V
Overcurrent	3.5 A
Overtemperature	75°C
Output Ports
Port Name	No. of ports
GaN gate ports	6
+48 V Gan drain ports	4
+5 V ports	5
Enable ports	2
Power Supply
External	+48 V DC at 5 A
Operating Conditions
Temperature Range	45°C to +75°C