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Analog Devices Inc. LTC6652AHMS8-3.3#TRPBF
- Part No.:
- LTC6652AHMS8-3.3#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6652AHMS8-3.3#TRPBF.pdf
- Description:
- IC VREF SERIES 0.05% 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,568
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Product details
Overview
LTC6652AHMS8-3.3#TRPBF from Analog Devices (formerly Linear Technology) is a precision buffered voltage reference IC delivering a stable 3.3V output with ±0.05% initial accuracy, <5ppm/°C temperature drift (A-grade), and 2.2ppmP-P low-frequency noise (0.1Hz–10Hz). It operates from 3.6V to 13.2V supply, sinks/sources ±5mA, and features shutdown mode (<2µA). It is used in high-resolution ADC/DAC biasing, automotive sensor signal conditioning, and industrial data acquisition where long-term stability and thermal robustness are critical.
For engineers reviewing the LTC6652AHMS8-3.3#TRPBF datasheet, LTC6652AHMS8-3.3#TRPBF pinout, LTC6652AHMS8-3.3#TRPBF application, or LTC6652AHMS8-3.3#TRPBF equivalent, this page provides verified specifications, package details, real-world application contexts, and validated alternative options for design-in and supply chain continuity.
Technical Context
The LTC6652AHMS8-3.3#TRPBF employs high-order curvature-compensated bandgap architecture to achieve predictable, monotonic temperature behavior across –40°C to 125°C. Its buffered output delivers low output impedance (<1Ω at DC) and exceptional line regulation (≤50ppm/V) without requiring external capacitors.
It integrates an active-low shutdown input (SHDN) that disables internal circuitry while maintaining high-impedance output (≈20kΩ × VOUT). The MSOP-8 package supports full automotive-grade operation and exhibits 60ppm/√kHr long-term drift and 80ppm thermal hysteresis over –40°C to 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.300V ±0.05% (±1.65mV) - enables direct interface with 3.3V SAR ADCs and precision DACs without gain calibration. |
| Tempco (A-grade) | ≤5ppm/°C - ensures ≤650ppm (0.065%) total drift over –40°C to 125°C, critical for uncalibrated high-temp systems. |
| Low-Frequency Noise | 2.2ppmP-P (0.1Hz–10Hz) - contributes <1.5µVP-P error in 18-bit ADC references, preserving ENOB. |
| Load Regulation | ≤75ppm/mA (sourcing), ≤450ppm/mA (sinking) - maintains stability under dynamic load changes in multiplexed sensor front-ends. |
| Shutdown Current | <2µA - reduces system standby power in battery-backed instrumentation and portable test equipment. |
| Min. Input Voltage | VOUT + 0.3V = 3.6V - allows operation from standard 3.6V Li-ion or regulated 3.8V rails without dropout penalty. |
| Supply Range | 3.6V to 13.2V - supports wide-input industrial power supplies and automotive battery monitoring circuits. |
Pinout & Package
Package: 8-lead plastic MSOP (MS8), 3mm × 3mm × 0.85mm, surface-mount, RoHS-compliant, rated for –40°C to 125°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DNC (Pin 1) | Do Not Connect | Unused internal node; must remain floating - no PCB trace or solder connection permitted. |
| VIN (Pin 2) | Power Supply Input | Accepts 3.6V–13.2V; bypass with 0.1µF ceramic capacitor to GND improves PSRR by >40dB at 1kHz. |
| SHDN (Pin 3) | Active-Low Shutdown Control | Logic low (<0.1V) disables reference; logic high (≥2.0V) enables - compatible with 3.3V GPIO without level shift. |
| GND (Pin 4) | Device Ground Reference | Main ground return path; all other GND pins (5,7,8) must be tied directly to this node on PCB. |
| GND (Pins 5,7,8) | Internal Ground Terminals | Low-impedance ground connections for die substrate and output buffer - require solid copper pour tie to Pin 4. |
