LM234Z-3
  • Share:

National Semiconductor LM234Z-3

Manufacturer No:
LM234Z-3
Manufacturer:
National Semiconductor
Package:
Bulk
Description:
ANALOG RESISTANCE SENSOR, 0.001V
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The LM234Z-3 is a 3-terminal adjustable current source produced by National Semiconductor. It is part of the LM134/LM234/LM334 family, known for their adjustable current sources and true temperature sensing capabilities. The LM234Z-3 operates over a wide dynamic voltage range of 1V to 40V and is programmable from 1µA to 10mA. This device is ideal for various applications requiring precise current control and temperature sensing.

Key Specifications

Parameter Units Min Typ Max
V+ to V- Forward Voltage V 30 30
V+ to V- Reverse Voltage V 20
R Pin to V- Voltage V 5
Set Current mA 10
Power Dissipation mW 400
Operating Temperature Range °C -25 100
Set Current Error (V+=2.5V) % 1 2
Minimum Operating Voltage V 0.9 0.9

Key Features

  • Operates from 1V to 40V
  • 0.02%/V current regulation
  • Programmable from 1µA to 10mA
  • True 2-terminal operation
  • Available as fully specified temperature sensor
  • ±3% initial accuracy
  • True floating current source with no separate power supply connections
  • Reverse applied voltages of up to 20V draw only a few dozen microamperes of current, allowing operation as both a rectifier and current source in AC applications
  • Sense voltage directly proportional to absolute temperature (°K)
  • Zero drift operation achievable with additional resistor and diode

Applications

  • Bias networks
  • Surge protection
  • Low power reference
  • Ramp generation
  • LED driver
  • Temperature sensing
  • Remote sense applications due to immunity to series resistance in long wire runs

Q & A

  1. What is the operating voltage range of the LM234Z-3?

    The LM234Z-3 operates from 1V to 40V.

  2. What is the programmable current range of the LM234Z-3?

    The current is programmable from 1µA to 10mA.

  3. What is the initial accuracy of the LM234Z-3?

    The initial accuracy is ±3%.

  4. How does the LM234Z-3 handle reverse voltages?

    Reverse applied voltages of up to 20V will only draw a few dozen microamperes of current.

  5. What is the temperature dependence of the set current?

    The set current increases at approximately 0.33%/°C.

  6. Can the LM234Z-3 be used as a temperature sensor?
  7. What are the package options for the LM234Z-3?

    The device is available in TO-92 and SO-8 plastic packages.

  8. What is the operating temperature range of the LM234Z-3?

    The operating temperature range is from -25°C to +100°C.

  9. How does the LM234Z-3 handle ESD susceptibility?

    The device has an ESD susceptibility of 2000V.

  10. What are some common applications of the LM234Z-3?

    Common applications include bias networks, surge protection, low power reference, ramp generation, LED driver, and temperature sensing.

Product Attributes

Trip Temperature Threshold:- 
Switching Temperature:- 
Accuracy:- 
Current - Output (Max):- 
Output Type:- 
Output:- 
Output Function:- 
Selectable Hysteresis:- 
Features:- 
Voltage - Supply:- 
Current - Supply:- 
Operating Temperature:- 
Mounting Type:- 
Package / Case:- 
Supplier Device Package:- 
0 Remaining View Similar

In Stock

$1.43
630

Please send RFQ , we will respond immediately.

Same Series
RD15S10HT0/AA
RD15S10HT0/AA
CONN D-SUB RCPT 15POS CRIMP
DD62M3200T20/AA
DD62M3200T20/AA
CONN D-SUB HD PLUG 62P VERT SLDR
DD15S20Z00
DD15S20Z00
CONN D-SUB HD RCPT 15P SLDR CUP
CBC13W3S10HE20/AA
CBC13W3S10HE20/AA
CONN D-SUB RCPT 13POS CRIMP
CBC13W3S10HE2X/AA
CBC13W3S10HE2X/AA
CONN D-SUB RCPT 13POS CRIMP
DD15S20WES
DD15S20WES
CONN D-SUB HD RCPT 15P SLDR CUP
DD26S2S50TX/AA
DD26S2S50TX/AA
CONN D-SUB HD RCPT 26P SLDR CUP
DD26S2S50TX
DD26S2S50TX
CONN D-SUB HD RCPT 26P SLDR CUP
DD26S2S50T2X
DD26S2S50T2X
CONN D-SUB HD RCPT 26P SLDR CUP
DD62M32S50V3S/AA
DD62M32S50V3S/AA
CONN D-SUB HD PLUG 62P VERT SLDR
DD26S2S50V5X
DD26S2S50V5X
CONN D-SUB HD RCPT 26P SLDR CUP
DD44S32S0T2X/AA
DD44S32S0T2X/AA
CONN D-SUB HD RCPT 44P VERT SLDR

