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Analog Devices Inc. AD1582ARTZ-REEL7
- Part No.:
- AD1582ARTZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AD1582ARTZ-REEL7.pdf
- Description:
- IC VREF SERIES 0.8% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,248
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Product details
Overview
AD1582ARTZ-REEL7 from Analog Devices is a 2.5 V, micropower, precision series voltage reference IC in SOT-23-3 package, delivering ±2 mV initial accuracy (0.08%), 50 ppm/°C max temperature coefficient over −40°C to +125°C, 70 µA max quiescent current, and ±5 mA load drive capability. It serves as a stable reference for high-resolution ADCs, DACs, and sensor signal chains in battery-powered industrial and automotive systems.
For engineers reviewing the AD1582ARTZ-REEL7 datasheet, AD1582ARTZ-REEL7 pinout, AD1582ARTZ-REEL7 application, or AD1582ARTZ-REEL7 equivalent, key selection criteria include guaranteed 200 mV supply headroom, 50 µV rms wideband noise (10 Hz–10 kHz), thermal hysteresis ≤115 ppm, long-term stability of 100 ppm/1000 hr, and AEC-Q200 qualification for automotive use.
Technical Context
The AD1582ARTZ-REEL7 implements a band gap-based series reference architecture with patented temperature drift curvature correction, enabling low nonlinearity (residual drift ~200 ppm) across −40°C to +125°C. Its internal circuit sums a forward-biased VBE and a proportional-to-absolute-temperature (PTAT) voltage to generate a stable 2.5 V output.
It operates as a 3-terminal series regulator-accepting VIN at Pin 3, referencing GND at Pin 2, and sourcing/sinking up to ±5 mA from VOUT at Pin 1-with dynamic performance validated for fast turn-on settling (100 µs to 0.1%) and 80 dB ripple rejection at 120 Hz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500 V ±2 mV at 25°C - enables direct interface with 2.5 V ADC/DAC references without scaling. |
| Initial Accuracy | ±0.08% (±2 mV) - guarantees full-scale error budget compatibility with 12-bit converters. |
| Temp Coefficient | 50 ppm/°C max (−40°C to +125°C) - ensures ≤±8 mV total drift over full range, additive to initial error. |
| Quiescent Current | 70 µA max - supports multi-year operation in coin-cell–powered IoT sensors and portable DMMs. |
| Noise (10 Hz–10 kHz) | 50 µV rms - contributes <0.03 LSB error in 16-bit, 2.5 V full-scale SAR ADCs. |
| Supply Headroom | 200 mV min (VIN ≥ VOUT + 200 mV) - allows operation from 2.7 V rails in 3 V systems with minimal dropout. |
| Load Drive | ±5 mA - directly drives ADC reference inputs, op-amp bias networks, and small DAC loads without buffering. |
Pinout & Package
SOT-23-3 (RT suffix) surface-mount package: 3-pin, compact footprint (2.92 mm × 1.3 mm × 1.02 mm), lead-free, RoHS-compliant, qualified per AEC-Q200 Grade 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (Pin 1) | Reference Output | Provides regulated 2.5 V output; must be decoupled with ≥0.2 µF capacitor for stability under light loads. |
| GND (Pin 2) | Analog Ground Reference | Return path for load current and internal bias; requires low-impedance connection to system ground plane. |
| VIN (Pin 3) | Input Supply | Accepts 2.7 V to 12 V input; minimum 200 mV headroom above VOUT required for regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Series topology | Eliminates external series resistor; achieves full efficiency across input voltage range (no wasted supply current). |
| Low dropout headroom | 200 mV enables use in 2.7 V battery systems where shunt references fail due to insufficient voltage margin. |
| Automotive qualification | AEC-Q200 Grade 1 (−40°C to +125°C) ensures reliability in engine control units and ADAS sensor modules. |
| Thermal hysteresis control | ≤115 ppm output shift after thermal cycling - critical for calibration-critical instrumentation and smart transmitters. |
| Fast turn-on settling | 100 µs to 0.1% with 0.2 µF load - supports power-gated reference architectures in portable devices. |
Applications
| Portable Instrumentation | Industrial Sensor Transmitters |
|---|---|
Use Scenario: Handheld digital multimeters (DMMs) and portable oscilloscope front-ends requiring stable 2.5 V reference for 12–16-bit ADCs during battery discharge from 3.6 V to 2.7 V. IC Role / Device Role / Timing Role: Primary voltage reference source for successive-approximation register (SAR) ADCs and analog front-end gain stages. Use Value: 200 mV headroom allows uninterrupted operation down to 2.7 V supply; 50 µV rms noise limits quantization error to <0.03 LSB in 16-bit conversion. | Use Scenario: 4–20 mA smart pressure/temperature transmitters operating in harsh industrial environments (−40°C to +85°C ambient). IC Role / Device Role / Timing Role: Precision excitation and reference for bridge sensor conditioning circuits and HART modem interfaces. Use Value: 50 ppm/°C tempco and 100 ppm/1000 hr long-term stability ensure field calibration validity over 5+ years without recalibration. |
| Automotive Body Electronics | PCMCIA & Embedded Computing |
