Specification	REF3425SQDBVRQ1

Current - Output	10 mA
Current - Supply	95 µA
Grade	Automotive
Mounting Type	Surface Mount
Noise - 0.1Hz to 10Hz	5 µVp-p
Noise - 10Hz to 10kHz	24 çVrms
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Type	1.81 mOhm
Package / Case	SC-74A, SOT-753
Qualification	AEC-Q100
Reference Type	Series
Supplier Device Package	SOT-23-5
Temperature Coefficient	6 ppm/°C
Tolerance	0.05 %
Voltage - Input [Max]	12 V
Voltage - Input [Min]	3 V
Voltage - Output (Min/Fixed)	2.5 V

REF3440-EP Series

Automotive, low-drift, low-power, small-footprint series voltage reference

Part	Mounting Type	Current - Output	Noise - 0.1Hz to 10Hz	Tolerance	Noise - 10Hz to 10kHz	Voltage - Output (Min/Fixed)	Reference Type	Output Type	Temperature Coefficient	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Current - Supply	Package / Case	Voltage - Input [Min]	Voltage - Input [Max]	Qualification	Grade
Texas Instruments REF3425TIDBVR	Surface Mount	10 mA	5 µVp-p	0.05 %	24 çVrms	2.5 V	Series	1.81 mOhm	6 ppm/°C	SOT-23-6	-40 °C	125 °C	95 µA	SOT-23-6	3 V	12 V
Texas Instruments REF3440IDBVR	Surface Mount	10 mA	3.8 ppmp-p	0.05 %	24 çVrms	4.096 V	Series	1.81 mOhm	6 ppm/°C	SOT-23-6	-40 °C	125 °C	95 µA	SOT-23-6	4.596 V	12 V
Texas Instruments REF3425MDBVTEP	Surface Mount	10 mA	5 µVp-p	0.05 %	24 çVrms	2.5 V	Series	1.81 mOhm	6 ppm/°C	SOT-23-6	-55 °C	125 ¯C	95 µA	SOT-23-6	3 V	12 V
Texas Instruments REF3433MDBVTEP	Surface Mount	10 mA	5 µVp-p	0.05 %	24 çVrms	3.3 V	Series	1.81 mOhm	10 ppm/°C	SOT-23-6	-55 °C	125 ¯C	95 µA	SOT-23-6	3.35 V	13 V
Texas Instruments REF3440MDBVTEP	Surface Mount	10 mA	3.8 ppmp-p	0.05 %	24 çVrms	4.096 V	Series	1.81 mOhm	6 ppm/°C	SOT-23-6	-55 °C	125 ¯C	95 µA	SOT-23-6	4.596 V	12 V
Texas Instruments REF3450TIDBVR	Surface Mount	10 mA	3.8 ppmp-p	0.05 %	24 çVrms	5 V	Series	1.81 mOhm	6 ppm/°C	SOT-23-6	-40 °C	125 °C	95 µA	SOT-23-6	5.5 V	12 V
Texas Instruments REF3440SQDBVRQ1	Surface Mount	10 mA	3.8 ppmp-p	0.05 %	24 çVrms	4.096 V	Series	1.81 mOhm	6 ppm/°C	SOT-23-5	-40 °C	125 °C	95 µA	SC-74A SOT-753	4.596 V	12 V	AEC-Q100	Automotive
Texas Instruments REF3440QDBVRQ1	Surface Mount	10 mA	3.8 ppmp-p	0.05 %	24 çVrms	4.096 V	Series	1.81 mOhm	6 ppm/°C	SOT-23-6	-40 °C	125 °C	95 µA	SOT-23-6	4.596 V	12 V	AEC-Q100	Automotive
Texas Instruments REF3433SQDBVRQ1	Surface Mount	10 mA	5 µVp-p	0.05 %	24 çVrms	3.3 V	Series	1.81 mOhm	6 ppm/°C	SOT-23-5	-40 °C	125 °C	95 µA	SC-74A SOT-753	3.8 V	12 V	AEC-Q100	Automotive
Texas Instruments REF3425SQDBVRQ1	Surface Mount	10 mA	5 µVp-p	0.05 %	24 çVrms	2.5 V	Series	1.81 mOhm	6 ppm/°C	SOT-23-5	-40 °C	125 °C	95 µA	SC-74A SOT-753	3 V	12 V	AEC-Q100	Automotive

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 3.81
		10	$ 3.42
		25	$ 3.24
		100	$ 2.81
		250	$ 2.66
		500	$ 2.39
		1000	$ 2.01
	Digi-Reel®	1	$ 3.81
		10	$ 3.42
		25	$ 3.24
		100	$ 2.81
		250	$ 2.66
		500	$ 2.39
		1000	$ 2.01
	Tape & Reel (TR)	3000	$ 1.91
Texas Instruments	LARGE T&R	1	$ 3.18
		100	$ 2.63
		250	$ 1.89
		1000	$ 1.42

Description

General part information

REF3440-EP Series

The REF34-Q1 devices are low-temperature-drift (6 ppm/°C), low-power, high-precision CMOS voltage references. The devices have ±0.05% initial accuracy and low operating current with power consumption less than 95 µA. These devices also offer very low output noise of 3.8 µVPP/V, which enable the devices to maintain high signal integrity with high-resolution data converters and noise critical systems.

Stability and system reliability are further improved by the low output-voltage hysteresis of these devices and low long-term output voltage drift. Furthermore, the small size and low operating current of the devices (95 µA) make them an excellent choise for battery-powered applications. The REF34-Q1 features an enable pin that can set the device into shutdown where it consumes a low stand by current (3 µA) to help with overall system power during standby.

The REF34-Q1 family is specified for the wide temperature range of −40°C to +125°C. Contact the TI sales representative for additional voltage options.