REF34-Q1 Texas instruments

REF34-Q1

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REF34-Q1

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Описание

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.

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 C6
Initial accuracy: ±0.05% (maximum)
Temperature coefficient : 6 ppm/°C (maximum)
Operating temperature range: −40°C to +125°C
Output voltage options: 2.5V, 3.0V, 3.3V, 4.096V, 5.0V
Output current: ±10 mA
Low quiescent current: 95 µA (maximum)
Low shutdown mode current: 3 µA (maximum)
Wide input voltage: 12 V
Output 1/f noise (0.1 Hz to 10 Hz): 3.8 µV_PP/V
Excellent long-term stability 25 ppm/1000 hrs
Available in 6-pin and 5-Pin SOT-23 package and 8-pin MSOP package

VO (V)	2.5, 3, 3.3, 4.096, 5
Initial accuracy (max) (%)	0.05
Temp coeff (max) (ppm/°C)	6
Vin (min) (V)	2.55
Vin (max) (V)	12
Iq (typ) (mA)	0.072
Rating	Automotive
TI functional safety category	Functional Safety-Capable
Features	4-wire output, Enable pin
LFN 0.1 to 10 Hz (typ) (µVPP)	12.5, 19
Iout/Iz (max) (mA)	10
Operating temperature range (°C)	-40 to 125
Shutdown current (ISD) (typ) (µA)	2.5