LM211DG

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LM211DG

+BOM

IC COMPARATOR SGL 36VDC 8-SOIC

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Specifications

Attribute Value
Supplier Rochester Electronics, LLC,onsemi
Package Tube,Tube
ProductStatus Obsolete
Type General Purpose
NumberofElements 1
OutputType DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL
Voltage-SupplySingle/Dual(±) 5V ~ 30V, ±2.5V ~ 15V
Voltage-InputOffset(Max) 3mV @ ±15V
Current-InputBias(Max) 0.1µA @ ±15V
Current-Quiescent(Max) 6mA
OperatingTemperature -40°C ~ 85°C
Package/Case 8-SOIC (0.154, 3.90mm Width)
MountingType Surface Mount

Overview

Description

LM211DG is a high-speed voltage comparator from Texas Instruments (LM211 family). It compares two analog inputs and outputs a digital signal via an open-collector (open-drain) output, so you need an external pull-up resistor. It’s designed for fast threshold/detection tasks (e.g., zero-crossing, PWM timing, fast comparators in control loops) and can run from a single or dual supply. The DG suffix indicates the RoHS-compliant package variant (typically 8-pin DIP/SOIC). For exact figures—propagation delay, input offset, supply range, and output current—consult the LM211 datasheet. Typical caveats: provide proper pull-up voltage, respect the input common-mode range (which includes the negative rail), and ensure compatibility with your logic level.

Equivalent

Equivalents (high‑speed voltage comparators) to LM211DG include:
- LM311 (single, open-collector)
- LM393 (dual)
- LM339 (quad)
- LM2901 (quad)
Note: choose based on required channel count, output type (open-collector), supply voltage, and speed. Other vendors’ similar high-speed comparators can also substitute if specs match.

Features

LM211DG is a high‑speed, internally compensated operational amplifier. Key features include:
- Internally compensated for easy closed‑loop use
- High slew rate and wide bandwidth for fast signals
- Unity‑gain stability
- Wide supply voltage range (suitable for single or dual supply)
- Input common‑mode range that includes the negative rail
- Output can swing close to the rails with proper load
- Low input bias current and low input offset voltage for precision
- Good temperature stability
- Available in 8‑pin DG package (standard TI package variant)
Note: exact electrical specs (slew rate, bandwidth, offset, rail‑to‑rail swing, and supply limits) are in the datasheet for precise design values.

Pinout

- Pin count: 8 pins (DIP-8/SO-8 packages).
- Function: a single high-speed voltage comparator (compares two input voltages and outputs a logic-level result).

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: An American multinational semiconductor company that designs and manufactures integrated circuits and related electronic components (analog, digital, microcontrollers, etc.).

Application

LM211DG is a high‑speed voltage comparator. Common applications include:
- Zero‑crossing/timing detectors in switching power supplies and motor drives
- PWM comparators and control loop thresholding
- A/D front‑end triggers and sample/hold timing
- Window/threshold detectors and reference sensing
- Data‑communications line receivers and demodulators
- Peak detectors and timing circuits
- Over/under‑voltage protection and fault detection in instrumentation and test equipment

Package

LM211DG comes in an 8-pin DIP (DIP-8) package, i.e., through-hole.

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