INA381A1QDGSRQ1
  • Share:

Texas Instruments INA381A1QDGSRQ1

Manufacturer No:
INA381A1QDGSRQ1
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
CURRENT SENSE AMPLIFIER
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The INA381A1QDGSRQ1, produced by Texas Instruments, is a highly advanced current-sensing amplifier with an integrated high-speed comparator. This device is specifically designed for both low-side and high-side current-sensing and protection applications. It features a zero-drift topology, enabling high-precision measurements across a wide range of common-mode voltages. The INA381A1QDGSRQ1 is qualified for automotive applications and meets the AEC-Q100 standards, ensuring reliability and performance in harsh environments.

Key Specifications

Parameter Value
Package VSSOP (DGS) - 10 pins
Operating Temperature Range –40°C to +125°C
Supply Voltage 2.7 V to 5.5 V
Maximum Supply Current 350 µA
Common-Mode Input Range –0.2 V to +26 V
Offset Voltage at 25°C 500 µV (max) at VCM = 12 V, 150 µV (max) at VCM = 0 V
Offset Voltage Drift 1 µV/°C (max)
Gain Error at 25°C 1% (max)
Gain Error Drift 20 ppm/°C (max)
Amplifier Gain 20 V/V (INA381A1), 50 V/V (INA381A2), 100 V/V (INA381A3), 200 V/V (INA381A4)
Comparator Hysteresis 50 mV
Comparator Propagation Delay 400 ns (typ)

Key Features

  • Qualified for automotive applications and AEC-Q100 certified with a device temperature grade 1: –40°C to +125°C.
  • Functional safety-capable.
  • Zero-drift topology for high-precision measurements with low offset voltage (150 µV max at VCM = 0 V) and low temperature drift (1 µV/°C max).
  • Wide input common-mode voltage range: –0.2 V to +26 V, independent of the supply voltage.
  • High-speed comparator with 50 mV hysteresis and 400 ns propagation delay.
  • Alert threshold set through external reference voltage; supports transparent and latching modes.
  • Operates from a single supply voltage of 2.7 V to 5.5 V.
  • Available in a 10-pin VSSOP package.

Applications

  • Merchant network and server power supplies.
  • Merchant DC/DC converters.
  • DC-input BLDC motor drives.
  • Cordless power tools.
  • Headsets, headphones, and earbuds.

Q & A

  1. What is the operating temperature range of the INA381A1QDGSRQ1?

    The operating temperature range is –40°C to +125°C.

  2. What is the supply voltage range for the INA381A1QDGSRQ1?

    The supply voltage range is 2.7 V to 5.5 V.

  3. What is the maximum supply current of the INA381A1QDGSRQ1?

    The maximum supply current is 350 µA.

  4. What is the common-mode input range of the INA381A1QDGSRQ1?

    The common-mode input range is –0.2 V to +26 V.

  5. What are the available amplifier gains for the INA381-Q1 series?

    The available amplifier gains are 20 V/V, 50 V/V, 100 V/V, and 200 V/V.

  6. How does the comparator in the INA381A1QDGSRQ1 operate?

    The comparator operates with a hysteresis of 50 mV and a propagation delay of 400 ns. It supports both transparent and latching modes.

  7. What is the significance of the zero-drift topology in the INA381A1QDGSRQ1?

    The zero-drift topology enables high-precision measurements with low offset voltage and low temperature drift, allowing for more accurate current sensing.

  8. What are some typical applications of the INA381A1QDGSRQ1?

    Typical applications include merchant network and server power supplies, DC/DC converters, DC-input BLDC motor drives, cordless power tools, and headsets, headphones, and earbuds.

  9. Is the INA381A1QDGSRQ1 qualified for automotive use?

    Yes, it is qualified for automotive applications and meets the AEC-Q100 standards.

  10. What package type is the INA381A1QDGSRQ1 available in?

    The INA381A1QDGSRQ1 is available in a 10-pin VSSOP package.

Product Attributes

Function:Current Sense
Sensing Method:High/Low-Side
Accuracy:±1%
Voltage - Input:0V ~ 26V
Current - Output:- 
Operating Temperature:-40°C ~ 125°C (TA)
Mounting Type:Surface Mount
Package / Case:10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package:10-VSSOP
0 Remaining View Similar

In Stock

$0.90
729

Please send RFQ , we will respond immediately.

