My Inquiry
My Account
Analog Devices Inc. LT1236BIS8-5#TRPBF
- Part No.:
- LT1236BIS8-5#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1236BIS8-5#TRPBF.pdf
- Description:
- IC VREF PRECISION 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,404
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT1236BIS8-5#TRPBF from Analog Devices (acquired Linear Technology) is a precision 5V series/shunt voltage reference IC featuring ultra-low 5ppm/°C max temperature coefficient, 0.05% max initial accuracy, and <3µVP-P (0.1Hz–10Hz) output noise. It sources/sinks ±10mA, operates from 6V to 40V input, and delivers stable 5V output for high-resolution ADC/DAC biasing in industrial instrumentation.
For engineers reviewing the LT1236BIS8-5#TRPBF datasheet, LT1236BIS8-5#TRPBF pinout, LT1236BIS8-5#TRPBF application, or LT1236BIS8-5#TRPBF equivalent, key selection criteria include long-term stability (20ppm/1000hrs), thermal hysteresis (10ppm), ripple rejection (>100dB), and compatibility with precision scale and inertial navigation signal chains.
Technical Context
The LT1236BIS8-5#TRPBF uses a subsurface buried zener diode structure-eliminating surface-breakdown noise and drift-to achieve superior stability over bandgap references. Its architecture supports both series-mode (3-terminal) and shunt-mode (2-terminal) operation without external components.
Thermal regulation effects are minimized via low-power design (1.2mA typical supply current) and internal stress compensation, enabling stable performance across –40°C to 85°C without on-chip heaters. The trim pin (Pin 5) allows fine adjustment of output voltage while maintaining TC integrity when driven from ≤3kΩ source impedance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.995V to 5.005V at 25°C - ensures ≤±10mV absolute error for 12-bit systems over full temp range |
| Temp Coefficient | 5ppm/°C max - contributes ≤0.8LSB error in 12-bit, 40°C span applications |
| Output Noise | <3µVP-P (0.1Hz–10Hz) - enables sub-16-bit resolution in low-frequency precision measurement |
| Line Regulation | 2–12ppm/V - maintains output stability despite ±3V input variation in unregulated supplies |
| Load Regulation | 10–35ppm/mA sourcing - holds accuracy under dynamic load shifts up to ±10mA |
| Long-Term Stability | 20ppm/1000hrs - guarantees minimal calibration drift in deployed test equipment |
| Ripple Rejection | >100dB at 150Hz - suppresses switching regulator noise in mixed-signal PCBs |
Pinout & Package
LT1236BIS8-5#TRPBF is housed in an 8-lead plastic SOIC (S8) package with 1.27mm pitch. Pins 1, 3, 4, and 6 are internally connected NC terminals; external circuitry must not be attached to them per datasheet guidance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (NC) | No Connect | Internally bonded; no external connection permitted - avoids parasitic coupling |
| Pin 2 (VIN) | Input Supply | Accepts 6V–40V DC; minimum VIN–VOUT differential = 1V for regulation |
| Pin 3 (NC) | No Connect | Internally bonded; no external connection permitted - avoids parasitic coupling |
| Pin 4 (GND) | Ground Reference | Carries only ~1mA quiescent current in series mode - suitable as Kelvin sense point |
| Pin 5 (TRIM) | Voltage Adjustment | 100kΩ input impedance; 13:1 attenuation to output - enables ±70mV trim with minimal TC shift |
| Pin 6 (NC) | No Connect | Internally bonded; no external connection permitted - avoids parasitic coupling |
| Pin 7 (VOUT) | Reference Output | Sources/sinks ±10mA; stable 5V output with <3µVP-P noise in 0.1–10Hz band |
| Pin 8 (NC) | No Connect | Internally bonded; no external connection permitted - avoids parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| Buried Zener Core | Eliminates surface breakdown noise and improves time stability vs. bandgap or surface zener references |
| Series/Shunt Dual Mode | Operates as 3-terminal series reference or 2-terminal shunt regulator - simplifies design reuse across topologies |
| Ultra-Low Thermal Hysteresis | 10ppm over ±25°C cycle - prevents measurement offset shifts in lab-grade instruments with intermittent use |
| High Ripple Rejection | >100dB at 150Hz - enables direct use after switch-mode power supplies without additional filtering |
| Kelvin Ground Sensing | GND pin carries only ~1mA - permits low-impedance ground return path for 16-bit+ data acquisition systems |
Applications
| High-Resolution Data Acquisition | Precision Industrial Scales |
|---|---|
Use Scenario: 24-bit sigma-delta ADC front-end in portable environmental sensor node requiring <1ppm total error over –25°C to 70°C. IC Role / Device Role / Timing Role: Primary 5V reference for ADC VREF and DAC feedback loop - sets full-scale accuracy and noise floor. Use Value: 5ppm/°C TC and 20ppm/1000hrs long-term stability ensure calibration validity for 2+ years without field recalibration. | Use Scenario: Load-cell signal conditioning in Class III legal-for-trade weighing platform with 100,000 division resolution. IC Role / Device Role / Timing Role: Excitation and reference source for Wheatstone bridge amplifier - defines weight measurement linearity and repeatability. Use Value: <3µVP-P low-frequency noise directly translates to <0.001% RMS noise floor, meeting OIML R76 requirements. |
| Inertial Navigation Systems | Digital Voltmeters |
Use Scenario: Biasing gyroscope and accelerometer analog front-ends in aerospace-grade IMU where thermal cycling induces hysteresis errors. IC Role / Device Role / Timing Role: Stable 5V reference for precision op-amp gain-setting networks and ADC sampling clocks. Use Value: 10ppm thermal hysteresis ensures repeatable zero-bias after storage at –40°C or +85°C - critical for alignment integrity. | Use Scenario: 7½-digit bench DVM requiring 0.1ppm resolution and <0.5ppm/°C system drift over 2-hour warm-up period. IC Role / Device Role / Timing Role: Master reference for dual-slope integrator and auto-zero amplifier - determines absolute measurement accuracy. Use Value: Buried zener construction provides 0.05% initial accuracy and negligible warm-up drift (<0.005%), enabling true 7½-digit confidence. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1027CS8-5#TRPBF | Lower 2ppm/°C TC but higher 0.02% initial error; requires 8V min input; no shunt mode | Better TC for narrow-temp lab gear; unsuitable for battery-powered shunt-regulator designs | Select LT1027CS8-5#TRPBF only when TC dominates error budget and input >8V is guaranteed |
| ADR445ARMZ-REEL7 | 5ppm/°C TC, 0.04% initial accuracy, 1.2mA supply current; pinout incompatible (SO-8, different pin mapping) | Higher PSRR (120dB), better noise spec (1.5µVP-P); requires redesign of PCB layout and decoupling | Choose ADR445ARMZ-REEL7 if noise-critical medical imaging or seismic sensing demands sub-2µVP-P performance |
Compared with LT1027CS8-5#TRPBF and ADR445ARMZ-REEL7, LT1236BIS8-5#TRPBF uniquely supports dual-series/shunt operation with Kelvin ground sensing - making it optimal for cost-sensitive industrial field instruments needing field-replaceable calibration and wide-input flexibility.
