LT1720CDD#PBF Linear Technology Integrated Circuit (Small Outline No-lead) In Stock
Linear Technology LT1720CDD#PBF is a dual general-purpose CMOS rail-to-rail comparator with push-pull output, 4.5 mV maximum input offset voltage, and 6 µA bias current, housed in a compact 8-pin 3×3 mm DFN package for space-efficient designs.
- Manufacturer
- Linear Technology
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LT1720CDD#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.6700(MOQ 3)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual comparator channels with CMOS rail-to-rail inputs supporting supply voltages from 2.7 V to 5.5 V for versatile mixed-signal designs
- Push-pull output compatible with both TTL and CMOS logic levels, eliminating the need for external pull-up resistors
- Ultra-compact 8-DFN (3×3 mm) package with maximum 4.5 mV input offset voltage enabling precise threshold detection in tight PCB layouts
Applications
The LT1720CDD#PBF is used in battery-powered portable instruments, window comparator circuits, and zero-crossing detectors where two independent rail-to-rail comparison channels must operate from a single 2.7 V to 5.5 V supply. Its push-pull output directly drives microcontroller GPIO inputs at 3.3 V or 5 V logic levels without external pull-up resistors. The 3×3 mm DFN package suits space-constrained analog front-end designs in wearables, IoT sensors, and industrial signal conditioning boards.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1698 |
| YTEOL | 9 |
| Amplifier Type | COMPARATOR |
| Average Bias Current-Max (IIB) | 6 µA |
| Input Offset Voltage-Max | 4500 µV |
| JESD-30 Code | S-PDSO-N8 |
| JESD-609 Code | e3 |
| Number of Functions | 2 |
| Output Type | PUSH-PULL |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Response Time-Nom | 7ns |
| Supply Current-Max | 14mA |
| Supply Voltage Limit-Max | 7V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## LT1720CDD#PBF Alternates Showing results | Image |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage range and input offset voltage spec does the LT1720CDD#PBF support?
The LT1720CDD#PBF operates from a 2.7 V to 5.5 V single supply, with a maximum input offset voltage of 4.5 mV (4500 µV) and a maximum average input bias current of 6 µA. These specs make it suitable for precision threshold detection in battery-powered 3.3 V and 5 V systems.
How does the push-pull output of the LT1720CDD#PBF simplify interface to digital logic compared to open-drain comparators?
The LT1720CDD#PBF's push-pull output actively drives both high and low logic levels without requiring an external pull-up resistor to VCC, reducing component count by at least 2 resistors in dual-channel designs and ensuring fast rise times at TTL and CMOS logic thresholds of 0.8 V and 2 V respectively.
Which compact PCB designs benefit from the 8-DFN 3×3 mm package of the LT1720CDD#PBF?
Wearable health monitors, IoT edge nodes, and portable data loggers benefit from the LT1720CDD#PBF's 8-DFN (3×3 mm) footprint, which occupies just 9 mm² of board area while providing 2 independent rail-to-rail comparator channels. This is roughly 60% smaller than an equivalent SO-8 package at 4.9×6 mm.
Is LT1720CDD#PBF a suitable alternative to LM393 in low-voltage 3.3 V applications?
Yes. The LT1720CDD#PBF operates down to 2.7 V with rail-to-rail inputs and a push-pull output, whereas the LM393 requires at least 2 V but uses open-drain output that demands an external pull-up and cannot source current. For 3.3 V systems, the LT1720CDD#PBF eliminates pull-up resistors and offers a 4.5 mV offset versus the LM393's typical 5 mV, improving threshold accuracy.
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| 19+ | $7.5100 | $142.69 |
| 25+ | $7.2800 | $182.00 |
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