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Analog Devices Inc. REF192FS-REEL
- Part No.:
- REF192FS-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
REF192FS-REEL.pdf
- Description:
- IC VREF SERIES 0.2% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,841
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Product details
Overview
REF192FS-REEL from Analog Devices is a precision micropower low-dropout (LDV) voltage reference IC delivering a stable 2.50 V output with ±2 mV initial accuracy, 5 ppm/°C max temperature coefficient, and 45 μA max supply current - used in high-resolution ADC/DAC biasing, portable instrumentation, and solar-powered sensor nodes.
For engineers reviewing the REF192FS-REEL datasheet, REF192FS-REEL pinout, REF192FS-REEL application, or REF192FS-REEL equivalent, key selection criteria include dropout voltage at 10 mA load (1.00 V), sleep-mode current (≤15 μA), load regulation (4 ppm/mA), and SOIC_N package compatibility for space-constrained industrial designs.
Technical Context
The REF192FS-REEL employs a patented curvature-corrected band gap core with laser-trimmed thin-film resistors to achieve ultra-low drift and high initial accuracy. Its internal sleep control circuit disables output and reduces quiescent current to ≤15 μA when the SLEEP pin is driven low.
It operates across −40°C to +85°C with guaranteed performance up to +125°C, supports 30 mA output current, and requires only a 1 μF output bypass capacitor for stability. Dropout voltage remains ≤1.50 V at 25 mA load over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Output Voltage | 2.50 V - precisely trimmed for 12-bit to 16-bit data converter reference rails |
| Initial Accuracy | ±2 mV maximum at 25°C - enables single-point calibration in portable instruments |
| Temp. Coefficient | 5 ppm/°C max (−40°C to +85°C) - ensures <±0.3 mV drift over industrial temperature range |
| Supply Current | 45 μA max - supports multi-year battery life in solar- or loop-powered sensors |
| Sleep Mode Current | 15 μA max - allows dynamic power gating in duty-cycled measurement systems |
| Dropout Voltage | 1.00 V at 10 mA load - enables operation from 3.5 V supplies with margin for aging and ripple |
| Load Regulation | 4 ppm/mA - contributes <±0.1 mV error across full 30 mA output range |
Pinout & Package
REF192FS-REEL is housed in an 8-lead SOIC_N (SOIC-8 narrow-body) package, pin-compatible with industry-standard SOIC-8 footprints and compatible with automated assembly processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (TP) | Factory Test Point | Zener-zap trim point - must remain unconnected in end application |
| 2 (VS) | Positive Supply Input | Accepts 3.5 V to 15 V input; dropout as low as 1.00 V at 10 mA |
| 3 (SLEEP) | Digital Sleep Control Input | TTL/CMOS-compatible; low = output disabled, current ≤15 μA |
| 4 (GND) | Analog Ground Reference | Return path for output and supply; requires low-impedance connection to system ground |
| 5 (TP) | Factory Test Point | Zener-zap trim point - must remain unconnected in end application |
| 6 (NC) | No Connect | Internally unused - leave floating per datasheet |
| 7 (NC) | No Connect | Internally unused - leave floating per datasheet |
| 8 (OUTPUT) | Precision Voltage Output | 2.50 V regulated output; requires 1 μF ceramic bypass to GND for stability |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-Corrected Band Gap Core | Enables 5 ppm/°C tempco without external compensation components |
| Laser-Trimmed Thin-Film Resistors | Guarantees ±2 mV initial accuracy without post-assembly calibration |
| Low-Dropout Operation (LDV) | Delivers full 2.50 V output with only 1.00 V headroom at 10 mA load |
| Integrated Sleep Mode Control | Reduces supply current from 45 μA to ≤15 μA via logic-level pin assertion |
| Short-Circuit Protected Output | Withstands indefinite output short to GND without damage or parameter shift |
Applications
| Portable Instrumentation | High-Resolution Data Acquisition |
|---|---|
|
Use Scenario: Handheld multimeters and battery-operated environmental loggers requiring stable reference over wide temperature and supply ranges. IC Role / Device Role / Timing Role: Primary voltage reference for 16-bit SAR ADCs and precision DACs in measurement front-ends. Use Value: 5 ppm/°C tempco and 45 μA supply current enable >10-year battery life with <±0.5 LSB error across −20°C to +60°C operating range. |
Use Scenario: Industrial PLC analog input modules digitizing 4–20 mA sensor signals with 14+ ENOB. IC Role / Device Role / Timing Role: Reference source for sigma-delta ADCs and programmable gain instrumentation amplifiers. Use Value: 4 ppm/mA load regulation and 2.50 V ±2 mV accuracy minimize gain error and offset drift during channel scanning. |
| Solar-Powered Sensor Nodes | Loop-Powered Transmitters |
|
Use Scenario: Wireless soil moisture and air quality sensors powered by small photovoltaic cells with highly variable output voltage. IC Role / Device Role / Timing Role: Low-quiescent reference enabling operation down to 3.5 V supply with minimal dropout penalty. Use Value: 1.00 V dropout at 10 mA and 15 μA sleep current allow reliable startup and deep-sleep wake-up from micro-power energy harvesters. |
Use Scenario: 4–20 mA field transmitters where all circuitry must operate from loop current alone (typically 3.5–36 V). IC Role / Device Role / Timing Role: Precision reference for current-loop DACs and sensor signal conditioning stages. Use Value: 30 mA output drive capability and short-circuit protection ensure robustness against wiring faults and transient overloads in harsh environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3425ARJZ-R7 | 2.5 V output, 3 ppm/°C max tempco, 12 μA typical supply current, no sleep mode | Lower drift but lacks digital shutdown; better for always-on metrology, worse for duty-cycled systems | Select ADR3425ARJZ-R7 when ultra-low drift dominates over dynamic power control |
| MAX6126AASA25+ | 2.5 V output, 3 ppm/°C max tempco, 1.2 mA supply current, no sleep mode, higher drive (10 mA) | Higher power, higher drive; suited for noisy industrial buses but incompatible with micropower sleep architectures | Select MAX6126AASA25+ only when driving heavy capacitive loads or legacy op-amp buffers requiring >10 mA |
Compared with REF192FS-REEL, ADR3425ARJZ-R7 offers lower temperature drift but forfeits sleep-mode power savings, while MAX6126AASA25+ provides stronger output drive at 100× higher quiescent current - making REF192FS-REEL uniquely balanced for battery- and energy-harvesting applications demanding both precision and micropower agility.
