LMC7221AIM5X/NOPB
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Texas Instruments LMC7221AIM5X/NOPB

Manufacturer No:
LMC7221AIM5X/NOPB
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC COMPAR TNY CMOS RR IN SOT23-5
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Product Introduction

Overview

The LMC7221AIM5X/NOPB is a micropower CMOS comparator produced by Texas Instruments. It is available in a space-saving 5-Pin SOT-23 package, making it ideal for space and weight critical designs. This comparator is also available in an 8-Pin SOIC package. The LMC7221 is characterized by its low power consumption, high speed, and rail-to-rail input capability, making it versatile for various applications.

Key Specifications

ParameterConditionsTypical ValueLimit
Input Offset Voltage (VOS)V+ = 5V3 mV8 mV (max)
Input Offset Voltage Temperature Drift (TCVOS)V+ = 5V1.0 μV/°C
Input Current (IB)0.04 pA
Common Mode Rejection Ratio (CMRR)V+ = 5.0V75 dB
Supply Current (IS)VOUT = Low7 μA at 5V14 μA (max)
Response TimeV+ = 5V4 μs
Output Voltage Low (VOL)ILOAD = 2.5 mA0.2 V0.4 V (max)
Operating Temperature Range-40°C to 85°C

Key Features

  • Tiny 5-Pin SOT-23 package saves space, with a thickness of less than 1.43 mm.
  • Ensured specifications at 2.7V, 5V, and 15V supplies.
  • Typical supply current of 7 μA at 5V.
  • Response time of 4 μs at 5V.
  • Open drain output that can be pulled up to a voltage higher or lower than the supply voltage.
  • Input common-mode range beyond V− and V+.
  • Low input current.

Applications

  • Mixed voltage battery-powered products.
  • Notebooks and PDAs.
  • PCMCIA cards.
  • Mobile communications.
  • Alarm and security circuits.
  • Driving low current LEDs.
  • Direct sensor interface.

Q & A

  1. What is the typical supply current of the LMC7221 at 5V? The typical supply current is 7 μA at 5V.
  2. What is the response time of the LMC7221 at 5V? The response time is 4 μs at 5V.
  3. What are the available package types for the LMC7221? The LMC7221 is available in 5-Pin SOT-23 and 8-Pin SOIC packages.
  4. What is the input common-mode range of the LMC7221? The input common-mode range is beyond V− and V+.
  5. Can the LMC7221 drive LEDs? Yes, the LMC7221 can drive small, high-efficiency LEDs with a 5-volt power supply.
  6. What is the operating temperature range of the LMC7221? The operating temperature range is -40°C to 85°C.
  7. How does the open drain output of the LMC7221 work? The open drain output can be pulled up with a resistor to a voltage which can be higher or lower than the supply voltage.
  8. What are some common applications of the LMC7221? Common applications include mixed voltage battery-powered products, notebooks, PDAs, PCMCIA cards, mobile communications, alarm and security circuits, and driving low current LEDs.
  9. How does the LMC7221 protect against input voltage exceeding the common mode range? Large value input resistors and additional protection devices like diodes can be used to protect against input voltage exceeding the common mode range.
  10. What is the significance of the rail-to-rail input capability of the LMC7221? The rail-to-rail input capability allows the comparator to operate effectively in mixed voltage systems.

Product Attributes

Type:General Purpose
Number of Elements:1
Output Type:Open Drain
Voltage - Supply, Single/Dual (±):2.7V ~ 15V, ±1.35V ~ 7.5V
Voltage - Input Offset (Max):5mV @ 5V
Current - Input Bias (Max):0.04pA @ 5V
Current - Output (Typ):30mA
Current - Quiescent (Max):14µA
CMRR, PSRR (Typ):75dB CMRR, 80dB PSRR
Propagation Delay (Max):10µs
Hysteresis:- 
Operating Temperature:-40°C ~ 85°C
Package / Case:SC-74A, SOT-753
Mounting Type:Surface Mount
Supplier Device Package:SOT-23-5
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Similar Products

Part Number LMC7221AIM5X/NOPB LMC7221BIM5X/NOPB LMC7221AIMX/NOPB LMC7211AIM5X/NOPB LMC7221AIM5/NOPB
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active Active
Type General Purpose General Purpose General Purpose General Purpose General Purpose
Number of Elements 1 1 1 1 1
Output Type Open Drain Open Drain Open Drain Push-Pull Open Drain
Voltage - Supply, Single/Dual (±) 2.7V ~ 15V, ±1.35V ~ 7.5V 2.7V ~ 15V, ±1.35V ~ 7.5V 2.7V ~ 15V, ±1.35V ~ 7.5V 2.7V ~ 15V, ±1.35V ~ 7.5V 2.7V ~ 15V, ±1.35V ~ 7.5V
Voltage - Input Offset (Max) 5mV @ 5V 15mV @ 5V 5mV @ 5V 5mV @ 5V 5mV @ 5V
Current - Input Bias (Max) 0.04pA @ 5V 0.04pA @ 5V 0.04pA @ 5V 0.04pA @ 5V 0.04pA @ 5V
Current - Output (Typ) 30mA 30mA 30mA 30mA 30mA
Current - Quiescent (Max) 14µA 14µA 14µA 14µA 14µA
CMRR, PSRR (Typ) 75dB CMRR, 80dB PSRR 75dB CMRR, 80dB PSRR 75dB CMRR, 80dB PSRR 75dB CMRR, 80dB PSRR 75dB CMRR, 80dB PSRR
Propagation Delay (Max) 10µs 10µs 10µs 10µs 10µs
Hysteresis - - - - -
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Package / Case SC-74A, SOT-753 SC-74A, SOT-753 8-SOIC (0.154", 3.90mm Width) SC-74A, SOT-753 SC-74A, SOT-753
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Supplier Device Package SOT-23-5 SOT-23-5 8-SOIC SOT-23-5 SOT-23-5

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