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Analog Devices Inc. LT1460BIN8-2.5#PBF
- Part No.:
- LT1460BIN8-2.5#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1460BIN8-2.5#PBF.pdf
- Description:
- IC VREF SERIES 0.1% 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,618
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Product details
Overview
LT1460BIN8-2.5#PBF from Analog Devices (formerly Linear Technology) is an industrial-grade micropower precision bandgap voltage reference delivering 2.5V ±0.10% initial accuracy, 10ppm/°C max temperature coefficient over –40°C to +85°C, and 130µA max supply current. It supplies up to 20mA output current with 0.9V minimum input-output differential, enabling use in low-headroom precision regulators and data converters.
For engineers reviewing the LT1460BIN8-2.5#PBF datasheet, LT1460BIN8-2.5#PBF pinout, LT1460BIN8-2.5#PBF application, or LT1460BIN8-2.5#PBF equivalent, key selection criteria include guaranteed industrial temperature operation, no external output capacitor requirement, reverse battery protection, and stability with capacitive loads - critical for handheld instruments and battery-powered precision systems.
Technical Context
The LT1460BIN8-2.5#PBF employs curvature-compensated bandgap architecture to achieve low drift and high accuracy without trimming external components. Its internal thin-film resistor network is laser-trimmed for ±0.10% output voltage tolerance across the full –40°C to +85°C range.
It operates as a three-terminal series reference with active pass element, eliminating the need for external current-setting resistors. The device maintains stability with 0–1µF capacitive loads and exhibits 10ppm/°C max TC while drawing only 130µA at 2.5V output - enabling direct replacement of shunt references in space- and power-constrained designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5V ±0.10% (2.4975V to 2.5025V) - enables 16-bit ADC/DAC biasing with <±2.5 LSB error at 2.5V full scale |
| Temp Coefficient | 10ppm/°C max (–40°C to +85°C) - ensures ≤±850µV drift over industrial temperature range |
| Supply Current | 130µA max - supports >10-year battery life in 10µA-average-power handheld instruments |
| Output Current | 20mA sourcing capability - drives multiple op-amp references or SAR ADC reference inputs directly |
| Dropout Voltage | 0.9V min (IOUT = 0) - allows operation from 3.4V supply, compatible with single Li-ion or dual alkaline cells |
| Line Regulation | 10ppm/V (VIN = VOUT+2.5V to 20V) - contributes <±15ppm error across 16.5V input range |
| Load Regulation | 70ppm/mA (0–20mA, 0°C to 70°C) - adds <±1.4mV error across full load range |
Pinout & Package
LT1460BIN8-2.5#PBF is housed in an 8-lead plastic DIP (N8) package with 0.300" wide body, through-hole mounting, and industry-standard pinout. Thermal resistance θJA = 130°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Input supply terminal; accepts 3.4V to 30V with ≥0.9V headroom over VOUT |
| 2 | DNC | No-connect pin; internally tied - must remain unconnected per datasheet |
| 3 | VOUT | Regulated 2.5V output; stable with 0–1µF capacitive loads, no external compensation required |
| 4 | DNC | No-connect pin; internally tied - must remain unconnected per datasheet |
| 5 | DNC | No-connect pin; internally tied - must remain unconnected per datasheet |
| 6 | DNC | No-connect pin; internally tied - must remain unconnected per datasheet |
| 7 | VOUT | Redundant output pin; electrically identical to Pin 3 - used for Kelvin sensing or low-impedance routing |
| 8 | GND | Analog ground reference; requires low-impedance connection to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-compensated bandgap | Enables 10ppm/°C max TC without external components or calibration |
| Laser-trimmed thin-film resistors | Guarantees ±0.10% initial accuracy across –40°C to +85°C without post-assembly trimming |
| No output capacitor required | Eliminates PCB area and cost of 1µF ceramic cap; supports fast settling (<1.5µs to 0.1%) |
| Reverse battery protection | Blocks conduction below –15V input, preventing damage during incorrect battery insertion |
| Stable with capacitive loads | Operates reliably with 0–1µF output capacitance - simplifies layout in noise-sensitive data acquisition |
Applications
| Handheld Instruments | Precision Regulators |
|---|---|
Use Scenario: Battery-powered multimeter requiring stable 2.5V reference for 16-bit ADC front-end over –10°C to +50°C ambient. IC Role / Device Role: Primary voltage reference for analog signal chain; supplies bias to instrumentation amplifier and ADC reference input. Use Value: 10ppm/°C TC and 130µA supply current extend battery life beyond 12 months while maintaining <±0.02% measurement accuracy. | Use Scenario: Low-noise LDO pre-regulator for FPGA core voltage, where input varies from 3.6V to 4.2V (Li-ion). IC Role / Device Role: Precision feedback reference for adjustable LDO control loop; sets output via resistor divider. Use Value: 0.9V dropout and ±0.10% accuracy enable tight regulation tolerance (±10mV) at 1.2V output with minimal headroom loss. |
| A/D and D/A Converters | Hard Disk Drives |
Use Scenario: Reference for 20-bit SAR ADC in medical sensor interface, operating continuously at +70°C ambient. IC Role / Device Role: High-stability reference source for ADC conversion; isolated from digital noise by dedicated ground plane. Use Value: Guaranteed 10ppm/°C TC and 40ppm/√kHr long-term stability ensure <±2 LSB drift over 5 years of field operation. | Use Scenario: Reference for voice coil motor (VCM) driver DAC in HDD servo control loop. IC Role / Device Role: Stable 2.5V bias for DAC that sets actuator position; exposed to mechanical shock and thermal cycling. Use Value: Reverse battery protection prevents latch-up during power sequencing faults; 20mA drive supports fast DAC settling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF02BPZ | 2.5V ±0.2% initial accuracy, 25ppm/°C TC, 1.2mA supply current, TO-99 metal can | Higher power dissipation and larger footprint; suited for lab-grade equipment, not portable devices | Select REF02BPZ only when legacy TO-99 compatibility or ultra-low noise (0.8µVRMS) is prioritized over size and efficiency |
| ADR441BRZ | 2.5V ±0.04% initial accuracy, 3ppm/°C TC, 800µA supply current, SOIC-8 | Higher precision and lower drift but 6× higher quiescent current; requires external decoupling cap | Choose ADR441BRZ when sub-ppm stability is mandatory and board space permits larger bypass capacitor |
Compared with REF02BPZ and ADR441BRZ, the LT1460BIN8-2.5#PBF offers optimal balance of industrial temperature rating, micropower operation (130µA), and zero-output-capacitor simplicity - making it uniquely suitable for cost-sensitive, battery-operated, and space-constrained precision systems where ±0.10% and 10ppm/°C meet design requirements.