Availability
LT1236BIS8-5#TRPBF is available at Aetrix Electronics and suitable for high-resolution data acquisition, precision industrial scales, inertial navigation systems, and digital voltmeters requiring stable component supply with traceable lot history and extended lifecycle support.
Supply support for LT1236BIS8-5#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LT1236 family was designed by Linear Technology (now ADI) specifically for metrology-grade applications demanding ultra-stable voltage references with buried-zener performance - targeting 16-bit+ data converters and laboratory instrumentation.
FAQ
What is the maximum load current LT1236BIS8-5#TRPBF can source or sink?
LT1236BIS8-5#TRPBF can source or sink up to ±10mA continuously while maintaining specified accuracy and temperature coefficient. At 10mA sourcing, load regulation is 10–35ppm/mA; sinking capability is verified down to –10mA with 60–150ppm/mA regulation. Exceeding ±10mA risks exceeding thermal limits and degrading long-term stability.
Can LT1236BIS8-5#TRPBF operate in shunt mode like a two-terminal zener?
Yes, LT1236BIS8-5#TRPBF supports true two-terminal shunt operation: connect VIN to VOUT and apply current through GND. In this configuration, it regulates at 5V with same precision specs as series mode. Minimum shunt current is 1.1mA (open VIN), and output-to-ground voltage is rated to 10V - enabling use in legacy zener-replacement circuits.
What is the purpose of the TRIM pin (Pin 5) on LT1236BIS8-5#TRPBF?
The TRIM pin (Pin 5) on LT1236BIS8-5#TRPBF allows fine adjustment of output voltage with 13:1 attenuation to VOUT, enabling ±70mV trim range. Its 100kΩ input impedance requires driving from ≤3kΩ source to avoid TC degradation. For LT1236BIS8-5#TRPBF, trimming is typically used to null system-level offsets in precision DAC/ADC calibrations.
How does LT1236BIS8-5#TRPBF achieve ultra-low noise below 10Hz?
LT1236BIS8-5#TRPBF achieves <3µVP-P (0.1Hz–10Hz) noise via its subsurface buried zener diode structure - eliminating surface-state noise mechanisms inherent in bandgap or surface-zener references. This design also minimizes thermoelectric noise by reducing thermal gradients across leads, provided air turbulence is shielded per datasheet layout guidelines.
Is LT1236BIS8-5#TRPBF compatible with AD586 or AD587 footprints?
Yes, LT1236BIS8-5#TRPBF is explicitly pin-compatible with AD586 and AD587 in the SO-8 package. Pin assignments (VIN, GND, VOUT, TRIM) match identically, allowing drop-in replacement in existing designs. However, note that LT1236BIS8-5#TRPBF offers lower TC (5ppm/°C vs. AD586's 10ppm/°C) and superior long-term stability (20ppm/1000hrs vs. AD586's 50ppm).
LT1236BIS8-5#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, Buried Zener
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 3µVp-p
- Noise - 10Hz to 10kHz:
- 2.2µVrms
- Voltage - Input:
- 7.2V ~ 40V
- Current - Supply:
- 1.5mA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT1236BIS8-5#TRPBF FAQ
1.How can I place an order for LT1236BIS8-5#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1236BIS8-5#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 LT1236BIS8-5#TRPBF reliable?
The price and inventory of LT1236BIS8-5#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1236BIS8-5#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1236BIS8-5#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1236BIS8-5#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1236BIS8-5#TRPBF?
LT1236BIS8-5#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1236BIS8-5#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 LT1236BIS8-5#TRPBF?
For technical support, including LT1236BIS8-5#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1236BIS8-5#TRPBF requirements.
6.How does Aetrix verify that LT1236BIS8-5#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1236BIS8-5#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 LT1236BIS8-5#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1236BIS8-5#TRPBF?
All LT1236BIS8-5#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1236BIS8-5#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 LT1236BIS8-5#TRPBF part is unused and in its original packaging.
Return procedure for LT1236BIS8-5#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1236BIS8-5#TRPBF Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
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…
