LM293A

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Dual precision standard comparator, extended temperature

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Product details

Parameters

Number of channels (#) 2 Output type Open Collector Propagation delay time (µs) 1.3 Vs (Max) (V) 36 Vs (Min) (V) 2 Vos (offset voltage @ 25 C) (Max) (mV) 2 Iq per channel (Typ) (mA) 0.4 Input bias current (+/-) (Max) (nA) 50 Rail-to-rail Out Rating Catalog Operating temperature range (C) -25 to 85 Features Standard comparator VICR (Max) (V) 34.5 VICR (Min) (V) 0 Approx. price (US$) 0.06 | 1ku open-in-new Find other Comparators

Package | Pins | Size

SOIC (D) 8 19 mm² 3.91 x 4.9 SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other Comparators
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Technical documentation

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Type Title Date
* Datasheet LM393B, LM2903B, LM193, LM293, LM393 and LM2903 Dual Comparators datasheet (Rev. AC) Feb. 19, 2020
More literature The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Technical articles Op Amps used as Comparators—is it okay? Mar. 14, 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION MODELS Download
SLCJ009.ZIP (0 KB) - PSpice Model
SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

Reference designs

REFERENCE DESIGNS Download
800-W High efficiency bridgeless Power Factor Correction (PFC) reference design
PMP40261 — This reference design is a bridgeless PFC circuit using UCC28070 Interleaving CCM PFC controller to provide 390-V /2-A output from universal AC input. The circuit uses Average Current Mode PWM control with advanced internal current synthesizer for current sensing. This design achieves 96.57% peak (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
98% Efficiency Analog 24V to 36V, 500W Backup and 50W Charger Reference Design for DC UPS
TIDA-01558 — This analog, bidirectional power conversion reference design has a discharge or boost stage of 500 W and charge or buck stage of 50 W. This reference  design is made for 24-V battery pack and 30-V to 38-V bus voltage for use in DC-UPS, battery backup unit (BBU), local energy storage (LES) and (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
VSSOP (DGK) 8 View options

Ordering & quality

Support & training

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Videos

PWM generator circuit

This video discusses how to design a PWM generator circuit using op amps and comparators.

Posted: 09-Jan-2020
Duration: 05:59

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