Related Product By Categories

TMP01EP
TMP01EP
Analog Devices Inc.
PROGRAMABLE TEMP. SENSOR
ADT6401SRJZ-RL7
ADT6401SRJZ-RL7
Analog Devices Inc.
THERMOSTAT PROG ACT LOW SOT23-6
LM234Z-3
LM234Z-3
National Semiconductor
ANALOG RESISTANCE SENSOR, 0.001V
LM57BISDX-5/NOPB
LM57BISDX-5/NOPB
Texas Instruments
THERMOSTAT PROG ACT HI/LOW 8WSON
TMP390AQDRLRQ1
TMP390AQDRLRQ1
Texas Instruments
DUAL TRIP TEMPERATURE SWITCH
TMP01FSZ-REEL7
TMP01FSZ-REEL7
Analog Devices Inc.
THERMOSTAT PROG ACT HIGH 8SOIC
TMP01FSZ-REEL
TMP01FSZ-REEL
Analog Devices Inc.
THERMOSTAT PROG ACT HIGH 8SOIC
TMP392A2DRLR
TMP392A2DRLR
Texas Instruments
DUAL TRIP TEMPERATURE SWITCH
LM26LVCISD-125/NOPB
LM26LVCISD-125/NOPB
Texas Instruments
THERMOSTAT 125DEGC OPN DRN 6WSON
LM57TPWR
LM57TPWR
Texas Instruments
THERMOSTAT PROG ACT HI/LO 8TSSOP
TMP01FP
TMP01FP
Analog Devices Inc.
THERMOSTAT PROG ACTIVE HIGH 8DIP
TMP01FS-REEL7
TMP01FS-REEL7
Analog Devices Inc.
THERMOSTAT PROG ACT HIGH 8SOIC

Related Product By Brand

CLC952ACMSA
CLC952ACMSA
National Semiconductor
IC ADC 12BIT 28SSOP
5962-9551301QEA
5962-9551301QEA
National Semiconductor
8-BIT SAR ADC
LMH6640MF/NOPB
LMH6640MF/NOPB
National Semiconductor
IC OPAMP VFB 1 CIRCUIT SOT23-5
LM258H
LM258H
National Semiconductor
IC OPAMP GP 2 CIRCUIT TO99-8
LM2611AMF-NS
LM2611AMF-NS
National Semiconductor
LM2611 1.4MHZ CUK CONVERTER
LP2985IBPX-2.8
LP2985IBPX-2.8
National Semiconductor
IC REG LINEAR 2.8V 150MA 5USMD
LP2985IBLX-3.0
LP2985IBLX-3.0
National Semiconductor
IC REG LINEAR FIXED LDO REG
LP2985IM5X-3.1/NOPB
LP2985IM5X-3.1/NOPB
National Semiconductor
IC REG LINEAR FIXED POS LDO REG
LP2985ITP-2.6/NOPB
LP2985ITP-2.6/NOPB
National Semiconductor
IC REG LINEAR 2.6V 150MA 5DSBGA
LP2981IM5-5.0
LP2981IM5-5.0
National Semiconductor
LP2981-N MICROPOWER 100 MA ULTRA
LP2985AITP-2.7
LP2985AITP-2.7
National Semiconductor
IC REG LINEAR 2.7V 150MA 5DSBGA
LM95241CIMM-2/NOPB
LM95241CIMM-2/NOPB
National Semiconductor
LM95241 +1.25C DUAL REMOTE LOCAL