My Inquiry
My Account
Analog Devices Inc. ADR293TRU-EP-R7
- Part No.:
- ADR293TRU-EP-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADR293TRU-EP-R7.pdf
- Description:
- IC VREF SERIES 0.2% 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,772
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADR293TRU-EP-R7 from Analog Devices is a low-noise, micropower 5.0 V precision series voltage reference using XFET® architecture. It delivers 5.000 V ±10 mV initial accuracy, 30 ppm/°C max temperature coefficient over −55°C to +125°C, 15 μA max supply current, and 15 μV p-p (0.1 Hz–10 Hz) output noise-enabling high-accuracy ADC/DAC referencing in battery-powered defense instrumentation.
For engineers reviewing the ADR293TRU-EP-R7 datasheet, ADR293TRU-EP-R7 pinout, ADR293TRU-EP-R7 application, or ADR293TRU-EP-R7 equivalent, key selection criteria include military-grade thermal stability, sub-20 μA quiescent current, 5 mA output drive capability, and compatibility with REF02/REF19x-based legacy designs requiring extended temperature operation.
Technical Context
The ADR293TRU-EP-R7 implements an XFET® reference core, delivering ultralinear temperature drift and one-quarter the voltage noise of band gap references at equivalent bias current. Its series topology requires ≥6.0 V input and regulates against line variations up to 15 V while maintaining ≤150 ppm/V line regulation across the full military temperature range.
Designed for high-reliability embedded systems, it achieves 50 ppm long-term stability after 1000 hours at 125°C and exhibits 157 ppm thermal hysteresis. Output impedance remains below 1 Ω up to 10 kHz, supporting fast load transient response in precision data acquisition signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000 V ±10 mV at 25°C - ensures direct compatibility with 5 V ADC/DAC reference inputs without trimming. |
| Temp Coefficient | 30 ppm/°C max (−55°C to +125°C) - enables <±1.5 mV total drift across full military range for stable system calibration. |
| Supply Current | 15 μA max at 25°C - supports multi-year operation on coin-cell or solar-harvested power in portable instrumentation. |
| Voltage Noise | 15 μV p-p (0.1 Hz–10 Hz) - minimizes quantization uncertainty in 16-bit+ SAR and delta-sigma converters. |
| Output Current | 5 mA - drives multiple ADC reference inputs or op-amp bias networks without external buffering. |
| Line Regulation | 70 ppm/V typical (6–15 V) - maintains reference integrity despite battery voltage sag or unregulated supply ripple. |
| Load Regulation | 30 ppm/mA typical (0–5 mA) - ensures <±0.15 mV error shift under dynamic load changes in multiplexed sensor systems. |
Pinout & Package
Package: 8-Lead TSSOP (RU-8), RoHS-compliant, moisture-sensitive level 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No connect - must be left floating or tied to GND per layout guidelines to avoid parasitic coupling. |
| 2 | GND | Analog ground reference - requires low-impedance connection to system AGND plane for noise immunity. |
| 3 | OUT | 5.0 V precision output - routed with short, guarded trace to minimize EMI pickup in high-resolution measurement paths. |
| 4 | IN | Input supply (6.0–15 V) - decoupled with ≥1 μF ceramic capacitor placed within 2 mm of pin for stability. |
| 5 | NC | No connect - electrically isolated; no internal connection or function. |
| 6 | NC | No connect - electrically isolated; no internal connection or function. |
| 7 | NC | No connect - electrically isolated; no internal connection or function. |
| 8 | NC | No connect - electrically isolated; no internal connection or function. |
Key Features
| Feature | Design Value |
|---|---|
| XFET® reference core | Delivers ¼ the voltage noise of band gap references at same current, enabling higher resolution in low-power data loggers. |
| Military temperature range | Specified from −55°C to +125°C with full parameter guarantees - eliminates derating calculations for aerospace avionics. |
| Pin-compatible with REF02/REF19x | Direct drop-in replacement in existing layouts using REF02 or REF192/REF195 footprints - no PCB rework required. |
| Controlled manufacturing baseline | Single fab and test site with documented change notification - ensures consistent parametric performance across production lots. |
| Low thermal hysteresis | 157 ppm max - prevents calibration drift after thermal cycling in field-deployed test equipment. |
Applications
| Portable Instrumentation | Precision ADC Reference |
|---|---|
Use Scenario: Handheld multimeters and battery-operated environmental sensors requiring multi-year field life. IC Role / Device Role / Timing Role: Primary 5 V reference for 24-bit delta-sigma ADCs and analog front-end gain stages. Use Value: 15 μA supply current extends battery life beyond 5 years; 15 μV p-p noise preserves effective resolution >20 bits. | Use Scenario: High-accuracy data acquisition modules in industrial PLC I/O cards. IC Role / Device Role / Timing Role: Stable reference source for simultaneous sampling of multiple 16-bit SAR ADCs. Use Value: 30 ppm/°C tempco and 50 ppm long-term stability maintain <±0.01% system gain error over 10-year service life. |
| Solar-Powered Monitoring | Defense/Aerospace Systems |
Use Scenario: Remote structural health monitoring nodes powered by small photovoltaic panels. IC Role / Device Role / Timing Role: Voltage reference for ultra-low-power microcontroller ADCs and RF transceiver biasing. Use Value: 6.0 V minimum input allows operation directly from LiFePO₄ cells or single-cell solar harvesters without LDO pre-regulation. | Use Scenario: Flight control electronics and radar subsystems operating in extreme ambient conditions. IC Role / Device Role / Timing Role: Precision reference for DAC-controlled actuator drivers and sensor signal conditioning. Use Value: AQEC qualification, −55°C to +125°C guaranteed specs, and controlled baseline ensure compliance with MIL-PRF-38535 Class K requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF02FPZ | Higher 1.2 mA supply current; 50 ppm/°C tempco; only rated to +85°C | Limited to commercial/industrial environments; unsuitable for sustained high-temp operation | Select when cost sensitivity outweighs power and temperature requirements |
| ADR4550BRZ | Lower 10 ppm/°C tempco; 2.5 mA supply current; 500 μV p-p noise; +125°C max rating only | Superior stability but lacks −55°C operation and AQEC support | Select when ultimate precision is needed in non-military, non-cryogenic applications |
Compared with REF02FPZ and ADR4550BRZ, the ADR293TRU-EP-R7 uniquely balances micropower operation (15 μA), military temperature range (−55°C to +125°C), and AQEC compliance-making it the only option for SWaP-constrained defense platforms requiring guaranteed performance across full thermal extremes.
