Datasheet Texas Instruments OPA3684
| Manufacturer | Texas Instruments |
| Series | OPA3684 |
Low-Power, Triple Current Feedback Operational Amplifier with Disable
Datasheets
Low-Power, Triple Current Feedback Operational Amplifier with Disable datasheet
PDF, 1.3 Mb, Revision: C, File published: Jul 2, 2008
Extract from the document
Prices
Status
| OPA3684ID | OPA3684IDBQ | OPA3684IDBQT | OPA3684IDG4 | OPA3684IDR | OPA3684IDRG4 | |
|---|---|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Preview (Device has been announced but is not in production. Samples may or may not be available) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No | No | No | No | No | No |
Packaging
| OPA3684ID | OPA3684IDBQ | OPA3684IDBQT | OPA3684IDG4 | OPA3684IDR | OPA3684IDRG4 | |
|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 |
| Pin | 14 | 16 | 16 | 14 | 14 | 14 |
| Package Type | D | DBQ | DBQ | D | D | D |
| Industry STD Term | SOIC | SSOP | SSOP | SOIC | SOIC | SOIC |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G |
| Package QTY | 50 | 250 | 50 | 2500 | 2500 | |
| Carrier | TUBE | SMALL T&R | TUBE | LARGE T&R | LARGE T&R | |
| Device Marking | OPA3684 | 3684 | OPA3684 | OPA3684 | OPA3684 | |
| Width (mm) | 3.91 | 3.9 | 3.9 | 3.91 | 3.91 | 3.91 |
| Length (mm) | 8.65 | 4.9 | 4.9 | 8.65 | 8.65 | 8.65 |
| Thickness (mm) | 1.58 | 1.5 | 1.5 | 1.58 | 1.58 | 1.58 |
| Pitch (mm) | 1.27 | .64 | .64 | 1.27 | 1.27 | 1.27 |
| Max Height (mm) | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 |
| Mechanical Data | Download | Download | Download | Download | Download | Download |
Parametrics
| Parameters / Models | OPA3684ID | OPA3684IDBQ | OPA3684IDBQT | OPA3684IDG4 | OPA3684IDR | OPA3684IDRG4 |
|---|---|---|---|---|---|---|
| 2nd Harmonic, dBc | 67 | 67 | 67 | 67 | 67 | |
| 2nd Harmonic(dBc) | 67 | |||||
| 3rd Harmonic, dBc | 70 | 70 | 70 | 70 | 70 | |
| 3rd Harmonic(dBc) | 70 | |||||
| @ MHz | 5 | 5 | 5 | 5 | 5 | 5 |
| Acl, min spec gain, V/V | 1 | 1 | 1 | 1 | 1 | |
| Acl, min spec gain(V/V) | 1 | |||||
| Additional Features | Shutdown | Shutdown | Shutdown | Shutdown | Shutdown | Shutdown |
| Approx. Price (US$) | 2.75 | 1ku | |||||
| Architecture | Bipolar,Current FB | Bipolar Current FB | Bipolar,Current FB | Bipolar,Current FB | Bipolar,Current FB | Bipolar,Current FB |
| BW @ Acl, MHz | 210 | 210 | 210 | 210 | 210 | |
| BW @ Acl(MHz) | 210 | |||||
| CMRR(Min), dB | 53 | 53 | 53 | 53 | 53 | |
| CMRR(Min)(dB) | 53 | |||||
| CMRR(Typ), dB | 60 | 60 | 60 | 60 | 60 | |
| CMRR(Typ)(dB) | 60 | |||||
| GBW(Typ), MHz | 210 | 210 | 210 | 210 | 210 | |
| GBW(Typ)(MHz) | 210 | |||||
| Input Bias Current(Max), pA | 10000000 | 10000000 | 10000000 | 10000000 | 10000000 | |
| Input Bias Current(Max)(pA) | 10000000 | |||||
| Iq per channel(Max), mA | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | |
| Iq per channel(Max)(mA) | 1.8 | |||||
| Iq per channel(Typ), mA | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | |
| Iq per channel(Typ)(mA) | 1.7 | |||||
| Number of Channels | 3 | 3 | 3 | 3 | 3 | |
| Number of Channels(#) | 3 | |||||
| Offset Drift(Typ), uV/C | 12 | 12 | 12 | 12 | 12 | |
| Offset Drift(Typ)(uV/C) | 12 | |||||
| Operating Temperature Range, C | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | |
| Operating Temperature Range(C) | -40 to 85 | |||||
| Output Current(Typ), mA | 120 | 120 | 120 | 120 | 120 | |
| Output Current(Typ)(mA) | 120 | |||||
| Package Group | SOIC | SSOP | SSOP | SOIC | SOIC | SOIC |
| Package Size: mm2:W x L, PKG | 14SOIC: 52 mm2: 6 x 8.65(SOIC) | 16SSOP: 19 mm2: 3.9 x 4.9(SSOP) | 14SOIC: 52 mm2: 6 x 8.65(SOIC) | 14SOIC: 52 mm2: 6 x 8.65(SOIC) | 14SOIC: 52 mm2: 6 x 8.65(SOIC) | |
| Package Size: mm2:W x L (PKG) | 16SSOP: 19 mm2: 3.9 x 4.9(SSOP) | |||||
| Rail-to-Rail | No | No | No | No | No | No |
| Rating | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| Slew Rate(Typ), V/us | 820 | 820 | 820 | 820 | 820 | |
| Slew Rate(Typ)(V/us) | 820 | |||||
