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Analog Devices Inc. LT1460EIS8-5#PBF
- Part No.:
- LT1460EIS8-5#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1460EIS8-5#PBF.pdf
- Description:
- IC VREF SERIES 0.125% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,603
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Product details
Overview
LT1460EIS8-5#PBF from Analog Devices (formerly Linear Technology) is an industrial-grade 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 up to 20mA output current. It requires no output capacitor and features reverse battery protection, making it suitable for portable instrumentation and high-accuracy ADC/DAC biasing.
For engineers reviewing the LT1460EIS8-5#PBF datasheet, LT1460EIS8-5#PBF pinout, LT1460EIS8-5#PBF application, or LT1460EIS8-5#PBF equivalent, key selection criteria include dropout voltage (0.9V min), supply current (175µA typ), load regulation (140ppm/mA at 20mA), thermal regulation (2.5ppm/mW), and stability with capacitive loads without external compensation.
Technical Context
The LT1460EIS8-5#PBF employs curvature-compensated bandgap architecture to achieve low drift and high accuracy. Its internal thin-film resistor trimming enables 0.125% initial tolerance, and it operates across a wide input range (VOUT + 0.9V to 30V) while maintaining line regulation of ≤35ppm/V above VOUT + 2.5V.
Designed as a three-terminal series reference, it sinks zero quiescent current into ground and sources up to 20mA to the load. The device exhibits 20ppm/°C tempco over its full –40°C to 85°C operating range and delivers 5V output with 20µVRMS (10Hz–1kHz) noise performance.
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 |
| Tempco | 20ppm/°C max (–40°C to 85°C) - guarantees <±1mV drift over full industrial range |
| Supply Current | 175µA typical - enables multi-year battery life in handheld meters |
| Dropout Voltage | 0.9V min (IOUT = 0) - supports operation from low-voltage rails like 5.9V supplies |
| Load Regulation | 140ppm/mA max at 20mA - limits output shift to <1.4mV across full load range |
| Line Regulation | 35ppm/V max (VIN ≥ VOUT + 2.5V) - holds output stable despite input rail variation |
| Noise (10Hz–1kHz) | 20µVRMS - avoids quantization noise floor degradation in 24-bit sigma-delta ADCs |
Pinout & Package
LT1460EIS8-5#PBF is housed in an 8-lead plastic SO (Small Outline) package (S8), with exposed pad not connected internally. Pin 1 is VIN, Pin 2 is VOUT, Pin 3 is GND; Pins 4–8 are internally connected no-connects and must remain unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input Supply | Accepts 5.9V to 30V DC; minimum headroom 0.9V above VOUT |
| 2 (VOUT) | Reference Output | 5.000V regulated source; stable with 0–1µF capacitive loads |
| 3 (GND) | Ground Reference | Return path for load current; no ground-sink current required |
| 4–8 | No Connect (NC) | Internally bonded; must be left floating - no external connection allowed |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Enables space-constrained PCB layouts and eliminates capacitor aging/reliability concerns |
| Reverse battery protection | Blocks conduction below –15V input, preventing damage during field servicing or miswiring |
| 20mA output sourcing capability | Directly drives ADC reference inputs, op-amp bias networks, and DAC gain-setting resistors |
| Low thermal regulation (2.5ppm/mW) | Minimizes self-heating-induced drift during dynamic load transients |
| Stable with capacitive loads up to 1µF | Eliminates need for isolation resistors in filtering applications, preserving PSRR |
Applications
| Handheld Precision Meters | Precision ADC Biasing |
|---|---|
Use Scenario: Battery-powered digital multimeters requiring stable 5V reference over –10°C to 50°C ambient. IC Role / Device Role / Timing Role: Primary voltage reference for 24-bit sigma-delta ADC front-end. Use Value: 0.125% initial accuracy and 20ppm/°C tempco ensure <±2LSB error across temperature without calibration. | Use Scenario: Industrial data acquisition module digitizing ±10V sensor signals with 16-bit SAR ADC. IC Role / Device Role / Timing Role: High-stability 5V reference for ADC internal buffer and external gain stage. Use Value: 20µVRMS broadband noise prevents reference-induced quantization uncertainty. |
| Programmable Power Supplies | Hard Disk Drive Servo Control |
Use Scenario: Lab-grade bench power supply with digitally adjustable 0–30V output and 0.01% setpoint accuracy. IC Role / Device Role / Timing Role: Feedback reference for precision voltage control loop. Use Value: 35ppm/V line regulation ensures output stability despite AC/DC converter ripple on input rail. | Use Scenario: HDD voice coil motor driver IC requiring ultra-low-drift 5V bias for analog front-end comparators. IC Role / Device Role / Timing Role: Stable reference for threshold detection in position error signal (PES) circuitry. Use Value: Reverse battery protection prevents latch-up during hot-swap events in enterprise storage enclosures. |
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 | 5.000V output, 0.05% initial accuracy, 3ppm/°C max tempco, 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 | 5.000V output, 0.02% initial accuracy, 3ppm/°C max tempco, 950µA supply current, SO-8 package | Superior precision and noise (1.2µVRMS) but higher quiescent current and no reverse-battery protection | Selected for metrology-grade systems where power budget allows and absolute lowest noise is critical |
Compared with REF5050IDR and ADR4550BRZ, the LT1460EIS8-5#PBF offers unique value in battery-operated instruments via its 175µA supply current, capacitorless operation, and reverse-battery immunity - trading minor accuracy for robustness and efficiency.
