My Inquiry
My Account
Analog Devices Inc. LT3092ITS8#TRMPBF
- Part No.:
- LT3092ITS8#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Current Regulation/Management
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LT3092ITS8#TRMPBF.pdf
- Description:
- IC CURRENT SOURCE 1% TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:746
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT3092ITS8#TRMPBF from Analog Devices is a 2-terminal programmable current source IC delivering 0.5mA–200mA output with 1% initial SET pin current accuracy, <0.001%/V line regulation, and operation across 1.2V–40V input range. It requires only two external resistors, needs no input/output capacitors for stability, and is used in intrinsic safety circuits, remote sensor biasing, and precision current limiting.
For engineers reviewing the LT3092ITS8#TRMPBF datasheet, LT3092ITS8#TRMPBF pinout, LT3092ITS8#TRMPBF application, or LT3092ITS8#TRMPBF equivalent, key selection considerations include its 8-lead TSOT-23 package, Kelvin-sensed current regulation (<10 ppm/V), reverse-voltage/reverse-current protection, thermal shutdown, and compatibility with floating or ground-referred configurations.
Technical Context
The LT3092ITS8#TRMPBF implements a precision 10µA reference current source feeding the noninverting input of a power op-amp, enabling resistor-ratio-based current programming. Its architecture delivers high DC/AC impedance and operates without mandatory bypass capacitors-critical for intrinsically safe systems where energy storage is restricted.
It features internal reverse-battery and reverse-current protection, current limiting (200mA typical), and thermal shutdown with hysteresis. The device maintains regulation down to 0.5mA load and supports dropout voltages as low as 1.22V at 10mA, scaling to 1.65V at 200mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current Range | 0.5mA to 200mA - set by resistor ratio relative to internal 10µA reference; minimum 0.5mA required for regulation |
| Input Voltage Range | 1.2V to 40V - enables wide-supply operation including industrial and automotive rails |
| SET Pin Current Accuracy | ±1% initial tolerance - ensures predictable current programming without calibration |
| Line Regulation | <0.001%/V - minimizes output current drift over input voltage variation |
| Current Regulation | <10ppm/V from 1.5V–40V - provides stable current delivery under varying supply conditions |
| Dropout Voltage | 1.22V (10mA), 1.65V (200mA) - defines minimum VIN–VOUT headroom needed for regulation |
| Reference Noise | 0.7nARMS (10Hz–100kHz) - sets baseline current noise floor for precision applications |
Pinout & Package
LT3092ITS8#TRMPBF is housed in an 8-lead plastic TSOT-23 package (TS8), with exposed pad not present. Pin 1 is OUT, Pin 2 is OUT, Pin 3 is IN, Pin 4 is SET, Pin 5 is NC, Pin 6 is NC, Pin 7 is IN, Pin 8 is NC. The dual OUT and dual IN pins are internally connected and must be tied together externally for proper operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pins 1, 2) | Power Output Terminal | Delivers regulated current; connects to load return path; dual pins reduce resistance and improve thermal conduction |
| IN (Pins 3, 7) | Power Input Terminal | Supplies bias and load current; must be ≥1.22V above OUT for regulation at 10mA |
| SET (Pin 4) | Reference Current Source Output | Sinks precise 10µA (±1%) to program IOUT via RSET; noninverting input of internal op-amp |
| NC (Pins 5, 6, 8) | No Internal Connection | May be left floating or tied to IN/OUT/GND; no electrical function or thermal benefit |
Key Features
| Feature | Design Value |
|---|---|
| 2-Terminal Floating Operation | Enables series insertion into signal lines without ground reference-ideal for loop-powered sensors and intrinsic safety barriers |
| Capacitor-Free Stability | Eliminates need for input/output bypass caps, reducing BOM count and avoiding fault-energy storage in hazardous environments |
| Kelvin-Sensed Current Regulation | Ensures accurate current delivery independent of PCB trace resistance or contact losses in high-reliability wiring |
| Reverse-Voltage & Reverse-Current Protection | Prevents damage during incorrect polarity connection or back-driving-no external diodes required |
| AEC-Q100 Qualified (I Grade) | Validated for automotive ambient temperature range (–40°C to +125°C) and reliability stress testing per AEC standard |
Applications
| 4–20mA Current Loop Transmitter | Industrial Sensor Biasing |
|---|---|
Use Scenario: Provides stable 4–20mA loop current in field transmitters powered remotely via twisted-pair cable. IC Role / Device Role / Timing Role: 2-terminal floating current source regulating loop current based on sensor output voltage. Use Value: Enables single-supply, galvanically isolated loop design with <0.001%/V line regulation and no capacitor-induced fault energy. | Use Scenario: Supplies precise bias current to RTDs, strain gauges, and bridge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: GND-referred programmable current source setting excitation current independent of supply rail fluctuations. Use Value: Delivers 1% accurate 0.5–200mA bias with <10ppm/V regulation-improving measurement resolution and repeatability. |
| Intrinsic Safety Barrier | Precision Local Current Limiter |
Use Scenario: Limits fault current in hazardous-area instrumentation to comply with IEC 60079-11 energy limits. IC Role / Device Role / Timing Role: Intrinsically safe 2-terminal current limiter placed in series with signal path to cap maximum available energy. Use Value: Operates without input/output capacitors-eliminating spark/arcing risk-and includes thermal shutdown for sustained overload protection. | Use Scenario: Protects downstream analog circuitry (e.g., op-amps, ADC drivers) from overcurrent during startup or fault conditions. IC Role / Device Role / Timing Role: Adjustable current limiter inserted between local LDO and sensitive load, set to match load's max rating. Use Value: Replaces discrete current-limit solutions with ±1% accuracy, reverse-current blocking, and integrated thermal foldback. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2-terminal current source applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT3094IMS#PBF | Higher PSRR (120dB vs 90dB), lower noise (0.3nARMS), 3-terminal architecture requiring separate REF pin | Requires additional reference routing; better suited for ultra-low-noise precision DAC biasing than loop-powered field devices | Choose LT3094IMS#PBF when sub-nA noise and >100dB ripple rejection are critical, and board layout allows 3-terminal configuration. |
| LM334Z/NOPB | 3-pin TO-92; 1µA–10mA range; no reverse-protection; ±3% initial accuracy; requires external trim pot for adjustment | Limited to low-current, non-automotive, non-safety-critical applications due to lack of protection and wider tolerance | Choose LM334Z/NOPB only for cost-sensitive, low-power lab-grade biasing where 200mA capability and AEC-Q100 compliance are unnecessary. |
Compared with LT3092ITS8#TRMPBF, LT3094IMS#PBF offers superior noise and PSRR but sacrifices 2-terminal simplicity and intrinsic safety suitability; LM334Z/NOPB provides basic current sourcing at lower cost but lacks protection, accuracy, and automotive qualification-making LT3092ITS8#TRMPBF the optimal choice for robust, safety-compliant, medium-current applications.