| Total Supply Voltage(Max), +5V=5, +/-5V=10 | 12 | 12 | 12 | 12 | 12 | |
| Total Supply Voltage(Max)(+5V=5, +/-5V=10) | 12 | |||||
| Total Supply Voltage(Min), +5V=5, +/-5V=10 | 5 | 5 | 5 | 5 | 5 | |
| Total Supply Voltage(Min)(+5V=5, +/-5V=10) | 5 | |||||
| Vn at 1kHz(Typ), nV/rtHz | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | |
| Vn at Flatband(Typ), nV/rtHz | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | |
| Vn at Flatband(Typ)(nV/rtHz) | 3.7 | |||||
| Vos (Offset Voltage @ 25C)(Max), mV | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | |
| Vos (Offset Voltage @ 25C)(Max)(mV) | 3.5 |
Eco Plan
| OPA3684ID | OPA3684IDBQ | OPA3684IDBQT | OPA3684IDG4 | OPA3684IDR | OPA3684IDRG4 | |
|---|---|---|---|---|---|---|
| RoHS | Compliant | Not Compliant | Compliant | Compliant | Compliant | Compliant |
| Pb Free | No |
Application Notes
- Current Feedback Amplifiers: Review, Stability Analysis, and ApplicationsPDF, 53 Kb, File published: Nov 20, 2000
The majority of op amp circuits are closed-loop feedback systems that implement classical control theory analysis. Analog designers are comfortable with Voltage FeedBack (VFB) op amps in a closed-loop system and are familiar with the ideal op amp approximations feedback permit. This application bulletin will demonstrate how CFB op amps can be analyzed in a similar fashion. Once the closed-loop sim - Stabilizing Current-Feedback Op Amps While Optimizing Circuit PerformancePDF, 280 Kb, File published: Apr 28, 2004
Optimizing a circuit design with a current-feedback (CFB) op amp is a relatively straightforward task, once one understands how CFB op amps achieve stability. This application note explains a 2nd-order CFB model so that any designer can better understand the flexibility of the CFB op amp. This report also discusses stability analysis, the effects of parasitic components due to PCBs, optimization - Active filters using current-feedback amplifiersPDF, 227 Kb, File published: Feb 25, 2005
- Expanding the usability of current-feedback amplifiersPDF, 215 Kb, File published: Feb 28, 2005
- Noise Analysis for High Speed Op Amps (Rev. A)PDF, 256 Kb, Revision: A, File published: Jan 17, 2005
As system bandwidths have increased an accurate estimate of the noise contribution for each element in the signal channel has become increasingly important. Many designers are not however particularly comfortable with the calculations required to predict the total noise for an op amp or in the conversions between the different descriptions of noise. Considerable inconsistency between manufactu - Tuning in AmplifiersPDF, 44 Kb, File published: Oct 2, 2000
Have you ever had the experience of designing an analog gain block with an amplifier that is specified to be unity gain stable only to find that it is oscillating out of control in your circuit? Or have you ever replaced a stable voltage feedback amplifier with a current feedback amplifier to find that the current feedback amplifier immediately oscillates when placed in the amplifier socket? Oscil - Single-Supply Operation of Operational AmplifiersPDF, 77 Kb, File published: Oct 2, 2000
Operation of op amps from single supply voltages is useful when negative supply voltages are not available. Furthermore, certain applications using high voltage and high current op amps can derive important benefits from single supply operation. - Op Amp Performance AnalysisPDF, 76 Kb, File published: Oct 2, 2000
This bulletin reflects the analysis power gained through knowledge of an op amp circuit's feedback factor. Feedback dictates the performance of an op amp both in function and in quality. The major specifications of the amplifier descibe an open-loop device awaiting feedback direction of the end circuit's function. Just how well the amplifier performs the function reflects through the feedback inte
Model Line
Series: OPA3684 (6)
Manufacturer's Classification
- Semiconductors> Amplifiers> Operational Amplifiers (Op Amps)> High-Speed Op Amps (>=50MHz)
