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Analog Devices Inc. LT1236CCS8-5#TRPBF
- Part No.:
- LT1236CCS8-5#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1236CCS8-5#TRPBF.pdf
- Description:
- IC VREF PRECISION 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,697
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Product details
Overview
LT1236CCS8-5#TRPBF from Analog Devices (formerly Linear Technology) is a precision 5V voltage reference IC based on a buried zener diode structure, delivering ultra-low temperature drift (10–15 ppm/°C max), high initial accuracy (±0.05%), and sub-1ppmP-P low-frequency noise (0.1Hz–10Hz). It operates in both series and shunt modes, sources/sinks up to 10mA, and is rated for industrial temperature range (0°C to 70°C) in an 8-lead SOIC package - ideal for high-resolution data acquisition systems requiring stable excitation or calibration references.
For engineers reviewing the LT1236CCS8-5#TRPBF datasheet, LT1236CCS8-5#TRPBF pinout, LT1236CCS8-5#TRPBF application, or LT1236CCS8-5#TRPBF equivalent, key selection criteria include output temperature coefficient, long-term stability (20 ppm over 1000 hours), load regulation (≤100 ppm/mA), ripple rejection (>100 dB), and compatibility with precision ADC/DAC biasing, inertial navigation references, and digital voltmeter front-ends.
Technical Context
The LT1236CCS8-5#TRPBF uses a subsurface zener architecture that eliminates surface-breakdown noise and improves thermal hysteresis performance versus bandgap references. Its two-terminal shunt mode operation enables use as a precision zener replacement, while three-terminal series mode supports active sourcing/sinking with minimal input-output differential (≥1V).
Thermal regulation effects are minimized via internal design optimizations - no on-chip heater is used - and the device exhibits <5 ppm hysteresis over ±25°C cycling. Output voltage trimming is not supported on the -5V variant, distinguishing it from the LT1236-10 family which includes a dedicated TRIM pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.995 V to 5.005 V at 25°C - ensures ≤0.1% absolute error across grade C, enabling direct use in 12-bit+ systems without post-calibration. |
| Temp Coefficient | 10–15 ppm/°C max (0°C to 70°C) - contributes ≤0.5 LSB error in 12-bit systems over 40°C span, meeting stringent metrology requirements. |
| Noise (0.1–10 Hz) | 3.0 µVP-P (≈0.6 ppm of 5V) - enables high-fidelity DC measurements in strain gauge, precision scale, and sensor signal conditioning. |
| Load Regulation | ≤100 ppm/mA (sourcing), ≤150 ppm/mA (sinking) - maintains stability under dynamic load shifts typical in multiplexed ADC reference rails. |
| Ripple Rejection | >100 dB at 150 Hz - suppresses switching regulator noise in mixed-signal PCBs without external filtering. |
| Long-Term Stability | 20 ppm over 1000 hours - reduces recalibration frequency in field-deployed instrumentation and test equipment. |
| Supply Current | 0.8–1.5 mA - allows low-power operation in battery-backed or energy-constrained embedded measurement nodes. |
Pinout & Package
LT1236CCS8-5#TRPBF is housed in an 8-lead plastic SOIC (S8) package with gull-wing leads, 1.27 mm pitch, and JEDEC MS-012AC compliance. Pins 1, 3, 4, 6, and 7 are internally connected and must remain unconnected externally per datasheet guidance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 2 (VIN) | Input supply terminal | Accepts 6–40 V input; requires ≥1 V headroom above 5 V output for regulation in series mode. |
| Pin 5 (GND) | Reference ground | Carries only ~1 mA quiescent current; suitable as Kelvin sense point to minimize ground-loop errors. |
| Pin 8 (VOUT) | Regulated output | Delivers precise 5 V; capable of sourcing/sinking up to 10 mA with minimal load regulation error. |
| Pin 1, 3, 4, 6, 7 (NC) | No-connect terminals | Internally bonded but electrically isolated - must be left floating; connecting risks parametric shift or damage. |
Key Features
| Feature | Design Value |
|---|---|
| Buried zener core | Eliminates surface breakdown noise and drift instability - delivers superior time/temperature stability vs. bandgap or surface-zener references. |
| Series/shunt dual-mode operation | Enables flexible system integration: series mode for active regulation, shunt mode for simple 2-terminal replacement of legacy zeners. |
| High PSRR & low thermal hysteresis | 100+ dB ripple rejection + ≤10 ppm hysteresis - preserves accuracy in thermally cycled or noisy power environments. |
| Industrial temperature rating | 0°C to 70°C operation (CC grade) - qualified for factory automation, PLC I/O modules, and industrial test gear without derating. |
| 100% noise tested | Guaranteed sub-3 µVP-P (0.1–10 Hz) - ensures consistent low-noise performance across production lots for metrology-critical designs. |
Applications
| High-Resolution Data Acquisition | Precision Regulator Reference |
|---|---|
|
Use Scenario: 16-bit SAR ADC front-end in automated test equipment requiring <0.5 LSB total error over temperature. IC Role / Device Role / Timing Role: Primary voltage reference for ADC VREF input and DAC full-scale calibration. Use Value: 10 ppm/°C drift and 3 µVP-P noise prevent quantization error inflation, maintaining ENOB >15.2 bits across 0–70°C. |
Use Scenario: Feedback reference for low-drift linear regulator powering analog sensor signal chains. IC Role / Device Role / Timing Role: Stable setpoint source for error amplifier in ultra-low-noise LDO control loop. Use Value: >100 dB ripple rejection isolates regulator output from upstream switcher noise, reducing output ripple by >10×. |
| Digital Voltmeter Core | Inertial Navigation Bias Reference |
|
