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Analog Devices Inc. REF192GS-REEL7
- Part No.:
- REF192GS-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
REF192GS-REEL7.pdf
- Description:
- IC VREF SERIES 0.4% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,651
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Product details
Overview
REF192GS-REEL7 from Analog Devices is a precision micropower low-dropout voltage reference IC delivering 2.50 V ±2 mV initial accuracy, 5 ppm/°C max temperature coefficient, and 45 μA max supply current across −40°C to +85°C. It features sleep mode (15 μA), short-circuit protection, and supports portable instrumentation, high-resolution ADC/DAC biasing, and solar-powered sensor nodes.
For engineers reviewing the REF192GS-REEL7 datasheet, REF192GS-REEL7 pinout, REF192GS-REEL7 application, or REF192GS-REEL7 equivalent, key selection criteria include dropout voltage at 10 mA load (1.00 V), load regulation (4 ppm/mA), line regulation (4 ppm/V), and SOIC_N package compatibility with Kelvin sensing and sleep control.
Technical Context
The REF192GS-REEL7 implements a patented curvature-corrected band gap core with laser-trimmed thin-film resistors to achieve <5 ppm/°C drift over industrial temperature range. Its low-dropout architecture enables stable 2.50 V output from supplies as low as 3.5 V at 10 mA load.
Sleep mode is controlled via TTL/CMOS-compatible SLEEP pin (VH ≥ 2.4 V, VL ≤ 0.8 V), reducing quiescent current to ≤15 μA while disabling output. Output stability requires a mandatory 1 μF capacitor between OUTPUT and GND.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Output Voltage | 2.50 V - precisely trimmed for high-accuracy analog signal chains and data converter reference rails |
| Initial Accuracy | ±2 mV maximum at 25°C - enables 16-bit DAC/ADC full-scale accuracy without calibration |
| Temperature Coefficient | 5 ppm/°C maximum - ensures ≤0.625 mV drift over −40°C to +85°C operating range |
| Supply Current | 45 μA maximum - supports multi-year battery life in portable and loop-powered instruments |
| Dropout Voltage | 1.00 V at 10 mA load - allows operation from 3.5 V supply, critical for single-cell Li-ion or dual-AA systems |
| Load Regulation | 4 ppm/mA - maintains output stability under dynamic load changes typical in multiplexed sensor interfaces |
| Noise (0.1–10 Hz) | 25 μV p-p - minimizes quantization noise contribution in precision 24-bit sigma-delta ADC applications |
Pinout & Package
REF192GS-REEL7 is housed in an 8-lead SOIC_N (SOIC-8 narrow-body) package, RoHS-compliant and tape-and-reel packaged as indicated by the "-REEL7" suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (TP) | Factory Test Point | Zener-zap trimming node; must remain unconnected in end application per datasheet directive |
| 2 (VS) | Positive Supply Input | Accepts 3.5 V to 15 V input; dropout headroom requirement defines minimum viable supply |
| 3 (SLEEP) | Digital Sleep Control | TTL/CMOS-compatible input; logic low disables output and reduces IQ to ≤15 μA |
| 4 (GND) | Analog Ground Reference | Return path for reference output and internal circuitry; requires low-impedance connection to system ground plane |
| 5 (TP) | Factory Test Point | Second Zener-zap node; no user connection permitted per datasheet Note 2 |
| 6 (NC) | No Connect | Internally unused; must be left floating or tied to GND per layout best practice |
| 7 (NC) | No Connect | Internally unused; same handling as Pin 6 |
| 8 (OUTPUT) | Precision Voltage Output | 2.50 V regulated output; requires 1 μF ceramic bypass capacitor to GND for stability and noise reduction |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-corrected band gap core | Enables 5 ppm/°C max TCVO without external compensation components or calibration |
| Sleep mode with digital enable | Reduces supply current from 45 μA to ≤15 μA, extending battery life in duty-cycled sensor nodes |
| Low dropout voltage (1.00 V @ 10 mA) | Permits use with 3.5 V supplies-critical for energy-harvesting and single-cell battery systems |
| Short-circuit protected output | Withstands indefinite output short to GND without damage or parameter shift, improving field reliability |
| 1 μF output bypass requirement | Ensures stability and achieves specified 25 μV p-p noise; eliminates need for complex compensation networks |
Applications
| Portable Instrumentation | High-Resolution Data Converters |
|---|---|
|
Use Scenario: Handheld multimeters and portable gas analyzers powered by two AA cells (3.0 V nominal). IC Role / Device Role / Timing Role: Primary voltage reference for 24-bit sigma-delta ADC, providing stable 2.50 V reference rail. Use Value: 5 ppm/°C TCVO and 45 μA IQ ensure >18-month battery life and <0.01% measurement drift across operating temperature. |
Use Scenario: Industrial process controller with 16-bit SAR ADC and 12-bit DAC for analog I/O modules. IC Role / Device Role / Timing Role: Shared reference source for both ADC and DAC to eliminate gain mismatch and improve ratiometric accuracy. Use Value: ±2 mV initial accuracy and 4 ppm/mA load regulation maintain <0.02% total unadjusted error across full 0–30 mA load range. |
| Smart Sensor Nodes | Solar-Powered Remote Monitoring |
|
Use Scenario: Wireless temperature/humidity sensor node using ultra-low-power MCU and RF transceiver. IC Role / Device Role / Timing Role: Bias reference for precision RTD and humidity sensor signal conditioning amplifier. Use Value: Sleep mode activation synchronizes with MCU deep-sleep cycles, cutting reference IQ to 15 μA and enabling >5-year operation on coin cell. |
Use Scenario: Off-grid environmental monitor powered by small solar panel and supercapacitor buffer. IC Role / Device Role / Timing Role: Stable 2.50 V reference for ADC measuring solar panel voltage, battery SOC, and sensor outputs. Use Value: 1.00 V dropout enables operation down to 3.5 V input-matching supercapacitor discharge curve and maximizing energy harvest window. |
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 TC, 4.5 μA IQ, but only 10 mA max output current and no sleep mode | Better TC and lower IQ, but insufficient drive for 30 mA loads and lacks power-gating capability | Select ADR3425ARJZ-R7 only when load current ≤10 mA and sleep control is unnecessary |
| MAX6126AASA25+ | 2.5 V output, 3 ppm/°C TC, 120 μA IQ, 20 mA output, no sleep mode, higher noise (35 μV p-p) | Superior TC and tighter initial accuracy (±0.5 mV), but higher quiescent current and no power-down function | Choose MAX6126AASA25+ when ultimate TC performance is prioritized over power consumption and sleep control |
Compared with ADR3425ARJZ-R7 and MAX6126AASA25+, REF192GS-REEL7 uniquely balances 30 mA drive capability, 15 μA sleep current, and 5 ppm/°C TC in a cost-effective SOIC package-making it optimal for battery-constrained, high-load, and thermally variable applications.