Availability
REF192FS-REEL is available at Aetrix Electronics and suitable for portable instrumentation, high-resolution data acquisition, and solar-powered sensor nodes requiring stable component supply with long-term parametric consistency and RoHS-compliant packaging.
Supply support for REF192FS-REEL 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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design and manufacturing operations worldwide.
The REF19x series was developed specifically for micropower, low-dropout precision reference applications in portable, solar-powered, and loop-current systems - emphasizing ultra-low quiescent current, tight initial accuracy, and extended temperature reliability.
FAQ
What is the nominal output voltage of the REF192FS-REEL?
The REF192FS-REEL delivers a precisely trimmed nominal output voltage of 2.50 V, verified across production lots and specified with ±2 mV initial accuracy at 25°C. This value is laser-trimmed using factory test pins (Pins 1 and 5), and remains stable over −40°C to +85°C with a maximum temperature coefficient of 5 ppm/°C. The 2.50 V output is optimized for use with 12-bit to 16-bit analog-to-digital converters and precision DACs.
Does the REF192FS-REEL support sleep mode, and how is it activated?
Yes, the REF192FS-REEL supports active sleep mode via its dedicated SLEEP pin (Pin 3). Driving this pin to a logic low level (≤0.8 V) disables the output and reduces supply current to ≤15 μA - a critical feature for battery- and energy-harvesting systems. The pin accepts standard TTL or CMOS logic levels, with leakage current limited to −8 μA in both high and low states. The REF192FS-REEL resumes normal operation within microseconds after the SLEEP pin returns high.
What package type is used for the REF192FS-REEL, and are there any special layout requirements?
The REF192FS-REEL is supplied in an 8-lead SOIC_N (narrow-body SOIC-8) package, designated by the "S" suffix in the ordering code. Layout requires strict adherence to the 1 μF ceramic capacitor placed directly between OUTPUT (Pin 8) and GND (Pin 4), with short, low-inductance traces. Pins 1 and 5 are factory test points and must remain unconnected; Pins 6 and 7 are no-connect and should be left floating. Thermal pad is not present - standard SOIC thermal relief applies.
What is the minimum supply voltage required for the REF192FS-REEL to maintain regulation at 10 mA load?
The REF192FS-REEL maintains regulation at 10 mA load with a minimum supply voltage of 3.5 V - corresponding to a dropout voltage of 1.00 V (3.5 V − 2.50 V). This specification is guaranteed over −40°C to +85°C. At higher loads (e.g., 25 mA), dropout increases to 1.50 V, requiring ≥4.0 V supply. The low-dropout architecture enables operation from marginal or aged batteries and low-headroom power rails common in portable and loop-powered systems.
Is the REF192FS-REEL suitable for automotive applications, and what temperature range is guaranteed?
The REF192FS-REEL is specified over the extended industrial temperature range of −40°C to +85°C, with typical performance validated up to +125°C - making it suitable for under-hood and cabin-mounted automotive subsystems such as battery monitoring, tire pressure sensors, and HVAC controls. While not AEC-Q200 qualified, its tested behavior at +125°C and low long-term drift (1.2 mV/1000 hrs at 125°C) supports reliability-critical non-safety automotive functions when paired with appropriate system-level derating and qualification.
REF192FS-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- REF19
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 30 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 25µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 3V ~ 15V
- Current - Supply:
- 45µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
REF192FS-REEL FAQ
1.How can I place an order for REF192FS-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for REF192FS-REEL 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 REF192FS-REEL reliable?
The price and inventory of REF192FS-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF192FS-REEL is usually 5 days.
3.What payment methods are accepted for REF192FS-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF192FS-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF192FS-REEL?
REF192FS-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF192FS-REEL 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 REF192FS-REEL?
For technical support, including REF192FS-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF192FS-REEL requirements.
6.How does Aetrix verify that REF192FS-REEL is sourced from the original manufacturer or authorized distributors?
All REF192FS-REEL 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 REF192FS-REEL meets industry standards.
7.What is the process for return or replacement of REF192FS-REEL?
All REF192FS-REEL units undergo pre-shipment inspection (PSI). If there is an issue with REF192FS-REEL, 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 REF192FS-REEL part is unused and in its original packaging.
Return procedure for REF192FS-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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