03-31-2020, 10:12 AM
(03-31-2020, 09:53 AM)Ebe Wrote: Mozete li mi dati neke preporuke za (ultra) low noise linearne regulatore? Pozitivan i negativan, podesiv ili +-15V. Bilo bi dobro da su nabavljivi kod nas.
TPS7A3901DSCR je bas dobar i veoma kompaktan pozitivno/negativni regulator:
TPS7A39 Dual, 150-mA, Wide VIN Positive and Negative LDO Voltage Regulator
http://www.ti.com/lit/ds/symlink/tps7a39.pdf
- Positive and Negative LDOs in One Package
- Wide Input Voltage Range: ±3.3 V to ±33 V
- Wide Output Voltage Range:
- Positive Range: 1.2 V to 30 V
- Negative Range: –30 V to 0 V
- Positive Range: 1.2 V to 30 V
- Output Current: 150 mA per Channel
- Monotonic Start-Up Tracking
- High Power-Supply Rejection Ratio (PSRR):
- 69 dB (120 Hz)
- ≥ 50 dB (10 Hz to 2 MHz)
- 69 dB (120 Hz)
- Output Voltage Noise: 21 µVRMS (10 Hz–100 kHz)
- Buffered 1.2-V Reference Output
Ima i pojedinacno pozitivni i negativni dobri regulatori iz te TPSA7A serije ...