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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

The REF6225IDGKT from Texas Instruments is a high-precision voltage reference with integrated ADC drive buffer in 8 pin VSSOP package. The REF6000 family voltage references have an integrated low output impedance buffer that enables the user to directly drive the reference (REF) pin of precision data converters while preserving linearity, distortion and noise performance. Most precision SAR and delta-sigma ADCs, switch binary-weighted capacitors onto the REF pin during the conversion process. In order to support this dynamic load, the output of the voltage reference must be buffered with low-output impedance, high-bandwidth buffer. It is well suited, but not limited to drive the REF pin of the ADS88xx family of SAR ADCs and ADS127xx family of delta-sigma ADCs, as well as precision digital-to-analogue converters (DACs). It is able to maintain an output voltage within 1LSB (18bit) with minimal droop, even during first conversion while driving REF pin of the ADS8881.
Excellent temperature drift performance of 3ppm/°C (max) from 0°C to +70°C
Initial accuracy of 0.05%
Extremely low noise of 5µVRMS with 47µF capacitor, 1/f noise (0.1Hz to 10Hz) 3µVPP/V
Low supply current is 820µA
Low shutdown current is 1µA
High initial accuracy is ±0.05%
Output current drive is ±4mA, output voltage is 2.5V
Programmable short-circuit current
Operating temperature range from -40°C to 125°C

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REF6225IDGKT Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	VSSOP-8
Capacitance Tolerance	±0.05 %
Output Voltage	2.5 V
Output Current	4 mA
Supply Current	1.1 mA
Number of Positions	8 Position
Input Voltage (Max)	6 V
Output Voltage (Max)	2.5 V
Output Voltage (Min)	2.5 V
Output Current (Max)	4 mA
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	0 ℃
Input Voltage	3V ~ 5.5V
	Show
Operating Temperature	0℃ ~ 70℃ (TA)
Temperature Coefficient	±3 ppm/℃
Product Lifecycle Status	Active
Packaging	Cut Tape (CT)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2016/06/20
ECCN Code	EAR99

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