| VOUT (Pin 6) | Precision Output Voltage | 3.3V buffered source/sink node; stable without output capacitor; optional 0.1µF–10µF improves transient response. |
Key Features
| Feature | Design Value |
|---|---|
| High-Accuracy A-Grade Trim | ±0.05% initial error - eliminates need for post-solder calibration in production test of medical and metrology instruments. |
| Hermetic Stability Equivalent | 60ppm/√kHr long-term drift (MSOP) - matches performance of ceramic-packaged references in cost-sensitive automotive modules. |
| Full-Temp Guaranteed Sourcing/Sinking | ±5mA drive capability from –40°C to 125°C - enables direct driving of ADC reference inputs and op-amp bias networks. |
| Low Dropout Operation | 300mV headroom - permits use with low-headroom LDOs or battery-supplied systems where VIN ≈ 3.6V. |
| Robust Shutdown Behavior | Output impedance ≈66kΩ in shutdown (20kΩ × 3.3V) - prevents loading of downstream circuits while enabling fast wake-up. |
Applications
| Automotive Battery Monitoring | Industrial 18-Bit Data Acquisition |
|---|---|
|
Use Scenario: Measuring 12V battery voltage and cell stack voltages in EV BMS under engine cranking (6V–16V transients) and extreme ambient temperatures. IC Role / Device Role / Timing Role: Precision 3.3V reference for isolated sigma-delta ADCs digitizing shunt-based current and voltage measurements. Use Value: 5ppm/°C drift ensures ≤0.008% measurement error over full vehicle operating range, meeting ASIL-B functional safety requirements. |
Use Scenario: High-channel-count PLC analog input module acquiring thermocouple, RTD, and strain gauge signals with 100+ dB SNR. IC Role / Device Role / Timing Role: Primary reference for dual-slope and SAR ADCs, providing stable bias for programmable gain instrumentation amplifiers. Use Value: 2.2ppmP-P low-frequency noise minimizes quantization uncertainty, preserving effective resolution beyond 18 bits. |
| Medical Patient Monitor Front-End | Aerospace Sensor Signal Conditioning |
|
Use Scenario: ECG/EEG analog front-end requiring ultra-low-noise, drift-free bias for differential amplifiers and anti-alias filters. IC Role / Device Role / Timing Role: Low-noise 3.3V reference for ADCs sampling biopotential signals at 1–10 kSPS with DC-coupled paths. Use Value: 60ppm/√kHr long-term drift ensures calibration validity for ≥12 months between service intervals in Class II medical devices. |
Use Scenario: Gyro and accelerometer signal conditioning in UAV flight controllers exposed to –40°C cold soak and 125°C engine bay heat. IC Role / Device Role / Timing Role: Stable reference for ratiometric sensor excitation and ADC conversion in radiation-tolerant hybrid assemblies. Use Value: Full –40°C to 125°C specification compliance eliminates derating, reducing qualification testing scope and time-to-certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4533BRZ-R7 | 3.3V, ±0.02% initial accuracy, 3ppm/°C max, 1.75ppmP-P noise, SOIC-8 package, 125°C max rating | Lower noise and tighter initial tolerance but higher cost and larger SOIC footprint; no shutdown pin | Select when ultimate noise performance and calibration margin outweigh board space and power control needs. |
| REF5033IDR | 3.3V, ±0.05% initial accuracy, 3ppm/°C max, 2.9ppmP-P noise, SOIC-8, –40°C to 125°C, no shutdown | Similar accuracy and tempco, but higher noise and no power-down capability; requires external enable circuitry | Choose for legacy designs already using REF50xx family or where shutdown functionality is not required. |
Compared with ADR4533BRZ-R7 and REF5033IDR, the LTC6652AHMS8-3.3#TRPBF offers integrated shutdown, MSOP-8 compactness, and guaranteed ±5mA drive across temperature - making it optimal for space-constrained, low-power, and dynamically loaded precision systems.
