0
ACTIVE
Rating |
Automotive |
VO (V) |
2.5, 3, 3.3, 4.096 |
Temp coeff (max) (ppm/°C) |
8 |
Initial accuracy (max) (%) |
0.05 |
Features |
Enable pin, Multiple outputs |
Iout/Iz (max) (mA) |
20 |
Vin (min) (V) |
2.52 |
Vin (max) (V) |
5.5 |
Iq (typ) (mA) |
0.36, 360 |
TI functional safety category |
Functional Safety-Capable |
LFN 0.1 to 10 Hz (typ) (µVPP) |
30 |
Operating temperature range (°C) |
-40 to 125 |
Shutdown current (ISD) (typ) (µA) |
3.3 |
SOT-23-THN (DDC)-5-8.12 mm² 2.9 x 2.8
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 (VREF) for the ADC and a second highly-accurate voltage (VBIAS) 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 VREF and VBIAS outputs while operating at a quiescent current less than 430 µA. In addition, the VREF and VBIAS 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 VREF and VBIAS 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.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
