Datasheet Texas Instruments LMH6645
| Manufacturer | Texas Instruments |
| Series | LMH6645 |
2.7V, 650ВµA, 55MHz, Rail-to-Rail Input and Output Amplifiers with Shutdown Option
Datasheets
LMH664x 2.7 V, 650 uA, 55 MHz, Rail-to-Rail I/O Amplifiers w/Shutdown Option datasheet
PDF, 1.7 Mb, Revision: D, File published: Nov 25, 2014
Extract from the document
Prices
Status
| LMH6645MA/NOPB | LMH6645MAX/NOPB | LMH6645MF/NOPB | LMH6645MFX/NOPB | |
|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | No | No | Yes |
Packaging
| LMH6645MA/NOPB | LMH6645MAX/NOPB | LMH6645MF/NOPB | LMH6645MFX/NOPB | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Pin | 8 | 8 | 5 | 5 |
| Package Type | D | D | DBV | DBV |
| Industry STD Term | SOIC | SOIC | SOT-23 | SOT-23 |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G |
| Package QTY | 95 | 2500 | 1000 | 3000 |
| Carrier | TUBE | LARGE T&R | LARGE T&R | LARGE T&R |
| Device Marking | LMH66 | 45MA | A68A | A68A |
| Width (mm) | 3.91 | 3.91 | 1.6 | 1.6 |
| Length (mm) | 4.9 | 4.9 | 2.9 | 2.9 |
| Thickness (mm) | 1.58 | 1.58 | 1.2 | 1.2 |
| Pitch (mm) | 1.27 | 1.27 | .95 | .95 |
| Max Height (mm) | 1.75 | 1.75 | 1.45 | 1.45 |
| Mechanical Data | Download | Download | Download | Download |
Parametrics
| Parameters / Models | LMH6645MA/NOPB | LMH6645MAX/NOPB | LMH6645MF/NOPB | LMH6645MFX/NOPB |
|---|---|---|---|---|
| 2nd Harmonic, dBc | 62 | 62 | 62 | 62 |
| 3rd Harmonic, dBc | 72 | 72 | 72 | 72 |
| @ MHz | 1 | 1 | 1 | 1 |
| Acl, min spec gain, V/V | 1 | 1 | 1 | 1 |
| Additional Features | N/A | N/A | N/A | N/A |
| Architecture | Bipolar,Voltage FB | Bipolar,Voltage FB | Bipolar,Voltage FB | Bipolar,Voltage FB |
| BW @ Acl, MHz | 55 | 55 | 55 | 55 |
| CMRR(Min), dB | 60 | 60 | 60 | 60 |
| CMRR(Typ), dB | 84 | 84 | 84 | 84 |
| GBW(Typ), MHz | 55 | 55 | 55 | 55 |
| Input Bias Current(Max), pA | 2000000 | 2000000 | 2000000 | 2000000 |
| Iq per channel(Max), mA | 1.6 | 1.6 | 1.6 | 1.6 |
| Iq per channel(Typ), mA | 0.725 | 0.725 | 0.725 | 0.725 |
| Number of Channels | 1 | 1 | 1 | 1 |
| Offset Drift(Typ), uV/C | 5 | 5 | 5 | 5 |
| Operating Temperature Range, C | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Output Current(Typ), mA | 20 | 20 | 20 | 20 |
| Package Group | SOIC | SOIC | SOT-23 | SOT-23 |
| Package Size: mm2:W x L, PKG | 8SOIC: 29 mm2: 6 x 4.9(SOIC) | 8SOIC: 29 mm2: 6 x 4.9(SOIC) | 5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) |
| Rail-to-Rail | In,Out | In,Out | In,Out | In,Out |
| Rating | Catalog | Catalog | Catalog | Catalog |
| Slew Rate(Typ), V/us | 22 | 22 | 22 | 22 |
| Total Supply Voltage(Max), +5V=5, +/-5V=10 | 12 | 12 | 12 | 12 |
| Total Supply Voltage(Min), +5V=5, +/-5V=10 | 2.5 | 2.5 | 2.5 | 2.5 |
| Vn at 1kHz(Typ), nV/rtHz | 17 | 17 | 17 | 17 |
| Vn at Flatband(Typ), nV/rtHz | 17 | 17 | 17 | 17 |
| Vos (Offset Voltage @ 25C)(Max), mV | 3 | 3 | 3 | 3 |
Eco Plan
| LMH6645MA/NOPB | LMH6645MAX/NOPB | LMH6645MF/NOPB | LMH6645MFX/NOPB | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
Application Notes
- AN-1515 A Comprehensive Study of the Howland Current Pump (Rev. A)PDF, 165 Kb, Revision: A, File published: Apr 26, 2013
It is well known to analog experts that you can use the positive and negative inputs of an operationalamplifier to make a high-impedance current source (current pump) using a conventional operationalamplifier (op amp). This basic circuit can put out both + and - output current (or zero current) into variousloads. The theory is simple. But the practical problems involved are not so simple or
Model Line
Series: LMH6645 (4)
Manufacturer's Classification
- Semiconductors> Amplifiers> Operational Amplifiers (Op Amps)> High-Speed Op Amps (>=50MHz)
