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Analog Devices Inc. REF196GSZ-REEL7
- Part No.:
- REF196GSZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
REF196GSZ-REEL7.pdf
- Description:
- IC VREF SERIES 0.3% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:125
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Product details
Overview
REF196GSZ-REEL7 from Analog Devices is a precision micropower low-dropout voltage reference delivering 3.30 V output with ±2 mV initial accuracy, 5 ppm/°C max temperature coefficient, and 45 μA max supply current - used in high-accuracy ADC/DAC biasing, portable instrumentation, and solar-powered sensor nodes.
For engineers reviewing the REF196GSZ-REEL7 datasheet, REF196GSZ-REEL7 pinout, REF196GSZ-REEL7 application, or REF196GSZ-REEL7 equivalent, key selection criteria include dropout voltage (≤1.25 V at 10 mA), sleep-mode current (≤15 μA), load regulation (4 ppm/mA), and SOIC_N package compatibility for space-constrained industrial designs.
Technical Context
The REF196GSZ-REEL7 employs a patented curvature-corrected band gap core with laser-trimmed thin-film resistors to achieve stable 3.30 V output across −40°C to +85°C. Its low-dropout architecture enables operation with only 100 mV headroom above output voltage.
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 short-circuit protection and 1 μF mandatory bypass capacitor ensure robustness in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Output Voltage | 3.30 V - precisely trimmed for 3.3 V system rail referencing and ADC full-scale calibration. |
| Initial Accuracy | ±2 mV maximum at 25°C - enables direct use in 12-bit to 14-bit data converters without trimming. |
| Temp. Coefficient | 5 ppm/°C maximum - ensures ≤0.42 mV drift over −40°C to +85°C (ΔT = 125°C). |
| Dropout Voltage | 1.25 V at 10 mA load - supports operation from 4.55 V supply in low-voltage embedded systems. |
| Supply Current | 45 μA maximum - allows >1-year battery life in 10 μA-average-power IoT sensor nodes. |
| Sleep Mode Current | 15 μA maximum - reduces standby power by 67% versus active mode for duty-cycled applications. |
| Load Regulation | 4 ppm/mA - contributes ≤0.13 mV error over 30 mA load range, critical for variable-current sensor interfaces. |
Pinout & Package
REF196GSZ-REEL7 is housed in an 8-lead SOIC_N (SOIC-8 narrow-body) package, RoHS-compliant and tape-and-reel packaged (REEL7 suffix). 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 Test Point | Zener-zap trim node; no user connection - floating or tied to GND causes output inaccuracy. |
| 2 (VS) | Positive Supply Input | Accepts 3.4 V to 15 V; minimum headroom 100 mV above 3.3 V output for regulation. |
| 3 (SLEEP) | Active-Low Sleep Control | Logic low (≤0.8 V) disables output and reduces IQ to ≤15 μA; requires pull-up for default active state. |
| 4 (GND) | Analog Ground Reference | Must be star-connected to system ground; separate from digital ground to minimize noise coupling. |
| 5 (TP) | Factory Test Point | Second Zener-zap node; electrically isolated from signal path - leave unconnected. |
| 6 (NC) | No Connect | Internally unused; must be left floating - not for grounding or decoupling. |
| 7 (NC) | No Connect | Internally unused; PCB pad may be omitted or left unmasked per layout guidelines. |
| 8 (OUTPUT) | Precision Voltage Output | 3.30 V source capable of sourcing up to 30 mA; requires 1 μF ceramic capacitor to GND for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-Corrected Band Gap Core | Enables 5 ppm/°C tempco without external compensation, eliminating need for thermistors or lookup tables. |
| Low-Dropout Operation | Regulates from supply as low as 3.4 V (3.3 V + 100 mV), enabling direct use with single-cell Li-ion or 3.3 V LDO outputs. |
| Integrated Sleep Mode | Reduces supply current to ≤15 μA while maintaining fast wake-up (<10 μs), ideal for burst-mode sensing. |
| Laser-Trimmed Thin-Film Resistors | Guarantees ±2 mV initial accuracy without post-assembly calibration, reducing test time and BOM cost. |
| Short-Circuit Protected Output | Withstands indefinite output-to-GND faults without damage or parameter shift, improving field reliability. |
Applications
| Portable Instrumentation | High-Resolution Data Acquisition |
|---|---|
|
Use Scenario: Handheld multimeter with 16-bit SAR ADC and coin-cell battery. IC Role / Device Role / Timing Role: Primary reference for ADC full-scale calibration and internal DAC offset correction. Use Value: 45 μA quiescent current extends battery life to >2 years; 5 ppm/°C tempco maintains <0.01% reading drift across operating temperature. |
Use Scenario: Industrial vibration sensor node with 24-bit sigma-delta ADC and LoRaWAN radio. IC Role / Device Role / Timing Role: Stable 3.30 V reference for ADC analog front-end and precision current source excitation. Use Value: 30 mA output drive powers external op-amp buffers; sleep mode cuts system idle current by 67% during radio-off intervals. |
| Solar-Powered Environmental Sensors | Loop-Powered 4–20 mA Transmitters |
|
Use Scenario: Remote soil moisture monitor powered by 3.6 V solar cell + supercapacitor. IC Role / Device Role / Timing Role: Low-headroom reference for microcontroller ADC and temperature-compensated sensor signal conditioning. Use Value: 1.25 V dropout at 10 mA allows regulation down to 4.55 V input - matches solar cell's peak power point under low-light conditions. |
Use Scenario: Two-wire 4–20 mA pressure transmitter with HART modulation and 3.3 V microcontroller. IC Role / Device Role / Timing Role: Precision 3.30 V reference for DAC-controlled current loop and sensor bridge excitation. Use Value: ±2 mV initial accuracy ensures <0.04% span error before calibration; load regulation limits current-loop error to <0.001% over full 20 mA range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3433ARJZ-R7 | 3.3 V output, 10 ppm/°C max tempco, 6 μA typical supply current, SOT-23-5 package. | Lower power but higher tempco; lacks sleep mode and short-circuit protection. | Preferred for ultra-low-power wearable sensors where tempco tolerance >5 ppm/°C is acceptable. |
| MAX6126AASA33+T | 3.3 V output, 3 ppm/°C max tempco, 120 μA supply current, SO-8 package, no sleep pin. | Superior tempco and long-term stability, but higher quiescent current and no enable control. | Chosen when highest accuracy over extended temperature range (−40°C to +125°C) outweighs power and control flexibility needs. |
Compared with ADR3433ARJZ-R7 and MAX6126AASA33+T, REF196GSZ-REEL7 uniquely balances micropower operation (45 μA), low tempco (5 ppm/°C), integrated sleep control, and SOIC_N manufacturability - making it optimal for battery- or energy-harvesting–powered industrial instruments requiring both accuracy and configurability.