Availability
LTC6652AHMS8-3.3#TRPBF is available at Aetrix Electronics and suitable for automotive battery monitoring, industrial 18-bit data acquisition, and medical patient monitor front-end designs requiring stable component supply with full temperature-grade assurance and long-term parametric continuity.
Supply support for LTC6652AHMS8-3.3#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.
The LTC6652 family was designed specifically for high-accuracy, high-stability voltage referencing in automotive, industrial, and medical systems operating across extended temperature ranges without recalibration.
FAQ
What is the maximum supply voltage for the LTC6652AHMS8-3.3#TRPBF?
The LTC6652AHMS8-3.3#TRPBF supports a maximum input voltage of 13.2V, as specified in its Absolute Maximum Ratings. Operation above this voltage risks permanent damage. For reliable long-term performance, VIN should be maintained between 3.6V (VOUT + 0.3V) and 13.2V, with 0.1µF local bypassing recommended at VIN to GND.
Does the LTC6652AHMS8-3.3#TRPBF require an output capacitor?
No, the LTC6652AHMS8-3.3#TRPBF is stable without an output capacitor and can operate with COUT = 0. However, adding 0.1µF–10µF improves transient response under dynamic load steps - especially for sourcing currents >1mA. The device's output impedance remains low (<1Ω) regardless, and stability is guaranteed across the full capacitance range.
How does shutdown mode affect the output of the LTC6652AHMS8-3.3#TRPBF?
In shutdown mode (SHDN ≤ 0.1V), the LTC6652AHMS8-3.3#TRPBF disables its internal reference core and presents a high-impedance output ≈20kΩ × 3.3V = 66kΩ. This prevents loading downstream circuits while consuming <2µA. Upon wake-up, turn-on time to 0.1% settling is 100µs with no load and no output capacitor.
Is the LTC6652AHMS8-3.3#TRPBF suitable for automotive applications?
Yes - the LTC6652AHMS8-3.3#TRPBF is fully specified from –40°C to 125°C, meets AEC-Q200 stress test recommendations (per Analog Devices' qualification report), and is widely deployed in automotive battery monitors, ADAS sensor interfaces, and engine control modules requiring precision ratiometric measurement.
What is the long-term drift specification for the LTC6652AHMS8-3.3#TRPBF?
The LTC6652AHMS8-3.3#TRPBF exhibits 60ppm/√kHr long-term drift in the MSOP-8 package, measured over >1000 hours on soldered PC boards at 35°C ambient. This value reflects real-world aging behavior - not accelerated test extrapolation - and supports calibration intervals up to 12 months in medical and industrial instrumentation.
LTC6652AHMS8-3.3#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 5ppm/°C
- Noise - 0.1Hz to 10Hz:
- 2.2ppmp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 3.6V ~ 13.2V
- Current - Supply:
- 560µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC6652AHMS8-3.3#TRPBF FAQ
1.How can I place an order for LTC6652AHMS8-3.3#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6652AHMS8-3.3#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 LTC6652AHMS8-3.3#TRPBF reliable?
The price and inventory of LTC6652AHMS8-3.3#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6652AHMS8-3.3#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6652AHMS8-3.3#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6652AHMS8-3.3#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6652AHMS8-3.3#TRPBF?
LTC6652AHMS8-3.3#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6652AHMS8-3.3#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 LTC6652AHMS8-3.3#TRPBF?
For technical support, including LTC6652AHMS8-3.3#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6652AHMS8-3.3#TRPBF requirements.
6.How does Aetrix verify that LTC6652AHMS8-3.3#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6652AHMS8-3.3#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 LTC6652AHMS8-3.3#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6652AHMS8-3.3#TRPBF?
All LTC6652AHMS8-3.3#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6652AHMS8-3.3#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 LTC6652AHMS8-3.3#TRPBF part is unused and in its original packaging.
Return procedure for LTC6652AHMS8-3.3#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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