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Analog Devices Inc. LT1460EIS8-5#TRPBF
- Part No.:
- LT1460EIS8-5#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1460EIS8-5#TRPBF.pdf
- Description:
- IC VREF SERIES 0.125% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,007
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Product details
Overview
LT1460EIS8-5#TRPBF from Analog Devices (formerly Linear Technology) is a micropower precision series voltage reference delivering 5.000V ±0.125% initial accuracy, 20ppm/°C max temperature coefficient over –40°C to +85°C, and stable operation with capacitive loads up to 1µF. It supplies up to 20mA output current with only 175µA typical supply current, making it ideal for battery-powered instrumentation and high-resolution ADC/DAC biasing.
For engineers reviewing the LT1460EIS8-5#TRPBF datasheet, LT1460EIS8-5#TRPBF pinout, LT1460EIS8-5#TRPBF application, or LT1460EIS8-5#TRPBF equivalent, key selection criteria include industrial-temperature stability, dropout voltage of 0.9V min, no-output-capacitor requirement, reverse-battery protection, and SO-8 package compatibility with space-constrained PCB layouts.
Technical Context
The LT1460EIS8-5#TRPBF uses curvature-compensated bandgap architecture to achieve low thermal drift and trimmed thin-film resistors for high initial accuracy. Its internal pass transistor enables sourcing capability without external compensation components.
It operates across an input range of VOUT + 0.9V to 30V, maintains line regulation of 10–35ppm/V over wide VIN ranges, and exhibits load regulation of 70–140ppm/mA at 20mA - all specified across the full –40°C to +85°C industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.125% (4.99375V to 5.00625V) - ensures precise biasing for 16-bit+ data converters |
| Temp Coefficient | 20ppm/°C max (–40°C to +85°C) - guarantees <±1mV drift over full industrial range |
| Supply Current | 125µA to 225µA - enables multi-year operation on coin-cell batteries |
| Dropout Voltage | 0.9V min (at IOUT = 0) - supports low-voltage systems like 3.3V or 5V rails |
| Output Current | 20mA max sourcing - drives multiple op-amps or ADC reference inputs directly |
| Line Regulation | 10–35ppm/V - minimizes output variation during supply ripple or brownout |
| Load Regulation | 70–140ppm/mA at 20mA - maintains accuracy under dynamic load changes |
Pinout & Package
LT1460EIS8-5#TRPBF is housed in an 8-lead plastic SO (SO-8) package with exposed pad thermal enhancement (θJA = 190°C/W). Pin 1 is VIN, Pin 2 is VOUT, Pin 3 is GND; Pins 4–8 are internally connected and must remain unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input Supply | Accepts 5.9V to 30V; minimum 0.9V above VOUT for regulation |
| 2 (VOUT) | Reference Output | Stable 5.000V source; capable of sourcing up to 20mA |
| 3 (GND) | Ground Reference | Return path for supply and load current; requires low-impedance connection |
| 4–8 (DNC) | No Connect | Internally bonded; must not be wired externally to avoid malfunction |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Enables direct connection to ADC reference pins without stability risk - saves board area and BOM cost |
| Reverse battery protection | Blocks conduction below –15V input - prevents damage in automotive or field-deployed equipment |
| Capacitive load stability | Remains stable with 0–1µF output capacitance - eliminates need for isolation resistors in most designs |
| Low thermal regulation | 0.5–2.5ppm/mW - reduces output shift caused by self-heating during sustained 20mA loads |
| Industrial temperature grade | Specified from –40°C to +85°C - qualified for factory automation, test equipment, and outdoor sensors |
Applications
| Portable Multimeter Front-End | Industrial PLC Analog Input Module |
|---|---|
Use Scenario: High-precision DC voltage measurement using 24-bit sigma-delta ADC with auto-ranging. IC Role / Device Role / Timing Role: Provides stable 5.000V reference for ADC conversion and internal DAC calibration. Use Value: Enables ±0.005% measurement accuracy over –10°C to +60°C ambient, with no recalibration needed between field deployments. | Use Scenario: Isolated 4–20mA current loop receiver with cold-junction compensation. IC Role / Device Role / Timing Role: Supplies excitation voltage to RTD sensor bridge and reference for 16-bit SAR ADC. Use Value: Maintains <±1 LSB error across –40°C to +75°C operating range, meeting IEC 61000-6-2 immunity requirements. |
| Medical Patient Monitor ECG Signal Chain | Automotive Battery Management System |
Use Scenario: Low-noise analog front-end for biopotential amplification and digitization. IC Role / Device Role / Timing Role: Sets common-mode voltage and ADC reference for 12-bit successive-approximation converter. Use Value: Delivers 20µVRMS noise (10Hz–1kHz), enabling sub-1µV resolution in differential ECG acquisition. | Use Scenario: Cell voltage monitoring in 12S Li-ion battery pack with isolated CAN communication. IC Role / Device Role / Timing Role: Supplies precision reference for 14-bit delta-sigma ADC measuring individual cell voltages. Use Value: Supports ±1mV absolute accuracy per cell over full vehicle life cycle, critical for SOC estimation and safety cutoff. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5050IDR | 5.0V output, 3ppm/°C max drift, 100µA supply current, SO-8 package | Higher accuracy and lower drift but requires 1µF output capacitor for stability | Preferred when long-term stability (<10ppm/√kHr) and ultra-low drift dominate over board space constraints |
| ADR4550BRZ | 5.0V output, 3ppm/°C max drift, 950µA supply current, SO-8 package | Superior drift performance but 7× higher quiescent current limits battery life | Chosen for lab-grade instrumentation where power is not constrained and 0.1ppm/°C stability is mandatory |
Compared with REF5050IDR and ADR4550BRZ, the LT1460EIS8-5#TRPBF trades moderate drift (20ppm/°C) and relaxed initial accuracy (±0.125%) for micropower operation (175µA), capacitor-free stability, and reverse-battery protection - making it optimal for cost-sensitive, space-limited, and battery-operated industrial systems.