Availability
REF196GSZ-REEL7 is available at Aetrix Electronics and suitable for portable instrumentation, high-resolution data acquisition, and loop-current-powered transmitters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for REF196GSZ-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 precision, low-power, low-dropout voltage referencing in portable, solar-powered, and loop-powered instrumentation - emphasizing accuracy retention under varying thermal and supply conditions.
FAQ
What is the nominal output voltage of the REF196GSZ-REEL7?
The REF196GSZ-REEL7 provides a precisely trimmed nominal output voltage of 3.30 V, as confirmed in Table 1 of the Rev. L datasheet. This value is laser-trimmed during manufacturing and guaranteed across all electrical grades (E/F/G) at 25°C with ±2 mV initial accuracy. The 3.30 V output aligns directly with common microcontroller I/O rails and 3.3 V ADC reference requirements.
Does the REF196GSZ-REEL7 require an external output capacitor?
Yes, the REF196GSZ-REEL7 requires a minimum 1 μF ceramic capacitor connected between the OUTPUT pin and GND for stability, as explicitly stated in Notes 1 of Tables 3, 6, and 9. Omitting this capacitor risks oscillation or degraded load regulation. X7R or C0G dielectrics are recommended; tantalum or electrolytic capacitors are not advised due to ESR and aging effects.
What is the maximum load current the REF196GSZ-REEL7 can source?
The REF196GSZ-REEL7 is rated to source up to 30 mA continuously, as specified in the FEATURES section and confirmed in load regulation test conditions across multiple tables (e.g., Table 2, Table 5). At 30 mA, dropout voltage rises to 1.55 V (at VS = 3.6 V), so the minimum required supply is 4.85 V. Short-circuit protection prevents damage during overload events.
How does the SLEEP pin function on the REF196GSZ-REEL7?
The SLEEP pin on the REF196GSZ-REEL7 is an active-low TTL/CMOS-compatible control input. Applying ≤0.8 V (logic low) disables the output and reduces supply current to ≤15 μA; applying ≥2.4 V (logic high) enables normal operation with ≤45 μA supply current. The pin draws ≤8 μA in either state, and a pull-up resistor is required for default-active behavior in most applications.
Is the REF196GSZ-REEL7 qualified for automotive temperature ranges?
The REF196GSZ-REEL7 is specified over the extended industrial temperature range of −40°C to +85°C. While typical performance is documented up to +125°C (e.g., Table 17), Analog Devices does not qualify or guarantee operation beyond +85°C for this part number. For automotive AEC-Q100 applications, designers should consult the REF19x Automotive Grade variants or alternative qualified references such as the ADR4533.
REF196GSZ-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:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 30 mA
- Tolerance:
- ±0.3%
- Temperature Coefficient:
- 25ppm/°C
- Noise - 0.1Hz to 10Hz:
- 33µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 3.5V ~ 15V
- Current - Supply:
- 45µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
REF196GSZ-REEL7 FAQ
1.How can I place an order for REF196GSZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for REF196GSZ-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 REF196GSZ-REEL7 reliable?
The price and inventory of REF196GSZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF196GSZ-REEL7 is usually 5 days.
3.What payment methods are accepted for REF196GSZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF196GSZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF196GSZ-REEL7?
REF196GSZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF196GSZ-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 REF196GSZ-REEL7?
For technical support, including REF196GSZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF196GSZ-REEL7 requirements.
6.How does Aetrix verify that REF196GSZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All REF196GSZ-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 REF196GSZ-REEL7 meets industry standards.
7.What is the process for return or replacement of REF196GSZ-REEL7?
All REF196GSZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with REF196GSZ-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 REF196GSZ-REEL7 part is unused and in its original packaging.
Return procedure for REF196GSZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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