Use Scenario: 7½-digit DVM requiring <10 ppm/year long-term stability and sub-ppm noise floor. IC Role / Device Role / Timing Role: Master reference for auto-zeroed integrator and ratiometric scaling circuits. Use Value: 20 ppm/1000h stability and <5 ppm hysteresis enable annual calibration intervals without drift-induced offset drift. |
Use Scenario: Bias reference for gyroscope/accelerometer front-end amplifiers in aerospace-grade IMUs. IC Role / Device Role / Timing Role: Low-noise, low-drift excitation source for Wheatstone bridge sensors and demodulation circuitry. Use Value: Buried zener construction ensures immunity to radiation-induced parameter shift and thermal cycling fatigue. |
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 tempco (2 ppm/°C max), tighter initial accuracy (±0.02%), higher cost; no shunt-mode capability. | Suitable where ultra-stable lab-grade calibration is required, but incompatible with 2-terminal zener replacement use cases. | Select when drift budget is <2 ppm/°C and shunt operation is unnecessary; avoid if board must support dual-mode topology. |
| ADR445BRZ-REEL7 | Bandgap-based, 3 ppm/°C max, 0.04% initial accuracy, 1.8 µVRMS (0.1–10 Hz); requires ≥2.5 V headroom. | Better for low-voltage systems (e.g., 3.3 V rails); lacks shunt-mode operation and buried-zener noise immunity. | Prefer for space-constrained, low-headroom designs where long-term stability >20 ppm/1000h is acceptable. |
Compared with LT1236CCS8-5#TRPBF, LT1027CS8-5#TRPBF offers lower drift but sacrifices shunt flexibility, while ADR445BRZ-REEL7 trades buried-zener noise performance for smaller headroom and lower cost - making LT1236CCS8-5#TRPBF optimal for dual-mode, low-noise industrial instrumentation.
Availability
LT1236CCS8-5#TRPBF is available at Aetrix Electronics and suitable for high-resolution data acquisition, precision regulator feedback, and digital voltmeter applications requiring stable component supply across extended production lifecycles.
Supply support for LT1236CCS8-5#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial, and aerospace markets.
The LT1236 family was designed specifically for metrology-grade voltage references - emphasizing buried-zener stability, ultra-low noise, and dual-mode (series/shunt) operability to replace aging discrete zener solutions in mission-critical measurement systems.
FAQ
What is the maximum load current LT1236CCS8-5#TRPBF can source or sink?
LT1236CCS8-5#TRPBF can source or sink up to 10 mA while maintaining specified load regulation (≤100 ppm/mA for sourcing). Exceeding this current may degrade output accuracy and increase thermal drift. The device remains functional beyond 10 mA but requires external buffering for higher loads, as shown in typical application TA05 and TA06 using a PNP boost transistor.
Does LT1236CCS8-5#TRPBF support output voltage trimming?
No, LT1236CCS8-5#TRPBF does not have a functional trim pin. Unlike the LT1236-10 variants, the -5V version lacks a dedicated TRIM terminal (Pin 5 is GND, not trim). Trimming must be implemented externally using resistor networks or op-amp summing configurations - but doing so risks degrading temperature coefficient and long-term stability.
Can LT1236CCS8-5#TRPBF operate in shunt mode like a two-terminal zener diode?
Yes, LT1236CCS8-5#TRPBF supports shunt-mode operation: connect VIN to VOUT and apply load between VOUT and GND. In this configuration, it regulates with the same precision as in series mode, though minimum shunt current is not specified for the -5V version - unlike the -10V variant which specifies 1.1–1.7 mA minimum.
What is the recommended input voltage range for LT1236CCS8-5#TRPBF?
The recommended input voltage range for LT1236CCS8-5#TRPBF is 6 V to 40 V. A minimum 1 V differential (VIN – VOUT) is required for regulation; operating below 6 V risks dropout and loss of regulation. For optimal line regulation, maintain VIN between 7.2 V and 10 V (4–12 ppm/V) or 10 V to 40 V (2–6 ppm/V).
Is LT1236CCS8-5#TRPBF pin-compatible with AD586 or AD587?
Yes, LT1236CCS8-5#TRPBF is explicitly stated as pin-compatible with AD586 and AD587 in the datasheet Features section. All share the same 8-pin SOIC footprint and identical pin functions (VIN, GND, VOUT, NC), enabling drop-in replacement in legacy designs - provided thermal and layout constraints (e.g., Kelvin grounding, airflow shielding) are preserved to maintain low-noise performance.
LT1236CCS8-5#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:
- 15ppm/°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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT1236CCS8-5#TRPBF FAQ
1.How can I place an order for LT1236CCS8-5#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1236CCS8-5#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 LT1236CCS8-5#TRPBF reliable?
The price and inventory of LT1236CCS8-5#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1236CCS8-5#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1236CCS8-5#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1236CCS8-5#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1236CCS8-5#TRPBF?
LT1236CCS8-5#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1236CCS8-5#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 LT1236CCS8-5#TRPBF?
For technical support, including LT1236CCS8-5#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1236CCS8-5#TRPBF requirements.
6.How does Aetrix verify that LT1236CCS8-5#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1236CCS8-5#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 LT1236CCS8-5#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1236CCS8-5#TRPBF?
All LT1236CCS8-5#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1236CCS8-5#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 LT1236CCS8-5#TRPBF part is unused and in its original packaging.
Return procedure for LT1236CCS8-5#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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