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Analog Devices Inc. REF192GRUZ-REEL7
- Part No.:
- REF192GRUZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
REF192GRUZ-REEL7.pdf
- Description:
- IC VREF SERIES 0.4% 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,396
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Product details
Overview
REF192GRUZ-REEL7 from Analog Devices is a precision micropower low-dropout voltage reference IC delivering 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 and portable instrumentation where stable excitation or reference voltage is critical.
For engineers reviewing the REF192GRUZ-REEL7 datasheet, REF192GRUZ-REEL7 pinout, REF192GRUZ-REEL7 application, or REF192GRUZ-REEL7 equivalent, key selection criteria include dropout voltage (1.00 V @ 10 mA), sleep-mode current (15 μA), load regulation (4 ppm/mA), and SOIC_N package compatibility for space-constrained industrial sensor nodes.
Technical Context
The REF192GRUZ-REEL7 employs a patented curvature-corrected band gap core with laser-trimmed thin-film resistors to achieve low drift across −40°C to +85°C. Its SLEEP pin enables TTL/CMOS-compatible shutdown, reducing quiescent current to ≤15 μA while disabling output.
It operates with input-to-output headroom as low as 100 mV above nominal output (e.g., 3.5 V supply for 2.5 V output at 10 mA), and requires a 1 μF output bypass capacitor for stability and noise control per datasheet specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Output Voltage | 2.50 V - precisely trimmed for use as ADC/DAC reference or sensor excitation source |
| Initial Accuracy | ±2 mV maximum at 25°C - enables 12-bit system accuracy without calibration |
| Temperature Coefficient | 5 ppm/°C maximum over −40°C to +85°C - ensures <±0.5 mV drift across full industrial range |
| Supply Current | 45 μA maximum - supports multi-year battery life in solar-powered or loop-powered instruments |
| Sleep Mode Current | 15 μA maximum - allows power-gating during idle cycles without losing reference integrity |
| Dropout Voltage | 1.00 V @ 10 mA load - permits operation from low-voltage rails such as 3.5 V supplies |
| Load Regulation | 4 ppm/mA - maintains <±0.1 mV output shift over 0–30 mA load variation |
| Noise (0.1–10 Hz) | 25 μV p-p - suitable for 16-bit+ data acquisition systems requiring low-frequency stability |
Pinout & Package
REF192GRUZ-REEL7 is housed in an 8-lead SOIC_N (RU suffix) package, measuring 4.9 mm × 3.9 mm × 1.75 mm, with exposed pad not electrically connected. Pin 1 and Pin 5 are factory test points (TP) and must remain unconnected in circuit.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (TP) | Factory Zener trim point | No user connection; internal trimming node - floating or tied to GND degrades accuracy |
| 2 (VS) | Positive supply input | Accepts 2.6 V to 15 V; minimum headroom = 1.00 V for 10 mA load |
| 3 (SLEEP) | Digital enable/disable control | Low TTL/CMOS level disables output and reduces current to ≤15 μA |
| 4 (GND) | Analog ground reference | Must be star-connected to minimize noise coupling into reference output |
| 5 (TP) | Factory Zener trim point | No user connection; internal trimming node - floating or tied to GND degrades accuracy |
| 6 (NC) | No connect | Internally unused; leave unconnected per datasheet |
| 7 (NC) | No connect | Internally unused; leave unconnected per datasheet |
| 8 (OUTPUT) | Precision voltage output | 2.50 V ±2 mV; requires 1 μF ceramic capacitor to GND for stability and noise reduction |
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 (1.00 V @ 10 mA) | Supports direct regulation from single Li-ion or 3.3 V system rails |
| Sleep mode with 15 μA quiescent current | Reduces average power in duty-cycled sensor nodes by >65% vs active mode |
| Short-circuit protected output | Withstands indefinite output short to GND without damage or parameter shift |
| 1 μF output bypass requirement | Ensures phase margin >45° and suppresses 0.1–10 Hz noise to 25 μV p-p |
Applications
| Portable Instrumentation | High-Resolution Data Acquisition |
|---|---|
|
Use Scenario: Handheld multimeter with 24-hour battery life and auto-ranging analog front end. IC Role / Device Role / Timing Role: Primary 2.50 V reference for dual-slope ADC and LCD bias generation. Use Value: 45 μA supply current and 5 ppm/°C tempco enable ±0.01% measurement accuracy across 0–40°C ambient without recalibration. |
Use Scenario: 16-bit isolated DAQ module sampling at 100 kSPS with ±1 LSB INL. IC Role / Device Role / Timing Role: Reference source for SAR ADC and programmable gain amplifier offset nulling. Use Value: 25 μV p-p (0.1–10 Hz) noise and 4 ppm/mA load regulation preserve effective resolution under dynamic load conditions. |
| Solar-Powered Remote Sensors | Loop-Powered Industrial Transmitters |
|
Use Scenario: Wireless soil moisture node powered by 2.5 V solar cell + supercapacitor buffer. IC Role / Device Role / Timing Role: Stable excitation voltage for resistive bridge sensor and ADC reference. Use Value: 1.00 V dropout enables operation down to 3.5 V supply; sleep mode cuts reference current to 15 μA during 99% idle time. |
Use Scenario: 4–20 mA HART-enabled pressure transmitter with onboard microcontroller. IC Role / Device Role / Timing Role: Precision 2.50 V rail for DAC-controlled current loop and sensor signal conditioning. Use Value: ±2 mV initial accuracy and 125°C-rated performance ensure compliance with IEC 61508 SIL-2 functional safety requirements. |
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 | Better tempco but lacks digital shutdown; requires external enable logic for ultra-low-power cycling | Choose ADR3425ARJZ-R7 when lowest drift is prioritized over dynamic power control |
| MAX6126AASA+T | 2.5 V output, 3 ppm/°C max tempco, 350 μA supply current, no sleep mode, higher drive capability (10 mA) | Higher noise (40 μV p-p), no sleep function, but superior load transient response | Choose MAX6126AASA+T when driving capacitive DAC references with fast settling is required |
Compared with REF192GRUZ-REEL7, ADR3425ARJZ-R7 offers tighter temperature drift but forfeits programmable shutdown, while MAX6126AASA+T trades higher quiescent current for improved dynamic load handling - making REF192GRUZ-REEL7 optimal for battery- or energy-harvesting systems needing both precision and sleep control.
