4 layers99 × 67 mm
Overview
The ADR4525BRZ-R7 is a voltage Reference made by Analog Devices in a SOIC-8 package with 8 pins. -40℃~+125℃@(Ta) 1.25uVp-p 10mA 2.5V 2ppm/℃ 3V~15V 950uA Fixed Series ±0.02% SOIC-8 Voltage Reference ROHS.
PCBKit's library has its KiCad symbol (Reference_Voltage:ADR4525, from KiCad's library) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 5,059 are in stock at JLCPCB (part C403914). 2 open-source boards in 1 repository on GitHub use it.
Symbol
Footprint
From the datasheet
10- Supply, least
- 3 V · V IN, recommended operating min · p. 5
- Supply, absolute maximum
- 16 V · V IN, absolute max · p. 10
- Works from
- -40 °C · Operating ambient min · p. 10
- Works up to
- 125 °C · Operating ambient max · p. 10
- Junction, hottest
- 150 °C · Junction temperature absolute max · p. 10
- Takes working
- 700 µA · Quiescent current typical, no load, −40°C to +125°C · p. 5
- Output
- 2.5 V · V OUT, fixed output typical · p. 5
- Dropout
- 500 mV · Dropout max, no load, −40°C to +125°C · p. 5
- Junction to air (8引脚SOIC)
- 120 K/W · Junction to ambient, 2-layer JEDEC board · p. 10
- Junction to case (8引脚SOIC)
- 63 K/W · Junction to case, 1-layer JEDEC board · p. 10
What it is and has
5- Temperature coefficient
- B grade: 2 ppm/°C maximum, −40°C to +125°C · p. 1
- Initial output voltage error
- B grade: ±0.02% maximum · p. 1
- Output current
- +10 mA source / −10 mA sink · p. 1
- Package
- 8-pin SOIC · p. 1
- Long-term drift
- 51 ppm typical / 4500 hours · p. 1
Specifications
33| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| 输出电压 V OUT | ADR4525B; V IN = 3 V至15 V，I L = 0 mA，T A = 25°C | typ 2.5 V | 5 |
| 初始输出电压误差 V OUT_ERR | ADR4525 B级; ± limit | max 0.02 % | 5 |
| 初始输出电压误差 V OUT_ERR | ADR4525 B级; error magnitude | max 500 uV | 5 |
| 焊接热阻变化 | ADR4525B; ± typical | typ 0.02 % | 5 |
| 温度系数 TCV OUT | ADR4525 B级; −40°C ≤ T A ≤ +125°C（黑盒法） | max 2 ppm/°C | 5 |
| 温度系数 TCV OUT | ADR4525 B级; −40°C ≤ T A ≤ +125°C（领结法） | max 4 ppm/°C | 5 |
| 线性调整率 ΔV OUT /ΔV IN | ADR4525B; −40°C ≤ T A ≤ +125°C | typ 1 · max 10 ppm/V | 5 |
| 负载调整率 ΔV OUT /ΔI L | ADR4525B; I L = 0 mA至+10 mA源电流，−40°C ≤ T A ≤ +125°C | typ 30 · max 80 ppm/mA | 5 |
| 负载调整率 ΔV OUT /ΔI L | ADR4525B; I L = 0 mA至−10 mA吸电流，−40°C ≤ T A ≤ +125°C | typ 60 · max 120 ppm/mA | 5 |
| 静态电流 IQ | ADR4525B; −40°C ≤ T A ≤ +125°C，空载 | typ 700 · max 950 uA | 5 |
| 压差 V DO | ADR4525B; −40°C ≤ T A ≤ +125°C，空载 | max 500 mV | 5 |
| 压差 V DO | ADR4525B; −40°C ≤ T A ≤ +125°C，I L = 2 mA | max 500 mV | 5 |
| 纹波抑制比 RRR | ADR4525B; f IN = 1 kHz | typ 90 dB | 5 |
| 输出电流容量 吸电流 IL | ADR4525B | max -10 mA | 5 |
| 输出电流容量 源电流 IL | ADR4525B | max 10 mA | 5 |
| 输出电压噪声 e Np-p | ADR4525B; 0.1 Hz至10.0 Hz | typ 1.25 uV p-p | 5 |
| 输出电压噪声密度 eN | ADR4525B; 1 kHz | typ 41.3 nV/√Hz | 5 |
