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Analog Devices Inc. AD1580ARTZ-REEL7
- Part No.:
- AD1580ARTZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AD1580ARTZ-REEL7.pdf
- Description:
- IC VREF SHUNT 0.82% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:15,012
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Product details
Overview
AD1580ARTZ-REEL7 from Analog Devices is a 2-terminal shunt voltage reference delivering a precise 1.225 V output with ±10 mV initial accuracy, ±100 ppm/°C temperature drift over −40°C to +85°C, and 20 µV rms wideband noise (10 Hz–10 kHz). It operates from 50 µA to 10 mA reverse current and is used in precision analog signal chains for battery-powered instrumentation and data converters.
For engineers reviewing the AD1580ARTZ-REEL7 datasheet, AD1580ARTZ-REEL7 pinout, AD1580ARTZ-REEL7 application, or AD1580ARTZ-REEL7 equivalent, key selection criteria include micropower operation at 50 µA minimum current, SOT-23-3 package compatibility, low dynamic output impedance (≤1 Ω), and stability with any capacitive load - critical for high-resolution ADC/DAC reference design.
Technical Context
The AD1580ARTZ-REEL7 employs band gap curvature correction to minimize nonlinear temperature drift, enabling guaranteed ±100 ppm/°C performance across −40°C to +85°C using the maximum deviation method. Its two-transistor ΔVBE-based architecture provides thermal tracking without requiring external compensation.
As a shunt reference, it functions as a precision voltage sink: reverse current flows through an external series resistor into the V+ terminal, while V− connects to system ground. Output regulation is maintained independently of load current, provided the total current remains within 50 µA–10 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.225 V nominal; ±10 mV initial error ensures ≤0.82% absolute tolerance at 25°C for 12-bit converter reference alignment. |
| Tempco | ±100 ppm/°C max; contributes ≤0.8 mV total drift over −40°C to +85°C, supporting 10-bit system accuracy without calibration. |
| Min Operating Current | 50 µA; enables operation from 3 V supplies with ≥57 kΩ series resistor, ideal for ultra-low-power portable systems. |
| Noise (10 Hz–10 kHz) | 20 µV rms; adds <0.05 LSB noise to a 12-bit, 2.5 V full-scale ADC, preserving effective resolution. |
| Dynamic Output Impedance | ≤1 Ω at 120 Hz; maintains <0.1% output perturbation under 1 mA transient load steps, ensuring stable DAC reference. |
| Turn-On Settling Time | 5 µs to 0.1%; allows rapid power cycling in duty-cycled measurement systems without reference stabilization delay. |
| ESD Rating | 4 kV HBM; supports robust handling during PCB assembly and field deployment in industrial environments. |
Pinout & Package
AD1580ARTZ-REEL7 is housed in a JEDEC-compliant 3-lead SOT-23-3 (RT-3) surface-mount package measuring 2.90 mm × 1.30 mm × 1.02 mm. Pin 1 is V+, Pin 2 is V−, and Pin 3 is NC (no connect).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Anode / Reverse Current Input | Current enters here to develop regulated 1.225 V between V+ and V−; must be connected via series resistor to supply rail. |
| V− | Cathode / Reference Ground | System ground reference node; all output voltage is measured relative to this terminal. |
| NC | No Connect | Internally unconnected; must remain floating - no PCB trace or solder joint permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Wide operating current range | 50 µA to 10 mA enables use in both micropower sensor nodes and higher-current reference buffers without redesign. |
| Capacitive load stability | Stable with any value of capacitive load eliminates need for external isolation resistors or phase-compensation networks. |
| Low output impedance | 0.5 Ω max DC output impedance minimizes IR drop under load variations, preserving reference accuracy in shared-rail systems. |
| Low-frequency noise | 5 µV p-p (0.1 Hz–10 Hz) reduces drift-induced errors in precision weigh scales and thermocouple amplifiers. |
| High ESD robustness | 4 kV human body model rating simplifies ESD protection design in handheld test equipment and field instruments. |
Applications
| Portable Instrumentation | Industrial Smart Transmitters |
|---|---|
Use Scenario: Battery-powered digital multimeters (DMMs) and handheld oscilloscopes requiring stable reference for 12-bit ADCs over extended temperature ranges. IC Role / Device Role / Timing Role: Shunt voltage reference providing 1.225 V reference for SAR ADC front-end, directly sourcing/sinking converter reference current. Use Value: ±100 ppm/°C drift ensures <±0.8 mV error across −40°C to +85°C, maintaining 12-bit linearity without software calibration. |
Use Scenario: 4–20 mA loop-powered transmitters in process control, where long-term stability and low power are mandatory. IC Role / Device Role / Timing Role: Precision voltage reference for sigma-delta ADCs measuring RTD or strain gauge signals in hazardous-area sensors. Use Value: 50 µA minimum operating current allows operation from limited loop power budget while maintaining ±10 mV initial accuracy. |
| PCMCIA Data Acquisition Cards | 3 V Embedded Data Converters |
Use Scenario: PCMCIA cards with integrated 12-bit ADCs for laptop-based signal acquisition, constrained by tight board space and 3.3 V supply. IC Role / Device Role / Timing Role: Compact SOT-23-3 shunt reference replacing larger TO-92 devices, directly interfacing with AD7714-3 charge-balancing ADC. Use Value: 2.90 mm × 1.30 mm footprint saves >60% board area vs. legacy references, enabling dual-channel designs on credit-card-sized modules. |