Same Series
RD15S10HE2X/AA
RD15S10HE2X/AA
CONN D-SUB RCPT 15POS CRIMP
DD15S2S5WV50/AA
DD15S2S5WV50/AA
CONN D-SUB HD RCPT 15P SLDR CUP
DD15S20WT2S/AA
DD15S20WT2S/AA
CONN D-SUB HD RCPT 15P SLDR CUP
CBC13W3S10HE20/AA
CBC13W3S10HE20/AA
CONN D-SUB RCPT 13POS CRIMP
DD15S200E2S/AA
DD15S200E2S/AA
CONN D-SUB HD RCPT 15P SLDR CUP
CBC47W1S100E30
CBC47W1S100E30
CONN D-SUB RCPT 47POS CRIMP
DD26M20HE30/AA
DD26M20HE30/AA
CONN D-SUB HD PLUG 26P SLDR CUP
DD44S32000X/AA
DD44S32000X/AA
CONN D-SUB HD RCPT 44P VERT SLDR
DD26S10HV30/AA
DD26S10HV30/AA
CONN D-SUB HD RCPT 26POS CRIMP
DD15S20JVLS
DD15S20JVLS
CONN D-SUB HD RCPT 15P SLDR CUP
DD26S2S50T20/AA
DD26S2S50T20/AA
CONN D-SUB HD RCPT 26P SLDR CUP
CBC47W1S1S50V5S
CBC47W1S1S50V5S
CONN D-SUB RCPT 47POS CRIMP

Similar Products

Part Number INA381A1QDGSRQ1 INA381A3QDGSRQ1 INA381A2QDGSRQ1 INA381A4QDGSRQ1
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active
Function Current Sense Current Sense Current Sense Current Sense
Sensing Method High/Low-Side High/Low-Side High/Low-Side High/Low-Side
Accuracy ±1% ±1% ±1% ±1%
Voltage - Input 0V ~ 26V 0V ~ 26V 0V ~ 26V 0V ~ 26V
Current - Output - - - -
Operating Temperature -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package 10-VSSOP 10-VSSOP 10-VSSOP 10-VSSOP

Related Product By Categories

AD8210YRZ-REEL7
AD8210YRZ-REEL7
Analog Devices Inc.
IC CURRENT MONITOR 0.5% 8SOIC
NSI45060JDT4G
NSI45060JDT4G
onsemi
IC LED DRVR SBT CCR DPAK
INA199A1DCKR
INA199A1DCKR
Texas Instruments
IC OPAMP CURR SENSE 14KHZ SC70-6
INA3221AQRGVRQ1
INA3221AQRGVRQ1
Texas Instruments
IC CURRENT SHUNT MONITOR 16VQFN
INA201AIDGKR
INA201AIDGKR
Texas Instruments
IC CURRENT MONITOR 3.5% 8VSSOP
INA219AID
INA219AID
Texas Instruments
IC CURRENT MONITOR 1% 8SOIC
TPS259530DSGR
TPS259530DSGR
Texas Instruments
IC PWR MGMT EFUSE 2.7-18V 8WSON
TPS25921LD
TPS25921LD
Texas Instruments
IC PWR MGR EFUSE 18V 8SOIC
TPS25944ARVCT
TPS25944ARVCT
Texas Instruments
IC PWR MGMT EFUSE 2.7-18V 20WQFN
INA201AIDGKT
INA201AIDGKT
Texas Instruments
IC CURRENT MONITOR 3.5% 8VSSOP
AD8215YRZ-R7
AD8215YRZ-R7
Analog Devices Inc.
IC CURRENT MONITOR 0.15% 8SOIC
INA196AIDBVRG4
INA196AIDBVRG4
Texas Instruments
IC CURRENT MONITOR 3% SOT23-5

Related Product By Brand

TLV5535IPWR
TLV5535IPWR
Texas Instruments
IC ADC 8BIT PIPELINED 28TSSOP
DAC902E
DAC902E
Texas Instruments
IC DAC 12BIT A-OUT 28TSSOP
DAC121C085CIMMX/NOPB
DAC121C085CIMMX/NOPB
Texas Instruments
IC DAC 12BIT V-OUT 8VSSOP
TMS320DM6435ZWT6
TMS320DM6435ZWT6
Texas Instruments
IC DGTL MEDIA PROCESSOR 361-BGA
MUX508IDR
MUX508IDR
Texas Instruments
IC MULTIPLEXER 8CH 16SOIC
AM26LS32ACNSR
AM26LS32ACNSR
Texas Instruments
IC RECEIVER 0/4 16SO
TL3016ID
TL3016ID
Texas Instruments
IC HS LP COMP 8-SOIC
SN74LVTH244APWR
SN74LVTH244APWR
Texas Instruments
IC BUF NON-INVERT 3.6V 20TSSOP
SN74ALVTH162827GR
SN74ALVTH162827GR
Texas Instruments
IC BUF NON-INVERT 3.6V 56TSSOP
LM5109ASD/NOPB
LM5109ASD/NOPB
Texas Instruments
IC GATE DRVR HALF-BRIDGE 8WSON
TPS73625DBVR
TPS73625DBVR
Texas Instruments
IC REG LINEAR 2.5V 400MA SOT23-5
LP2985IM5-3.1/NOPB
LP2985IM5-3.1/NOPB
Texas Instruments
IC REG LINEAR 3.1V 150MA SOT23-5