| 输出电压迟滞 ΔV OUT_HYS | ADR4525B; +25°C至+125°C至−40°C至+25°C（全循环） | typ -13 ppm | 5 |
| 输出电压迟滞 ΔV OUT_HYS | ADR4525B; 25°C至125°C至25°C（半循环） | typ -97 ppm | 5 |
| 输出电压迟滞 ΔV OUT_HYS | ADR4525B; 25°C至70°C至0°C至25°C（全循环） | typ -8 ppm | 5 |
| 输出电压迟滞 ΔV OUT_HYS | ADR4525B; 25°C至70°C至25°C（半循环） | typ -17 ppm | 5 |
| 长期漂移 ΔV OUT_LTD | ADR4525B; T A = 25°C; 250小时（早期漂移） | typ 19 ppm | 5 |
| 长期漂移 ΔV OUT_LTD | ADR4525B; T A = 25°C; 1000小时 | typ 25 ppm | 5 |
| 长期漂移 ΔV OUT_LTD | ADR4525B; T A = 25°C; 4500小时 | typ 51 ppm | 5 |
| 开启建立时间 tRR | ADR4525B; C OUT = 1 uF，C IN = 0.1 uF，R LOAD = 1 kΩ | typ 125 us | 5 |
| 负载电容 | ADR4525B | min 1 · max 100 uF | 5 |
| 电源电压 | T A = 25°C | max 16 V | 10 |
| 工作温度范围 | min -40 · max 125 °C | 10 | |
| 存储温度范围 | min -65 · max 150 °C | 10 | |
| 结温范围 | min -65 · max 150 °C | 10 | |
| 静电放电(ESD)人体模型(HBM) | T A = 25°C | max 6 kV | 10 |
| 热阻 θ JC | 8引脚SOIC; 1层JEDEC板 | typ 63 °C/W | 10 |
| 热阻 θ JA | 8引脚SOIC; 2层JEDEC板 | typ 120 °C/W | 10 |
Parameters
16- Current - Supply
- 700uA
- Junction Temperature(Max)
- 150℃
- Noise - 1/10Hz to 10Hz
- 1.25uVp-p
- Operating Temperature
- -40℃~+125℃
- Output Current
- 10mA
- Output Type
- Fixed
- Output Voltage
- 2.5V
- Quiescent Current
- 950uA
- Reference Type
- Series
- Temperature Coefficient
- 2ppm/℃
- Thermal Resistance(Junction to Ambient)
- 120℃/W
- Thermal Resistance(Junction to Case)
- 63℃/W
- Tolerance
- ±0.02%
- Voltage - Supply
- 3V~15V
- Voltage - Supply(Absolute Max)
- 16V
- Voltage Dropout
- 500mV
Order codes
1- ADR4525BRZ-R7LCSC C403914
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | NC | Not connected |
| 2 | IN | Power in |
| 3 | NC | Not connected |
| 4 | GND | Power in |
| 5 | NC | Not connected |
| 6 | OUT | Power out |
| 7 | NC | Not connected |
| 8 | NC | Not connected |
Open-source boards using it
All 2- 2 layers99.7 × 66.9 mm
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Is there a KiCad symbol and footprint for the ADR4525BRZ-R7?
Yes. The symbol is Reference_Voltage:ADR4525 and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ADR4525BRZ-R7?
SOIC-8, with 8 pins. Its footprint is drawn on this page.
Where is the ADR4525BRZ-R7 datasheet?
Analog Devices publishes it: the Datasheet link on this page opens it.
Where can I order the ADR4525BRZ-R7?
JLCPCB lists it as part C403914, with 5,059 in stock; the sellers' links on this page open their listings.
What can replace the ADR4525BRZ-R7?
Parts like it in the library: the REF54250CD by Texas Instruments, the ADR4525BRZ by Analog Devices, the MAX6126AASA25+ by Maxim Integrated (Analog Devices) and the MAX6126AASA25+T by Maxim Integrated (Analog Devices). Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ADR4525BRZ-R7?
2 boards in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
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