Use Scenario: Low-voltage embedded systems using 3 V supply rails and 8–12-bit DACs such as AD7945 for analog output generation. IC Role / Device Role / Timing Role: Reference source for multiplying DACs, driving IOUT2 terminal with minimal linearity degradation (<0.2 LSB). Use Value: Low dynamic impedance (≤1 Ω) prevents code-dependent reference droop, preserving monotonicity and integral nonlinearity in closed-loop control outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD1580BRTZ-REEL7 | ±1 mV initial accuracy and ±50 ppm/°C tempco vs. ±10 mV/±100 ppm/°C for AD1580ARTZ-REEL7. | Suitable for 14-bit+ systems requiring tighter initial tolerance and lower drift; higher cost and tighter test screening. | Select when system-level accuracy demands <±0.1% total reference error over temperature without calibration. |
| TLVH431ACDBVR | Adjustable 1.24 V reference (2.5 V max), ±0.5% initial accuracy, ±50 ppm/°C, 80 µA min current, SOT-23-3. | Requires external resistor divider for 1.225 V; higher minimum current limits ultra-low-power use; wider output range offers flexibility. | Choose for cost-sensitive designs needing programmability or where 1.24 V output is acceptable and layout allows two-resistor configuration. |
Compared with AD1580BRTZ-REEL7, AD1580ARTZ-REEL7 trades initial accuracy and tempco for lower unit cost and broader production screening; versus TLVH431ACDBVR, it delivers fixed 1.225 V with lower quiescent current and no external components - optimizing for simplicity and micropower in space-constrained converters.
Availability
AD1580ARTZ-REEL7 is available at Aetrix Electronics and suitable for portable instrumentation, industrial smart transmitters, and PCMCIA data acquisition cards requiring stable component supply with RoHS-compliant packaging and tape-and-reel delivery.
Supply support for AD1580ARTZ-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, serving precision instrumentation, industrial automation, and communications markets since 1965.
The AD1580 product line delivers micropower shunt references optimized for battery-operated and space-constrained measurement systems, emphasizing low drift, low noise, and SOT-23/SC70 package compatibility.
FAQ
What is the output voltage tolerance of the AD1580ARTZ-REEL7 at 25°C?
The AD1580ARTZ-REEL7 has a ±10 mV initial output voltage tolerance at 25°C, corresponding to ±0.82% of its nominal 1.225 V output. This specification is guaranteed per the ordering guide and applies to the A-grade device in SOT-23-3 packaging. The AD1580ARTZ-REEL7 does not require external trimming to meet this tolerance.
Can the AD1580ARTZ-REEL7 drive a capacitive load directly?
Yes, the AD1580ARTZ-REEL7 is stable with any value of capacitive load, including direct connection to 1 µF bypass capacitors. This eliminates the need for series isolation resistors in most applications. However, loads exceeding 1000 pF may cause ringing in transient response, so a small series resistor (e.g., 20 Ω) is recommended only for >1 nF loads.
What is the minimum supply current required for the AD1580ARTZ-REEL7 to regulate properly?
The AD1580ARTZ-REEL7 requires a minimum reverse current of 50 µA to maintain regulation across its full −40°C to +85°C temperature range. At 25°C, regulation is maintained down to 20 µA, but 50 µA is the guaranteed minimum for specified performance. This enables operation from 3 V supplies with series resistors up to 57 kΩ.
How does the AD1580ARTZ-REEL7 compare to the B-grade version in terms of temperature drift?
The AD1580ARTZ-REEL7 has a maximum temperature coefficient of ±100 ppm/°C, whereas the AD1580BRTZ-REEL7 is rated at ±50 ppm/°C. This means the B-grade part contributes half the voltage drift over temperature - approximately ±0.8 mV vs. ±1.6 mV across −40°C to +85°C - making it preferable for 14-bit+ precision systems.
Is the AD1580ARTZ-REEL7 RoHS compliant?
Yes, the AD1580ARTZ-REEL7 is RoHS compliant, as indicated by the "Z" suffix in its part number per Analog Devices' ordering guide. It meets EU Directive 2011/65/EU requirements and contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE).
AD1580ARTZ-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:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 1.225V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.82%
- Temperature Coefficient:
- 100ppm/°C
- Noise - 0.1Hz to 10Hz:
- 5µVp-p
- Noise - 10Hz to 10kHz:
- 20µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 50 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
AD1580ARTZ-REEL7 FAQ
1.How can I place an order for AD1580ARTZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD1580ARTZ-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 AD1580ARTZ-REEL7 reliable?
The price and inventory of AD1580ARTZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD1580ARTZ-REEL7 is usually 5 days.
3.What payment methods are accepted for AD1580ARTZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD1580ARTZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD1580ARTZ-REEL7?
AD1580ARTZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD1580ARTZ-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 AD1580ARTZ-REEL7?
For technical support, including AD1580ARTZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD1580ARTZ-REEL7 requirements.
6.How does Aetrix verify that AD1580ARTZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD1580ARTZ-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 AD1580ARTZ-REEL7 meets industry standards.
7.What is the process for return or replacement of AD1580ARTZ-REEL7?
All AD1580ARTZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD1580ARTZ-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 AD1580ARTZ-REEL7 part is unused and in its original packaging.
Return procedure for AD1580ARTZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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