Availability
LT1460EIS8-5#PBF is available at Aetrix Electronics and suitable for precision regulators, handheld instruments, and A/D converter reference applications requiring stable component supply across industrial temperature ranges.
Supply support for LT1460EIS8-5#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, formed through the acquisition of Linear Technology in 2017.
The LT1460EIS8-5#PBF belongs to ADI's legacy Linear Technology precision reference family, engineered for applications demanding micropower operation, high accuracy, and ruggedness in portable and industrial environments.
FAQ
What is the maximum input voltage rating for the LT1460EIS8-5#PBF?
The LT1460EIS8-5#PBF has an absolute maximum input voltage rating of 30V. Operation beyond this limit risks permanent damage. For reliable long-term use, input voltage should remain within VOUT + 0.9V to 20V per datasheet recommendations, ensuring optimal line regulation and thermal performance.
Does the LT1460EIS8-5#PBF require an output capacitor for stability?
No, the LT1460EIS8-5#PBF is designed to be stable without any output capacitor and remains stable with capacitive loads up to 1µF. This eliminates the need for external compensation components, reducing bill-of-materials cost and PCB area - a key advantage over many competing references that mandate minimum output capacitance.
What is the guaranteed temperature range for the LT1460EIS8-5#PBF?
The LT1460EIS8-5#PBF is specified for operation across the industrial temperature range of –40°C to +85°C. All electrical parameters - including initial accuracy (±0.125%), temperature coefficient (20ppm/°C max), and load regulation - are guaranteed over this full range, not just at 25°C.
How much output current can the LT1460EIS8-5#PBF source continuously?
The LT1460EIS8-5#PBF is rated to source up to 20mA of continuous output current while maintaining specified accuracy and regulation. Short-circuit current capability exceeds 40mA, but sustained operation above 20mA may degrade long-term stability and increase thermal drift due to die heating.
Is the LT1460EIS8-5#PBF protected against reverse battery connections?
Yes, the LT1460EIS8-5#PBF provides inherent reverse battery protection: it blocks conduction when input voltage falls below –15V, preventing damage during accidental reverse polarity connection. This feature is built into the internal topology and requires no external diodes or protection circuitry.
LT1460EIS8-5#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- 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#PBF FAQ
1.How can I place an order for LT1460EIS8-5#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1460EIS8-5#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 LT1460EIS8-5#PBF reliable?
The price and inventory of LT1460EIS8-5#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1460EIS8-5#PBF is usually 5 days.
3.What payment methods are accepted for LT1460EIS8-5#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1460EIS8-5#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1460EIS8-5#PBF?
LT1460EIS8-5#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1460EIS8-5#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 LT1460EIS8-5#PBF?
For technical support, including LT1460EIS8-5#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1460EIS8-5#PBF requirements.
6.How does Aetrix verify that LT1460EIS8-5#PBF is sourced from the original manufacturer or authorized distributors?
All LT1460EIS8-5#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 LT1460EIS8-5#PBF meets industry standards.
7.What is the process for return or replacement of LT1460EIS8-5#PBF?
All LT1460EIS8-5#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1460EIS8-5#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 LT1460EIS8-5#PBF part is unused and in its original packaging.
Return procedure for LT1460EIS8-5#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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