Availability
REF192GS-REEL7 is available at Aetrix Electronics and suitable for portable instrumentation, high-resolution data converters, and solar-powered remote monitoring requiring stable component supply, long-term parametric consistency, and RoHS-compliant packaging.
Supply support for REF192GS-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 and manufacturing operations worldwide.
The REF19x series was engineered specifically for micropower, low-dropout precision reference needs in portable, loop-powered, and automotive-qualified systems-emphasizing thermal stability, supply flexibility, and robustness in harsh environments.
FAQ
What is the maximum load current supported by the REF192GS-REEL7?
The REF192GS-REEL7 delivers up to 30 mA of continuous output current while maintaining specified accuracy and regulation performance. At 30 mA load, dropout voltage rises to 1.40 V (at VS = 3.9 V), and load regulation remains within 10 ppm/mA for E-grade devices across −40°C to +85°C. This makes REF192GS-REEL7 suitable for driving ADC references, op-amp bias networks, and small sensor excitation circuits without external buffering.
Does the REF192GS-REEL7 require an output capacitor, and if so, what value and type?
Yes, the REF192GS-REEL7 requires a 1 μF ceramic capacitor connected directly between the OUTPUT and GND pins for stability and noise performance. This is mandatory per the datasheet's Applications Information section. X7R or C0G dielectrics are recommended for minimal capacitance shift over temperature and voltage. Omitting this capacitor risks oscillation, increased noise (beyond the specified 25 μV p-p), and degraded load regulation.
How does sleep mode operate on the REF192GS-REEL7, and what is its impact on output behavior?
Sleep mode on the REF192GS-REEL7 is activated by applying a logic low (≤0.8 V) to the SLEEP pin, which disables the output stage and reduces supply current to ≤15 μA. During sleep, the OUTPUT pin is actively pulled to GND-ensuring no floating or leakage-induced errors in downstream circuitry. The device resumes normal operation within microseconds after SLEEP returns high (≥2.4 V), with full 2.50 V output restored without settling delay beyond typical reference turn-on time.
Is the REF192GS-REEL7 qualified for automotive applications?
The REF192GS-REEL7 is specified over the extended industrial temperature range (−40°C to +85°C) with typical performance validated to +125°C, and its design incorporates features relevant to automotive subsystems-such as robust sleep mode, short-circuit protection, and low thermal drift. However, it is not AEC-Q200 qualified or explicitly marketed for automotive use by Analog Devices. For production automotive applications, designers should consult the manufacturer's latest qualification status and consider AEC-Q100-qualified alternatives like the ADR3425 or LT6654 series.
What is the purpose of Pins 1 and 5 (TP) on the REF192GS-REEL7, and can they be used in circuit design?
Pins 1 and 5 on the REF192GS-REEL7 are factory test points reserved for in-package Zener zapping during final voltage trimming. Their resistance values vary significantly unit-to-unit and serve no functional role in end-user operation. The datasheet explicitly states these pins must remain unconnected in all applications. Connecting them risks altering output accuracy, inducing instability, or damaging the internal trim network-so REF192GS-REEL7 designs must leave TP pins floating with no PCB traces or vias attached.
REF192GS-REEL7 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:
- ±0.4%
- 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-SOIC
REF192GS-REEL7 FAQ
1.How can I place an order for REF192GS-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for REF192GS-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 REF192GS-REEL7 reliable?
The price and inventory of REF192GS-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF192GS-REEL7 is usually 5 days.
3.What payment methods are accepted for REF192GS-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF192GS-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF192GS-REEL7?
REF192GS-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF192GS-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 REF192GS-REEL7?
For technical support, including REF192GS-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF192GS-REEL7 requirements.
6.How does Aetrix verify that REF192GS-REEL7 is sourced from the original manufacturer or authorized distributors?
All REF192GS-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 REF192GS-REEL7 meets industry standards.
7.What is the process for return or replacement of REF192GS-REEL7?
All REF192GS-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with REF192GS-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 REF192GS-REEL7 part is unused and in its original packaging.
Return procedure for REF192GS-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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