LT1721IS#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LT1721IS#PBF is a quad high-speed voltage comparator with push-pull outputs, 4 independent channels, maximum input offset voltage of 4500 µV, available in a 16-pin SOIC package.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- LT1721IS#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $8.4125(MOQ 3)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT1721IS#PBF?
- Quad comparator with 4 independent push-pull output channels in a single 16-pin SOIC package, reducing BOM count
- High-speed response suitable for time-critical threshold detection in fast signal chains
- Input bias current maximum 6 µA and push-pull output stage enable direct logic-level interfacing without external pull-up resistors
What is LT1721IS#PBF used for?
The LT1721IS#PBF is well-suited for high-speed window comparator circuits and zero-crossing detectors in power conversion and motor control systems. Its quad configuration with push-pull outputs simplifies multi-threshold detection in industrial ADC front-ends and overcurrent protection logic. Signal conditioning boards in test and measurement equipment also benefit from the 16-pin SOIC footprint and the four matched comparator channels.
What are the specifications of LT1721IS#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1610 (S16) |
| YTEOL | 10 |
| Amplifier Type | COMPARATOR |
| Average Bias Current-Max (IIB) | 6 µA |
| Input Offset Voltage-Max | 4500 µV |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e3 |
| Number of Functions | 4 |
| Output Type | PUSH-PULL |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| 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 | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
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 |
Where can I find the LT1721IS#PBF datasheet?
LT1721IS#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT1721IS#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output type does LT1721IS#PBF use and how does that simplify interfacing with logic circuits?
The LT1721IS#PBF features push-pull outputs on all 4 channels, delivering full rail-to-rail output swings without requiring external pull-up resistors. This simplifies direct interfacing with 3.3 V or 5 V CMOS logic, reduces component count, and improves switching speed compared to open-collector comparator alternatives.
How does packaging 4 comparator channels into LT1721IS#PBF benefit a motor-control board design?
Combining 4 comparators in a 16-pin SOIC saves significant board area versus using four separate single-comparator packages. On a compact motor-control PCB, this reduces the footprint by roughly 3 ICs, lowering routing complexity and BOM cost while keeping all threshold detection logic within a single 10 mm × 4 mm component area.
What is the maximum input offset voltage of LT1721IS#PBF and when does it matter in a design?
The maximum input offset voltage is 4500 µV (4.5 mV). This specification matters when detecting small differential signals close to a threshold. For example, in a battery over-voltage circuit monitoring a 100 mV window, a 4.5 mV offset represents 4.5% error, so designers should budget for it or use a lower-offset device for tighter thresholds.
Can LT1721IS#PBF replace quad comparator ICs from other manufacturers in existing designs?
In many cases yes. The LT1721IS#PBF is a 16-pin SOIC quad comparator with push-pull outputs, a common pin-compatible footprint. Designers migrating from devices with similar supply voltage ranges (typically 2.7 V to 6 V), comparable propagation delay specs, and the same output type can often substitute it with only a datasheet review to confirm pin mapping and bias current compatibility.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
More from Analog Devices
LT3062EDCB#TRPBF
Small Outline No-lead
Integrated Circuit
LT3062EDCB#TRMPBF
Small Outline No-lead
Integrated Circuit
LT8641IUDC#TRPBF
Other
Integrated Circuit
HMC412AMS8GTR
Small Outline Packages
Integrated Circuit
LT3062HMS8E#PBF
Small Outline Packages
Integrated Circuit
LT3062IMS8E#PBF
Small Outline Packages
Integrated Circuit
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 3+ | $12.5000 | $37.50 |
| 5+ | $11.1000 | $55.50 |
| 10+ | $11.0390 | $110.39 |
| 19+ | $10.2600 | $194.94 |
| 25+ | $9.9500 | $248.75 |
| 100+ | $8.4125 | $841.25 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit