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TL331B

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High voltage, cost optimized, single channel comparator

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Product details

Parameters

Number of channels (#) 1 Output type Open-collector Propagation delay time (µs) 0.3 Vs (Max) (V) 36 Vs (Min) (V) 3 Vos (offset voltage @ 25 C) (Max) (mV) 2.5 Iq per channel (Typ) (mA) 0.21 Input bias current (+/-) (Max) (nA) 25 Rail-to-rail Out Rating Catalog Operating temperature range (C) -40 to 125 Features Standard comparator VICR (Max) (V) 34.5 VICR (Min) (V) 0 open-in-new Find other Comparators

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Comparators

Features

  • NEW TL331B and TL391B
  • Improved specifications of B-version
    • Maximum rating: up to 38 V
    • ESD rating (HBM): 2k V
    • Improved reverse voltage performance
    • Low input offset: 0.37 mV
    • Low input bias current: 3.5 nA
    • Low supply-current: 430 µA
    • Faster response time of 1 µsec
    • TL391B provides an alternate pinout
  • TL331B is improved drop-in replacement for TL331
  • Common-mode input voltage range includes ground
  • Differential input voltage range equal to maximum-rated supply voltage: ±38 V
  • Low output saturation voltage
  • Output compatible with TTL, MOS, and CMOS

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Description

The TL331B and TL391B devices are the next generation versions of the industry-standard TL331 comparator. These next generation devices provide outstanding value for cost-sensitive applications, with features including lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, wider temperature range and improved 2kV ESD performance with drop-in replacement convenience. The TL331B is a drop-in improved replacement for both the TL331I and TL331K versions, while the TL391B provides an alternate pinout of the TL331B to replace competitive devices.

Operation from dual supplies also is possible as long as the difference between the two supplies is within 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. Current drain is independent of the supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 2
Type Title Date
* Datasheet TL331B, TL391B and TL331 Single Comparators datasheet (Rev. I) Jul. 15, 2020
Technical articles Op Amps used as Comparators—is it okay? Mar. 14, 2012

Design & development

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

Features
  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost

Design tools & simulation

SIMULATION MODELS Download
SLVMDD4.TSC (15 KB) - TINA-TI Spice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
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 (...)
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Package Pins Download
SOT-23 (DBV) 5 View options

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