Availability
LT1460BIN8-2.5#PBF is available at Aetrix Electronics and suitable for precision regulators, handheld test equipment, and industrial data acquisition systems requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LT1460BIN8-2.5#PBF 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 full product support, manufacturing, and documentation for the LT® family of precision analog ICs.
The LT1460 series was designed specifically for micropower, high-accuracy voltage referencing in portable and industrial instrumentation - emphasizing low drift, reverse protection, and capacitor-free stability without sacrificing output drive.
FAQ
What is the maximum operating temperature range for the LT1460BIN8-2.5#PBF?
The LT1460BIN8-2.5#PBF is specified for industrial temperature operation from –40°C to +85°C. This range is guaranteed by design and testing, and the device maintains its full parametric performance - including ±0.10% output accuracy and 10ppm/°C temperature coefficient - across this entire span. The absolute maximum junction temperature is 150°C.
Does the LT1460BIN8-2.5#PBF require an external output capacitor?
No, the LT1460BIN8-2.5#PBF does not require an external output capacitor and remains stable with 0–1µF capacitive loads. This eliminates board space, cost, and reliability risk associated with ceramic capacitors. The internal compensation ensures fast settling (<1.5µs to 0.1%) and immunity to capacitor aging or DC bias effects - a key differentiator versus most competing references.
What is the minimum input voltage required for the LT1460BIN8-2.5#PBF to regulate properly?
The LT1460BIN8-2.5#PBF requires a minimum input-to-output differential voltage of 0.9V at zero load and 1.3V at 10mA load. Therefore, with a nominal 2.5V output, the minimum valid input voltage is 3.4V (2.5V + 0.9V). This low dropout enables operation from single-cell lithium or dual alkaline supplies without intermediate regulation.
How does reverse battery protection work in the LT1460BIN8-2.5#PBF?
The LT1460BIN8-2.5#PBF incorporates internal circuitry that blocks conduction when the input voltage falls below –15V, preventing reverse current flow and protecting the device from damage during incorrect battery installation. Unlike discrete diode solutions, this feature adds no forward voltage drop or leakage in normal operation and requires no external components.
Can the LT1460BIN8-2.5#PBF drive a 20mA load while maintaining accuracy?
Yes, the LT1460BIN8-2.5#PBF is fully specified to supply up to 20mA output current while maintaining its guaranteed accuracy. At 20mA and 0°C to 70°C, load regulation is 70–140ppm/mA, contributing ≤±2.8mV (0.112%) error to the 2.5V output. This capability allows direct driving of multiple op-amps, ADC references, or DAC bias networks without external buffers.
LT1460BIN8-2.5#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 40 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 10µVp-p
- Noise - 10Hz to 10kHz:
- 10µVrms
- Voltage - Input:
- 3.4V ~ 20V
- Current - Supply:
- 165µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LT1460BIN8-2.5#PBF FAQ
1.How can I place an order for LT1460BIN8-2.5#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1460BIN8-2.5#PBF 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 LT1460BIN8-2.5#PBF reliable?
The price and inventory of LT1460BIN8-2.5#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1460BIN8-2.5#PBF is usually 5 days.
3.What payment methods are accepted for LT1460BIN8-2.5#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1460BIN8-2.5#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1460BIN8-2.5#PBF?
LT1460BIN8-2.5#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1460BIN8-2.5#PBF 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 LT1460BIN8-2.5#PBF?
For technical support, including LT1460BIN8-2.5#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1460BIN8-2.5#PBF requirements.
6.How does Aetrix verify that LT1460BIN8-2.5#PBF is sourced from the original manufacturer or authorized distributors?
All LT1460BIN8-2.5#PBF 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 LT1460BIN8-2.5#PBF meets industry standards.
7.What is the process for return or replacement of LT1460BIN8-2.5#PBF?
All LT1460BIN8-2.5#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1460BIN8-2.5#PBF, 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 LT1460BIN8-2.5#PBF part is unused and in its original packaging.
Return procedure for LT1460BIN8-2.5#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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