Availability
REF192GRUZ-REEL7 is available at Aetrix Electronics and suitable for portable instrumentation, high-resolution data acquisition, and loop-powered industrial transmitters requiring stable component supply with guaranteed long-term parametric consistency.
Supply support for REF192GRUZ-REEL7 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers 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 robust thermal stability.
FAQ
What is the maximum load current supported by REF192GRUZ-REEL7?
REF192GRUZ-REEL7 supports up to 30 mA of continuous output current at 25°C, with specified load regulation of 4 ppm/mA (E grade). At −40°C to +85°C, the maximum recommended load is 25 mA to maintain regulation within datasheet limits. Exceeding this may increase output deviation beyond 5 ppm/mA and affect long-term stability.
Does REF192GRUZ-REEL7 require an output capacitor, and if so, what value and type?
Yes, REF192GRUZ-REEL7 requires a 1 μF ceramic capacitor connected between OUTPUT and GND for stability and noise reduction, as specified in the datasheet. X7R or C0G dielectrics are recommended; tantalum or electrolytic capacitors are not advised due to ESR-related instability risks. Omitting this capacitor may cause oscillation or increased 0.1–10 Hz noise beyond the rated 25 μV p-p.
Can REF192GRUZ-REEL7 operate from a 3.3 V supply?
Yes, REF192GRUZ-REEL7 can operate from a 3.3 V supply, provided the load current does not exceed 10 mA - its dropout voltage is 1.00 V under that condition (3.3 V − 2.5 V = 0.8 V headroom, which meets the 1.00 V spec only at ≤10 mA). For 30 mA loads, a minimum 3.5 V supply is required to maintain regulation per Table 5 and Table 6.
What is the purpose of Pins 1 and 5 on REF192GRUZ-REEL7?
Pins 1 and 5 on REF192GRUZ-REEL7 are factory test points (TP) used for in-package Zener zapping during laser trimming to achieve ±2 mV initial accuracy. These pins are not intended for user connection; leaving them floating or tying them to any potential degrades output accuracy and is explicitly prohibited in the datasheet.
Is REF192GRUZ-REEL7 qualified for automotive applications?
REF192GRUZ-REEL7 is specified over −40°C to +85°C (extended industrial range) with typical performance validated to +125°C, and its datasheet notes suitability for automotive applications. However, it is not AEC-Q200 qualified; for production automotive ECUs, designers should verify qualification status with Analog Devices or select AEC-Q200-certified alternatives like the ADR3425QBRJZ.
REF192GRUZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Series:
- REF19
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 30 mA
- Tolerance:
- ±0.4%
- Temperature Coefficient:
- 25ppm/°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-TSSOP
REF192GRUZ-REEL7 FAQ
1.How can I place an order for REF192GRUZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for REF192GRUZ-REEL7 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 REF192GRUZ-REEL7 reliable?
The price and inventory of REF192GRUZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF192GRUZ-REEL7 is usually 5 days.
3.What payment methods are accepted for REF192GRUZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF192GRUZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF192GRUZ-REEL7?
REF192GRUZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF192GRUZ-REEL7 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 REF192GRUZ-REEL7?
For technical support, including REF192GRUZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF192GRUZ-REEL7 requirements.
6.How does Aetrix verify that REF192GRUZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All REF192GRUZ-REEL7 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 REF192GRUZ-REEL7 meets industry standards.
7.What is the process for return or replacement of REF192GRUZ-REEL7?
All REF192GRUZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with REF192GRUZ-REEL7, 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 REF192GRUZ-REEL7 part is unused and in its original packaging.
Return procedure for REF192GRUZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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