Use Scenario: In-vehicle infotainment (IVI) power management units requiring AEC-Q200–qualified 2.5 V reference for audio codec biasing and display driver sequencing. IC Role / Device Role / Timing Role: Stable reference for analog comparators, LDO feedback dividers, and microcontroller ADC peripherals. Use Value: −40°C to +125°C specified operation and solder heat shift ≤±0.2% ensure robustness through reflow and thermal cycling in automotive PCB assembly. | Use Scenario: PCMCIA card-based data acquisition modules interfacing with laptop USB hosts, needing low-quiescent 2.5 V reference for ±5 V powered signal conditioning. IC Role / Device Role / Timing Role: Reference for dual-supply op-amps and rail-to-rail input/output ADC drivers. Use Value: 70 µA quiescent current minimizes standby power draw; ±5 mA drive capability eliminates need for external buffer op-amps. |
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, 30 ppm/°C max, 6 µA quiescent current, SOT-23-5 package with enable pin | Lower power but requires additional enable control logic; no AEC-Q200 qualification | Select when ultra-low sleep current dominates over automotive compliance and board space is not constrained. |
| REF3025AIDBZR | 2.5 V, 50 ppm/°C max, 45 µA quiescent current, SOT-23-3, no AEC-Q200 rating | Similar tempco and package, but rated only for −40°C to +125°C industrial grade (not automotive) | Select for cost-sensitive industrial designs where AEC-Q200 is not mandated and lower IQ is prioritized. |
Compared with ADR3425ARJZ-R7 and REF3025AIDBZR, the AD1582ARTZ-REEL7 uniquely combines AEC-Q200 qualification, 200 mV dropout, and ±5 mA drive in a 3-pin SOT-23-making it the only choice for space-constrained automotive sensor nodes requiring robust, self-contained reference performance.
Availability
AD1582ARTZ-REEL7 is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor transmitters, automotive body electronics, and PCMCIA data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD1582ARTZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD158x series was designed specifically for micropower, high-accuracy voltage reference needs in battery-operated and automotive-grade systems where low dropout, low noise, and long-term stability are mandatory.
FAQ
What is the maximum supply voltage for AD1582ARTZ-REEL7?
The AD1582ARTZ-REEL7 supports a maximum supply voltage of 12 V applied to the VIN pin. Absolute maximum rating is 12 V relative to GND; exceeding this risks permanent damage. Operation above 12 V is not supported, and negative transients >5 V on VIN must be avoided to prevent latch-up or junction breakdown.
Does AD1582ARTZ-REEL7 require an external capacitor for stability?
Yes, AD1582ARTZ-REEL7 requires external capacitors for stable operation. A minimum 0.2 µF ceramic capacitor on the VOUT pin is required for loads <±0.1 mA; for full ±5 mA load range, a 1 µF output capacitor is recommended. An input capacitor (≥1 µF, typically 4.7 µF) improves transient response and ripple rejection.
Is AD1582ARTZ-REEL7 qualified for automotive applications?
Yes, AD1582ARTZ-REEL7 is AEC-Q200 qualified (Grade 1) for automotive use, with full electrical specifications guaranteed from −40°C to +125°C. It meets automotive reliability requirements including thermal cycling, solder heat resistance, and long-term stability under accelerated life testing.
What is the output voltage hysteresis specification for AD1582ARTZ-REEL7?
The AD1582ARTZ-REEL7 has a maximum output voltage hysteresis of 115 ppm, measured as the change in VOUT at +25°C after cycling from −40°C to +125°C and back. This low hysteresis ensures repeatable calibration accuracy in systems subject to repeated thermal excursions, such as engine bay sensors.
Can AD1582ARTZ-REEL7 sink current as well as source it?
Yes, AD1582ARTZ-REEL7 is a bidirectional series reference capable of sourcing and sinking up to ±5 mA from the VOUT pin. This allows it to actively regulate against both capacitive loading and active loads (e.g., op-amp inputs, comparator thresholds), unlike unidirectional shunt references.
AD1582ARTZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.8%
- Temperature Coefficient:
- 100ppm/°C
- Noise - 0.1Hz to 10Hz:
- 70µVp-p
- Noise - 10Hz to 10kHz:
- 50µVrms
- Voltage - Input:
- 2.7V ~ 12V
- Current - Supply:
- 70µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
AD1582ARTZ-REEL7 FAQ
1.How can I place an order for AD1582ARTZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD1582ARTZ-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 AD1582ARTZ-REEL7 reliable?
The price and inventory of AD1582ARTZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD1582ARTZ-REEL7 is usually 5 days.
3.What payment methods are accepted for AD1582ARTZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD1582ARTZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD1582ARTZ-REEL7?
AD1582ARTZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD1582ARTZ-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 AD1582ARTZ-REEL7?
For technical support, including AD1582ARTZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD1582ARTZ-REEL7 requirements.
6.How does Aetrix verify that AD1582ARTZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD1582ARTZ-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 AD1582ARTZ-REEL7 meets industry standards.
7.What is the process for return or replacement of AD1582ARTZ-REEL7?
All AD1582ARTZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD1582ARTZ-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 AD1582ARTZ-REEL7 part is unused and in its original packaging.
Return procedure for AD1582ARTZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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