My Inquiry
My Account
Analog Devices Inc. ADR280ARTZ-REEL7
- Part No.:
- ADR280ARTZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADR280ARTZ-REEL7.pdf
- Description:
- IC VREF SERIES 0.4% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:10,297
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADR280ARTZ-REEL7 from Analog Devices is a 1.2 V ultralow-power band gap voltage reference IC optimized for dynamic supply environments, featuring 40 ppm/°C max temperature coefficient, −80 dB PSRR at 220 Hz, and 16 μA max supply current. It serves as a precision analog reference in GSM/3G baseband ICs like AD6535 where battery voltage fluctuates during RF power amplifier bursts.
For engineers reviewing the ADR280ARTZ-REEL7 datasheet, ADR280ARTZ-REEL7 pinout, ADR280ARTZ-REEL7 application, or ADR280ARTZ-REEL7 equivalent, key selection criteria include its 2.4 V to 5.5 V operating range, 1.2 V ±5 mV output accuracy over −40°C to +85°C, low 12.5 nV/√Hz noise density, and SOT-23-3 package compatibility with space-constrained portable designs.
Technical Context
The ADR280ARTZ-REEL7 implements a trimmed band gap core generating a stable 1.2 V reference without internal gain stages, enabling user-defined output scaling via external op amps. Its architecture uses PTAT/CTAT cancellation with laser-trimmed resistors to achieve <20 ppm/°C typical TCVO over 0°C–50°C.
It operates with no load or up to 10 μA output current, supports floating reference configurations (V− elevated), and requires only 0.1 μF ceramic decoupling on VOUT and VIN. Start-up time is 2 ms, and nominal load capacitance is specified at 1 μF for stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.200 V ±5 mV (1.195–1.205 V) over full temp and load range - ensures ADC/DAC reference accuracy without calibration. |
| Temperature Coefficient | 40 ppm/°C max (−40°C to +85°C) - limits drift to ±3.4 mV across industrial range. |
| Power Supply Ripple Rejection | −80 dB at 220 Hz - suppresses battery ripple during GSM transmit bursts, critical for AD6535 analog baseband performance. |
| Supply Current | 16 μA max - enables multi-year operation in coin-cell–powered devices. |
| Line Regulation | 12 ppm/V max - maintains output stability despite 2.4–5.5 V input variation. |
| Output Noise Density | 12.5 nV/√Hz typical at 400 kHz - minimizes added noise in high-resolution data converter references. |
| Start-Up Time | 2 ms - allows fast wake-up in duty-cycled portable systems. |
Pinout & Package
ADR280ARTZ-REEL7 is housed in a RoHS-compliant 3-lead SOT-23-3 (RT-3) package with gull-wing leads, 1.3 mm pitch, and JEDEC TO-236-AB compliance. Footprint area is 2.90 × 1.30 mm, height ≤1.12 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | Accepts 2.4–5.5 V; must be decoupled with 0.1 μF ceramic capacitor placed adjacent to pin. |
| VOUT | Reference voltage output | Delivers 1.2 V ±5 mV; drives ≤10 μA load directly or buffers via op amp for higher current/sinking capability. |
| V− | Negative supply/ground reference | May be floated above ground to create offset references (e.g., negative or boosted outputs); not internally tied to system ground. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow quiescent current | 16 μA max enables >10-year battery life in 10 μA-average IoT sensors. |
| High PSRR at low frequency | −80 dB at 220 Hz rejects GSM burst-induced supply ripple before it corrupts ADC conversions. |
| User-configurable output topology | No internal gain stage allows flexible buffered, boosted, scaled, or negative reference generation using discrete op amps. |
| Low thermal drift | 40 ppm/°C max ensures <±3.4 mV total error across −40°C to +85°C - suitable for uncalibrated industrial instrumentation. |
| Minimal external components | Only two 0.1 μF ceramic capacitors required for stable operation - reduces BOM count and PCB area. |
Applications
| GSM/3G Mobile Baseband Reference | Portable Medical Sensor Reference |
|---|---|
Use Scenario: Integrated into AD6535 analog baseband IC in GSM mobile stations during RF power amplifier transmission cycles. IC Role / Device Role / Timing Role: Provides stable 1.2 V reference for ADCs, DACs, and audio codecs while rejecting battery voltage sag. Use Value: Prevents measurement errors and audio distortion caused by supply ripple during 217 Hz TDMA bursts. |
Use Scenario: Powers precision analog front-end of wearable ECG or pulse oximeter with coin-cell battery. IC Role / Device Role / Timing Role: Serves as low-noise, low-drift reference for 16-bit delta-sigma ADC sampling biopotential signals. Use Value: Enables sub-μV resolution with <1 LSB INL drift over body temperature range (20–40°C). |
| Low-Power Data Logger Reference | Industrial RTU Analog Input Module |
Use Scenario: Reference source in solar-powered environmental sensor node logging temperature/humidity every 5 minutes. IC Role / Device Role / Timing Role: Supplies 1.2 V reference to SAR ADC during brief active periods; sleeps at 16 μA between samples. Use Value: Extends 200 mAh Li-SOCl₂ battery life to >5 years with 99.9% duty-cycle sleep efficiency. |
Use Scenario: Precision reference in 4–20 mA loop-powered remote terminal unit for factory floor analog inputs. IC Role / Device Role / Timing Role: Sets accurate 1.2 V baseline for programmable gain instrumentation amplifier driving 24-bit ΣΔ ADC. Use Value: Maintains ±0.1% full-scale accuracy over −40°C to +70°C ambient without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6126AASA+T | 1.2 V output, 3 ppm/°C max TC, 12 μA supply current, SO-8 package | Higher accuracy and lower drift but larger footprint and fixed SO-8 layout - unsuitable for ultra-compact SOT-23 designs | Select when long-term stability and low TC outweigh size constraints. |
| REF3012AIDBZR | 1.2 V output, 50 ppm/°C max TC, 50 μA supply current, SOT-23-3 package | Same footprint but higher power and drift - trades off battery life and thermal error for lower cost | Select for cost-sensitive, non-battery-critical industrial applications where 50 μA supply is acceptable. |
Compared with MAX6126AASA+T and REF3012AIDBZR, the ADR280ARTZ-REEL7 uniquely balances SOT-23-3 size, 16 μA ultra-low power, and −80 dB PSRR - making it irreplaceable in GSM burst-suppression and multi-year battery use cases.