Availability
ADR293TRU-EP-R7 is available at Aetrix Electronics and suitable for portable instrumentation, precision ADC reference, and defense/aerospace systems requiring stable component supply with guaranteed long-term availability and controlled manufacturing lineage.
Supply support for ADR293TRU-EP-R7 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 defense markets since 1965.
The ADR293 product line delivers XFET®-based precision voltage references engineered for ultra-low noise, micropower operation, and extended temperature reliability in mission-critical embedded systems.
FAQ
What is the operating temperature range guaranteed for ADR293TRU-EP-R7?
The ADR293TRU-EP-R7 is fully specified and tested over −55°C to +125°C, meeting MIL-PRF-38535 Class K requirements. All electrical parameters-including output voltage accuracy, temperature coefficient, and supply current-are guaranteed across this full military temperature range, with no derating required.
Is ADR293TRU-EP-R7 pin-compatible with standard REF02 devices?
Yes, the ADR293TRU-EP-R7 uses the same 8-lead TSSOP (RU-8) package and identical pinout as the REF02 series. Pin-for-pin compatibility enables direct replacement in existing REF02-based designs without PCB modification, preserving layout integrity while upgrading to lower noise and wider temperature operation.
What does the "-EP" suffix indicate in ADR293TRU-EP-R7?
The "-EP" suffix denotes Enhanced Product qualification per Analog Devices' defense and aerospace program. This includes AQEC standard compliance, single-fab/single-test-site manufacturing, controlled baseline, product change notification, and full qualification data available upon request-ensuring long-term supply consistency and reliability for critical systems.
How much output current can ADR293TRU-EP-R7 deliver while maintaining specification?
The ADR293TRU-EP-R7 provides up to 5 mA of output current while maintaining all specifications, including load regulation of ≤150 ppm/mA and output voltage stability within ±10 mV. This supports driving multiple precision ADC references or op-amp bias networks without external buffers.
Does ADR293TRU-EP-R7 require an external capacitor for stability?
No external capacitor is required for basic stability, but Analog Devices recommends placing a ≥1 μF ceramic capacitor between IN and GND, located within 2 mm of the ADR293TRU-EP-R7 pins. This improves PSRR and suppresses high-frequency supply noise that could modulate the XFET® reference core.
ADR293TRU-EP-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Series:
- XFET®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 30ppm/°C
- Noise - 0.1Hz to 10Hz:
- 15µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 6V ~ 15V
- Current - Supply:
- 20µA
- Current - Cathode:
- -
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
ADR293TRU-EP-R7 FAQ
1.How can I place an order for ADR293TRU-EP-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR293TRU-EP-R7 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 ADR293TRU-EP-R7 reliable?
The price and inventory of ADR293TRU-EP-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR293TRU-EP-R7 is usually 5 days.
3.What payment methods are accepted for ADR293TRU-EP-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR293TRU-EP-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR293TRU-EP-R7?
ADR293TRU-EP-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR293TRU-EP-R7 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 ADR293TRU-EP-R7?
For technical support, including ADR293TRU-EP-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR293TRU-EP-R7 requirements.
6.How does Aetrix verify that ADR293TRU-EP-R7 is sourced from the original manufacturer or authorized distributors?
All ADR293TRU-EP-R7 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 ADR293TRU-EP-R7 meets industry standards.
7.What is the process for return or replacement of ADR293TRU-EP-R7?
All ADR293TRU-EP-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADR293TRU-EP-R7, 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 ADR293TRU-EP-R7 part is unused and in its original packaging.
Return procedure for ADR293TRU-EP-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADR293TRU-EP-R7 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…
