REF20-Q1_TI Automotive low-drift, low-power, series voltage reference

REF20-Q1的基本参数

制造厂商：TI（德州仪器，Texas Instruments）
产品类别：电源管理
技术类目：电压基准 - 串联电压基准
功能描述：Automotive low-drift, low-power, series voltage reference
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REF20-Q1的产品详情：

Applications with only a positive supply voltage often require additional stable voltage in the middle of the analog-to-digital converter (ADC) input range to bias input bipolar signals. The REF20xx-Q1 provides a reference voltage (V_REF) for the ADC and a second highly-accurate voltage (V_BIAS) that can be used to bias the input bipolar signals.

The REF20xx-Q1 offers excellent temperature drift (8 ppm/°C, maximum) and initial accuracy (0.05%) on both the V_REF and V_BIAS outputs while operating at a quiescent current less than 430 µA. In addition, the V_REF and V_BIAS outputs track each other with a precision of 7 ppm/°C (maximum) across the temperature range of –40°C to 125°C. All these features increase the precision of the signal chain and decrease board space, while reducing the cost of the system as compared to a discrete solution. Extremely low dropout voltage of only 10 mV allows operation from very low input voltages, which can be very useful in battery-operated systems.

Both the V_REF and V_BIAS voltages have the same excellent specifications and can sink and source current equally well. Very good long-term stability and low noise levels make these devices ideally-suited for high-precision applications.

REF20-Q1的优势和特性：

AEC-Q100 qualified with the following results:
- Device temperature grade 1: 40°C to +125°C ambient operating temperature
- Device HBM ESD classification level 2
- Device CDM ESD classification level C7B
Functional Safety-Capable
- Documentation available to aid functional safety system design
Two Outputs, VREF and VREF / 2, for convenient use in single-supply systems
Excellent temperature drift performance:
- 8 ppm/°C (maximum) from 40°C to 125°C
High initial accuracy: ±0.05% (maximum)
VREF and VBIAS tracking overtemperature:
- 7 ppm/°C (maximum) from 40°C to 125°C
Microsize package: SOT23-5
Low dropout voltage: 10 mV
High output current: ±20 mA
Low quiescent current: 360 A
Line regulation: 3 ppm/V
Load regulation: 8 ppm/mA

REF20-Q1的参数（英文）：

VO (V)
2.5, 1.25, 3.0, 1.5, 3.3, 1.65, 4.096, 2.048
Initial accuracy (Max) (%)
0.05
Temp coeff (Max) (ppm/ degree C)
8
Vin (Min) (V)
2.52
Vin (Max) (V)
5.5
Iq (Typ) (uA)
360
Rating
Automotive
TI functional safety category
Functional Safety-Capable
Features
Multiple outputs, Enable pin
Iout/Iz (Max) (mA)
20
Shutdown current (ISD) (Typ) (uA)
3.3

REF20-Q1具体的完整产品型号参数及价格（美元）：

REF20-Q1的完整型号有：REF2025QDDCRQ1、REF2030QDDCRQ1、REF2033QDDCRQ1、REF2041QDDCRQ1，以下是这些产品的关键参数及官网采购报价：

REF2025QDDCRQ1，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-5，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网REF2025QDDCRQ1的批量USD价格：2.104（1000+）

REF2030QDDCRQ1，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-5，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网REF2030QDDCRQ1的批量USD价格：2.104（1000+）

REF2033QDDCRQ1，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-5，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网REF2033QDDCRQ1的批量USD价格：2.104（1000+）

REF2041QDDCRQ1，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-5，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网REF2041QDDCRQ1的批量USD价格：2.104（1000+）

REF20-Q1的评估套件：

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REF20-Q1的电路图解：

REF20-Q1的评估套件：