Datasheet LT1008 (Analog Devices) - 16
| Manufacturer | Analog Devices |
| Description | Picoamp Input Current, Microvolt Offset, Low Noise Op Amp |
| Pages / Page | 16 / 16 — TYPICAL APPLICATIO. Ammeter with Six Decade Range. RELATED PARTS. PART … |
| File Format / Size | PDF / 283 Kb |
| Document Language | English |
TYPICAL APPLICATIO. Ammeter with Six Decade Range. RELATED PARTS. PART NUMBER. DESCRIPTION. COMMENTS
Model Line for this Datasheet
Text Version of Document
LT1008
U TYPICAL APPLICATIO
Ammeter measures currents from 100pA to 100μA with- 100μA is limited by the offset voltage between Q1 and Q2 out the use of expensive high value resistors. Accuracy at and at 100pA by the inverting bias current of the LT1008.
Ammeter with Six Decade Range
10k 15V Q3 100μA METER R1 2k 1.2k Q1 100pA 15V 549Ω 10k RANGE 1nA 2 CURRENT – 7 Q2 INPUT 6 33k LT1008 549Ω 3 + 4 10nA LT1004C-1.2 8 Q4 549Ω 1 –15V PIN 13 CA3146 100nA 549Ω 0.01μF 1μA Q1 TO Q4: RCA CA3146 TRANSISTOR ARRAY 549Ω CALIBRATION: ADJUST R1 FOR FULL SCALE 10μA DEFLECTION WITH 1μA INPUT CURRENT 549Ω 100μA 1008 TA11
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS
LT1012 Picoamp Input Current, Microvolt Offset, Low Noise Op Amp Internally Compensated LT1008 LT1112 Dual Low Power, Precision, Picoamp Input Op Amp Dual LT1012 LT1880 SOT-23, Rail-to-Rail Output, Picoamp Input Current Precision Op Amp Single SOT-23 Version of LT1884 LT1881/LT1882 Dual and Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps Dual/Quad CLOAD Stable LT1884/LT1885 Dual and Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps Dual/Quad Faster LT1881/LT1882 1008fb LT 0607 REV B • PRINTED IN THE USA 16 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORATION 1991
U TYPICAL APPLICATIO
Ammeter measures currents from 100pA to 100μA with- 100μA is limited by the offset voltage between Q1 and Q2 out the use of expensive high value resistors. Accuracy at and at 100pA by the inverting bias current of the LT1008.
Ammeter with Six Decade Range
10k 15V Q3 100μA METER R1 2k 1.2k Q1 100pA 15V 549Ω 10k RANGE 1nA 2 CURRENT – 7 Q2 INPUT 6 33k LT1008 549Ω 3 + 4 10nA LT1004C-1.2 8 Q4 549Ω 1 –15V PIN 13 CA3146 100nA 549Ω 0.01μF 1μA Q1 TO Q4: RCA CA3146 TRANSISTOR ARRAY 549Ω CALIBRATION: ADJUST R1 FOR FULL SCALE 10μA DEFLECTION WITH 1μA INPUT CURRENT 549Ω 100μA 1008 TA11
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS
LT1012 Picoamp Input Current, Microvolt Offset, Low Noise Op Amp Internally Compensated LT1008 LT1112 Dual Low Power, Precision, Picoamp Input Op Amp Dual LT1012 LT1880 SOT-23, Rail-to-Rail Output, Picoamp Input Current Precision Op Amp Single SOT-23 Version of LT1884 LT1881/LT1882 Dual and Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps Dual/Quad CLOAD Stable LT1884/LT1885 Dual and Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps Dual/Quad Faster LT1881/LT1882 1008fb LT 0607 REV B • PRINTED IN THE USA 16 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORATION 1991