Datasheet LT1019 (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | Precision Reference |
| Pages / Page | 12 / 9 — TYPICAL APPLICATIO S. Trimming LT1019-5 Output to 5.120V. Trimming … |
| File Format / Size | PDF / 164 Kb |
| Document Language | English |
TYPICAL APPLICATIO S. Trimming LT1019-5 Output to 5.120V. Trimming LT1019-10 Output to 10.240V. Precision 1. A Current Source
Model Line for this Datasheet
- LT1019ACN8-10#PBF LT1019ACN8-2.5#PBF LT1019ACN8-4.5#PBF LT1019ACN8-5#PBF LT1019ACS8-2.5#PBF LT1019ACS8-2.5#TRPBF LT1019ACS8-5#PBF LT1019ACS8-5#TRPBF LT1019AIS8-2.5#PBF LT1019AIS8-2.5#TRPBF LT1019AIS8-5#PBF LT1019AIS8-5#TRPBF LT1019CN8-10#PBF LT1019CN8-2.5#PBF LT1019CN8-4.5#PBF LT1019CN8-5#PBF LT1019CS8-10#PBF LT1019CS8-10#TRPBF LT1019CS8-2.5#PBF LT1019CS8-2.5#TRPBF LT1019CS8-4.5#PBF LT1019CS8-4.5#TRPBF LT1019CS8-5#PBF LT1019CS8-5#TRPBF LT1019IN8-10#PBF LT1019IN8-2.5#PBF LT1019IN8-4.5#PBF LT1019IN8-5#PBF LT1019IS8-2.5#PBF LT1019IS8-2.5#TRPBF LT1019IS8-5#PBF LT1019IS8-5#TRPBF
Text Version of Document
LT1019
U TYPICAL APPLICATIO S Trimming LT1019-5 Output to 5.120V Trimming LT1019-10 Output to 10.240V
VOUT VOUT OUT 41.2k OUT 90.9k V IN V IN IN 1% IN 1% LT1019-5 LT1019-10 5k* 5k* TRIM TRIM ±1% TRIM ±1% TRIM GND GND 4.02k 4.02k 1% 1% *LOW TC CERMET 1019 TA06 *LOW TC CERMET 1019 TA04
Precision 1
µ
A Current Source Negative Series Reference
15V V+ 11.5k OUT IN LT1019 1% R1* LT1019-2.5 IN OUT 5k* TRIM 8.25k GND D1* GND 1% R2* – –V –V 2.49M IN REF AT 50mA Q1 1% 2N2905 VOUT LT1012 ±11V COMPLIANCE + V– – V *R1 = V+ – 5V , R2 = REF , D1 = V 2mA 1mA REF + 5V 1019 TA10 IOUT = 1µA ZOUT ≥ 1011Ω *LOW TC CERMET, TRIM RANGE = ±1.5% 1019 TA07
Output Current Boost with Current Limit
V+ ≥ (VOUT + 2.8V) GLOWS IN R1 LED 8.2Ω CURRENT LIMIT 220Ω (DO NOT OMIT) 2N2905 IN LT1019 OUT ILOAD ≤ 100mA GND 2µF SOLID TANTALUM 1019 TA08 1019fd 9
U TYPICAL APPLICATIO S Trimming LT1019-5 Output to 5.120V Trimming LT1019-10 Output to 10.240V
VOUT VOUT OUT 41.2k OUT 90.9k V IN V IN IN 1% IN 1% LT1019-5 LT1019-10 5k* 5k* TRIM TRIM ±1% TRIM ±1% TRIM GND GND 4.02k 4.02k 1% 1% *LOW TC CERMET 1019 TA06 *LOW TC CERMET 1019 TA04
Precision 1
µ
A Current Source Negative Series Reference
15V V+ 11.5k OUT IN LT1019 1% R1* LT1019-2.5 IN OUT 5k* TRIM 8.25k GND D1* GND 1% R2* – –V –V 2.49M IN REF AT 50mA Q1 1% 2N2905 VOUT LT1012 ±11V COMPLIANCE + V– – V *R1 = V+ – 5V , R2 = REF , D1 = V 2mA 1mA REF + 5V 1019 TA10 IOUT = 1µA ZOUT ≥ 1011Ω *LOW TC CERMET, TRIM RANGE = ±1.5% 1019 TA07
Output Current Boost with Current Limit
V+ ≥ (VOUT + 2.8V) GLOWS IN R1 LED 8.2Ω CURRENT LIMIT 220Ω (DO NOT OMIT) 2N2905 IN LT1019 OUT ILOAD ≤ 100mA GND 2µF SOLID TANTALUM 1019 TA08 1019fd 9