Availability
LT1460EIS8-5#TRPBF is available at Aetrix Electronics and suitable for portable instrumentation, industrial PLC analog modules, medical signal chains, and automotive battery monitors requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LT1460EIS8-5#TRPBF 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 acquired Linear Technology in 2017 and maintains its legacy of high-performance analog ICs for precision signal conditioning and power management.
The LT1460 series was designed specifically for micropower, high-accuracy voltage referencing in space- and energy-constrained systems - targeting handheld test gear, sensor transmitters, and portable medical devices.
FAQ
What is the maximum input voltage rating for LT1460EIS8-5#TRPBF?
The LT1460EIS8-5#TRPBF has an absolute maximum input voltage rating of +30V. Operation beyond this level risks permanent damage. For reliable long-term function, the recommended operating input range is VOUT + 0.9V (i.e., ≥5.9V) to 20V, as specified in the Electrical Characteristics table. Reverse voltage tolerance is –15V.
Does LT1460EIS8-5#TRPBF require an output capacitor for stability?
No, the LT1460EIS8-5#TRPBF is explicitly designed to be stable without any output capacitor - a key differentiator from many competing references. It remains stable with capacitive loads from 0 to 1µF, eliminating the need for external compensation and reducing PCB footprint. This feature is confirmed in the Applications Information section and Typical Performance Characteristics.
What is the guaranteed temperature range for LT1460EIS8-5#TRPBF?
The LT1460EIS8-5#TRPBF is guaranteed over the industrial temperature range of –40°C to +85°C. All key specifications - including output voltage accuracy (±0.125%), temperature coefficient (20ppm/°C max), line/load regulation, and supply current - are fully characterized and warranted across this range, as documented in the "Available Options" and "Electrical Characteristics" tables.
How does LT1460EIS8-5#TRPBF provide reverse battery protection?
The LT1460EIS8-5#TRPBF incorporates internal circuitry that blocks conduction when the input voltage falls below –15V. During reverse-battery events, it draws less than 10µA reverse leakage current and sustains no functional degradation - protecting downstream circuitry in automotive, portable, or field-serviceable equipment where polarity reversal is a known risk.
Can LT1460EIS8-5#TRPBF drive a 20mA load while maintaining accuracy?
Yes, the LT1460EIS8-5#TRPBF is rated to source up to 20mA while maintaining its specified accuracy. At 20mA, load regulation is 70–140ppm/mA (≤2.8mV deviation), and output voltage remains within ±0.125% of 5.000V across the full –40°C to +85°C range. Thermal regulation adds ≤2.5ppm/mW, well within system-level error budgets for precision analog designs.
LT1460EIS8-5#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 40 mA
- Tolerance:
- ±0.125%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 20µVp-p
- Noise - 10Hz to 10kHz:
- 20µVrms
- Voltage - Input:
- 5.9V ~ 20V
- Current - Supply:
- 225µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT1460EIS8-5#TRPBF FAQ
1.How can I place an order for LT1460EIS8-5#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1460EIS8-5#TRPBF 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 LT1460EIS8-5#TRPBF reliable?
The price and inventory of LT1460EIS8-5#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1460EIS8-5#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1460EIS8-5#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1460EIS8-5#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1460EIS8-5#TRPBF?
LT1460EIS8-5#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1460EIS8-5#TRPBF 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 LT1460EIS8-5#TRPBF?
For technical support, including LT1460EIS8-5#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1460EIS8-5#TRPBF requirements.
6.How does Aetrix verify that LT1460EIS8-5#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1460EIS8-5#TRPBF 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 LT1460EIS8-5#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1460EIS8-5#TRPBF?
All LT1460EIS8-5#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1460EIS8-5#TRPBF, 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 LT1460EIS8-5#TRPBF part is unused and in its original packaging.
Return procedure for LT1460EIS8-5#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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