Availability
LT3092ITS8#TRMPBF is available at Aetrix Electronics and suitable for industrial sensor interfaces, intrinsic safety barriers, and 4–20mA loop transmitter designs requiring stable component supply, automotive-grade reliability, and long-term lifecycle support.
Supply support for LT3092ITS8#TRMPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LT3092ITS8#TRMPBF belongs to Analog Devices' precision current source product line, engineered for applications demanding accurate, capacitor-free, protected current delivery in harsh or safety-critical environments.
FAQ
What is the minimum load current required for LT3092ITS8#TRMPBF to maintain regulation?
The LT3092ITS8#TRMPBF requires a minimum load current of 0.5mA to remain in regulation. Below this threshold, the device cannot sustain closed-loop control, and output current becomes unregulated. This value is specified in the Electrical Characteristics table under "Minimum Load Current" and is independent of input voltage within the 1.2V–40V operating range. Designers must ensure the total load-including any leakage paths-meets or exceeds 0.5mA.
Does LT3092ITS8#TRMPBF require input or output capacitors for stability?
No, LT3092ITS8#TRMPBF is inherently stable without input or output capacitors under typical conditions, a key feature enabling use in intrinsically safe applications. However, if long PCB traces or cables introduce inductive reactance, or if a capacitor is added across RSET for noise reduction, external compensation (e.g., series RC network or small damping resistors) may be necessary. Stability must be verified in situ with final layout and parasitics.
How is output current programmed on LT3092ITS8#TRMPBF?
Output current on LT3092ITS8#TRMPBF is programmed using two external resistors: RSET connected between SET and OUT, and ROUT connected between OUT and load. With a precise 10µA (±1%) current sourced from the SET pin, VSET = 10µA × RSET, and IOUT = VSET / ROUT + 10µA. For example, RSET = 20kΩ and ROUT = 100Ω yields IOUT ≈ 2.01mA. Resistor matching temperature coefficients minimizes drift.
What protection features does LT3092ITS8#TRMPBF include?
LT3092ITS8#TRMPBF integrates reverse-voltage protection (±40V on IN relative to OUT), reverse-current protection, current limiting (200mA typical), and thermal shutdown with hysteresis. These functions operate without external components, eliminating the need for series diodes or external current-sense circuitry. The device also withstands indefinite output short-circuit conditions without damage.
Is LT3092ITS8#TRMPBF qualified for automotive applications?
Yes, LT3092ITS8#TRMPBF is AEC-Q100 qualified for automotive applications (Grade I, –40°C to +125°C junction temperature). It undergoes stress testing per AEC-Q100 Rev H requirements, including HTOL, TC, UHAST, and ESD. The part marking "LTFJW" and ordering suffix "#TRMPBF" confirm its automotive-grade qualification and tape-and-reel packaging for automated assembly.
LT3092ITS8#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Source
- Sensing Method:
- -
- Accuracy:
- ±1%
- Voltage - Input:
- 1.2V ~ 40V
- Current - Output:
- 200mA
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
LT3092ITS8#TRMPBF FAQ
1.How can I place an order for LT3092ITS8#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT3092ITS8#TRMPBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LT3092ITS8#TRMPBF reliable?
The price and inventory of LT3092ITS8#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT3092ITS8#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT3092ITS8#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT3092ITS8#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT3092ITS8#TRMPBF?
LT3092ITS8#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT3092ITS8#TRMPBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LT3092ITS8#TRMPBF?
For technical support, including LT3092ITS8#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT3092ITS8#TRMPBF requirements.
6.How does Aetrix verify that LT3092ITS8#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT3092ITS8#TRMPBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LT3092ITS8#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT3092ITS8#TRMPBF?
All LT3092ITS8#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT3092ITS8#TRMPBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LT3092ITS8#TRMPBF part is unused and in its original packaging.
Return procedure for LT3092ITS8#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT3092ITS8#TRMPBF Tags
.jpg)
-
PSSI2021SAY,115
Nexperia USA Inc.
-
BCR401RE6327HTSA1
Infineon Technologies
-
INA199B2DCKR
Texas Instruments
-
INA199A1DCKR
Texas Instruments
-
INA199B1DCKR
Texas Instruments
-
NSI45015WT1G
onsemi
-
NSI45020T1G
onsemi
-
NSI45030AT1G
onsemi
-
NSI45025AT1G
onsemi
-
NSI45020AT1G
onsemi
-
NSI50010YT1G
onsemi
-
LM334Z/NOPB
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