Availability
ADR280ARTZ-REEL7 is available at Aetrix Electronics and suitable for GSM mobile baseband references, portable medical sensor front-ends, and low-power data loggers requiring stable component supply with guaranteed long-term continuity.
Supply support for ADR280ARTZ-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, founded in 1965 and headquartered in Wilmington, MA.
The ADR280ARTZ-REEL7 belongs to Analog Devices' precision voltage reference product line, engineered specifically for battery-powered wireless infrastructure and portable instrumentation demanding ultralow power, high PSRR, and compact packaging.
FAQ
What is the operating temperature range of the ADR280ARTZ-REEL7?
The ADR280ARTZ-REEL7 is specified for continuous operation from −40°C to +85°C, meeting extended industrial requirements. Its 40 ppm/°C maximum temperature coefficient ensures output voltage remains within ±5 mV across this full range, validated per Table 1 in the Rev. C datasheet under −40°C < TA < +85°C conditions.
Does the ADR280ARTZ-REEL7 require external capacitors for stability?
Yes - the ADR280ARTZ-REEL7 requires a 0.1 μF ceramic capacitor placed directly at the VOUT pin and another 0.1 μF ceramic capacitor at the V+ pin, both mounted as close as possible to their respective pins. This configuration ensures stability across all loads up to 10 μA and prevents oscillation, as confirmed in Figure 12 and Applications Information section of the datasheet.
Can the ADR280ARTZ-REEL7 generate a negative reference voltage?
Yes - the ADR280ARTZ-REEL7 supports negative reference generation by elevating the V− pin above ground. As shown in Figure 19, connecting V− to the inverting input of an op amp (e.g., AD8541) with VOUT at virtual ground forces V− to become a precise −1.2 V output, eliminating need for tight-tolerance resistors.
What is the maximum load current the ADR280ARTZ-REEL7 can drive directly?
The ADR280ARTZ-REEL7 is rated for direct load currents up to 10 μA, as specified in Table 1 under "Output Voltage" conditions. Exceeding this draws excessive ground current and degrades line regulation and temperature stability; higher loads require external op-amp buffering per Figure 14.
Is the ADR280ARTZ-REEL7 RoHS compliant and lead-free?
Yes - the "Z" suffix in ADR280ARTZ-REEL7 explicitly denotes RoHS compliance and lead-free construction per Analog Devices' ordering guide (Page 11, Note 1). The device meets EU RoHS Directive 2011/65/EU and is compatible with standard Pb-free reflow profiles.
ADR280ARTZ-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):
- 1.2V
- Voltage - Output (Max):
- -
- Current - Output:
- 100 µA
- Tolerance:
- ±0.4%
- Temperature Coefficient:
- 40ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 12.5µVrms
- Voltage - Input:
- 2.4V ~ 5.5V
- Current - Supply:
- 16µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ADR280ARTZ-REEL7 FAQ
1.How can I place an order for ADR280ARTZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR280ARTZ-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 ADR280ARTZ-REEL7 reliable?
The price and inventory of ADR280ARTZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR280ARTZ-REEL7 is usually 5 days.
3.What payment methods are accepted for ADR280ARTZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR280ARTZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR280ARTZ-REEL7?
ADR280ARTZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR280ARTZ-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 ADR280ARTZ-REEL7?
For technical support, including ADR280ARTZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR280ARTZ-REEL7 requirements.
6.How does Aetrix verify that ADR280ARTZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADR280ARTZ-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 ADR280ARTZ-REEL7 meets industry standards.
7.What is the process for return or replacement of ADR280ARTZ-REEL7?
All ADR280ARTZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADR280ARTZ-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 ADR280ARTZ-REEL7 part is unused and in its original packaging.
Return procedure for ADR280ARTZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADR280ARTZ-REEL7 Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
