My Inquiry
My Account
Texas Instruments REF35160QDBVR
- Part No.:
- REF35160QDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
REF35160QDBVR.pdf
- Description:
- IC VREF SERIES 1.6V SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,051
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
REF35160QDBVR from Texas Instruments is a nanopower, high-precision series voltage reference delivering 1.6V output with ±0.05% initial accuracy, 12ppm/°C max temperature coefficient (−40°C to 105°C), and 650nA typical quiescent current in a 6-pin SOT-23 package. It serves as a stable excitation source for precision bridge sensors and biasing reference for low-power 12–16-bit ADCs in battery-operated industrial instrumentation.
For engineers reviewing the REF35160QDBVR datasheet, REF35160QDBVR pinout, REF35160QDBVR application, or REF35160QDBVR equivalent, key selection criteria include ultra-low IQ, 3.3ppmP-P 0.1Hz–10Hz noise, EN/NR pin control, −55°C to +125°C operating range, and SOT-23 footprint compatibility with space-constrained PCB layouts.
Technical Context
The REF35160QDBVR implements a bandgap-based series reference architecture with internal thermal curvature compensation to achieve ≤12ppm/°C drift over −40°C to 105°C. Its 650nA active-mode supply current enables multi-year operation from coin cells in remote sensor nodes.
It features dual control pins: EN for shutdown (reducing IQ to 0.1µA) and NR for external capacitor filtering to suppress 1/f noise. Output stability is maintained under ±5mA sink / +10mA source load conditions with ≤20ppm/mA load regulation and ≤160ppm/V line regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | 1.6V nominal - matches common DAC/ADC reference rails and sensor excitation requirements for 16-bit resolution systems. |
| Initial accuracy | ±0.05% max at 25°C - eliminates need for system-level calibration in portable medical and test equipment. |
| Tempco | 12ppm/°C max (−40°C to 105°C) - ensures <±120ppm total drift across industrial temperature range, critical for flow transmitter stability. |
| Quiescent current | 650nA typical - supports >10-year battery life in wireless fault indicators and handheld analyzers. |
| Low-frequency noise | 3.3ppmP-P (0.1Hz–10Hz) - enables sub-16-bit effective resolution in blood glucose monitors and optical modules. |
| Operating range | −55°C to +125°C - qualified for under-hood automotive and industrial servo drive control module environments. |
| Package | SOT-23 (DBV), 2.90mm × 1.60mm - compatible with standard pick-and-place and reflow processes; pin-compatible with legacy REF3x footprints. |
Pinout & Package
REF35160QDBVR is housed in a 6-pin SOT-23 (DBV) package with 2.90mm × 1.60mm body size and internally shorted GND pins (pins 1 and 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (pin 1) | Ground reference | Primary device ground; internally connected to pin 2 for low-impedance return path in noisy industrial environments. |
| GND (pin 2) | Ground reference | Secondary ground terminal; shorted to pin 1 on die to reduce ground loop errors in precision analog signal chains. |
| EN (pin 3) | Digital enable input | Active-high logic control: float or pull ≥0.7×VIN to enable; ≤0.3×VIN to enter 0.1µA shutdown mode for power gating. |
| VIN (pin 4) | Input supply | Accepts 1.7V min (for 1.6V VREF) to 6V; dropout voltage is 120mV at 5mA load, enabling use with low-headroom LDOs or batteries. |
| NR (pin 5) | Noise reduction node | Connect 1µF capacitor to GND to reduce 0.1Hz–10Hz noise by up to 50%; left floating for minimal external components. |
| VREF (pin 6) | Precision output | 1.6V regulated output capable of sourcing 10mA or sinking 5mA; low 20ppm/mA load regulation preserves accuracy across varying sensor loads. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ operation | 650nA typical active current enables >10-year operation from CR2032 coin cell in portable diagnostics devices. |
| EN-controlled shutdown | Reduces supply current to 0.1µA, allowing microcontroller-gated power cycling in battery-powered oscilloscope front-ends. |
| NR pin noise filtering | External capacitor on NR pin cuts 0.1Hz–10Hz noise by >40%, improving effective resolution in 16-bit data converters. |
| High-temperature operation | Functional from −55°C to +125°C with 12ppm/°C tempco, supporting deployment in unheated outdoor power quality analyzers. |
| Long-term stability | 40ppm drift over 1000 hours at 35°C - predictable aging behavior simplifies lifetime calibration in process analytics instruments. |
Applications
| Flow Transmitter | Blood Glucose Monitor |
|---|---|
Use Scenario: Provides excitation voltage for Wheatstone bridge pressure sensors in smart water/gas meters with LoRaWAN backhaul. IC Role / Device Role / Timing Role: Precision 1.6V reference for ratiometric bridge measurement and ADC biasing. Use Value: ±0.05% initial accuracy and 12ppm/°C tempco ensure <0.1% full-scale error over −25°C to +70°C field operating range. | Use Scenario: Powers electrochemical sensor strips and biases analog front-end in handheld point-of-care diagnostic devices. IC Role / Device Role / Timing Role: Low-noise 1.6V reference for 14-bit SAR ADC digitizing amperometric current signals. Use Value: 3.3ppmP-P 0.1Hz–10Hz noise enables detection of sub-nA current changes, critical for accurate glucose concentration calculation. |
| Servo Drive Control Module | Power Quality Analyzer |
Use Scenario: Supplies reference for isolated current-sense amplifiers monitoring motor phase currents in industrial servo inverters. IC Role / Device Role / Timing Role: Stable 1.6V reference for precision shunt-based current measurement with galvanic isolation. Use Value: −55°C to +125°C operation and 70ppm thermal hysteresis support reliable performance in high-temperature motor control enclosures. | Use Scenario: References high-speed 16-bit ADCs capturing harmonic distortion and transient events in 3-phase grid monitoring systems. IC Role / Device Role / Timing Role: Low-drift, low-noise reference for simultaneous sampling of voltage and current channels. Use Value: 20ppm/mA load regulation maintains accuracy across dynamic load steps during fault event capture, ensuring compliance with IEC 61000-4-30 Class A. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF34160RTER | 1.6V, ±0.05% accuracy, 10ppm/°C tempco (−40°C to 125°C), 550nA IQ, 5-pin SOT-23 | Lower tempco but no NR pin; requires external filter for same noise performance | Select when lowest possible drift over extended temperature range is prioritized and board area allows discrete RC filter. |
| ADR3416ARJZ-R7 | 1.6V, ±0.1% accuracy, 10ppm/°C tempco, 120µA IQ, 6-pin SOT-23 | Higher power consumption limits battery life; no EN/NR pins | Select when higher output current (±15mA) and robust ESD (±4kV HBM) are required in mains-powered test equipment. |
Compared with REF35160QDBVR, REF34160RTER offers tighter temperature coefficient but lacks noise-reduction capability, while ADR3416ARJZ-R7 delivers higher drive strength at the cost of 180× higher quiescent current-making REF35160QDBVR optimal for ultra-low-power, high-precision portable instrumentation where noise and battery life are critical.
Availability
REF35160QDBVR is available at Aetrix Electronics and suitable for flow transmitters, blood glucose monitors, and servo drive control modules requiring stable component supply with guaranteed long-term manufacturability and consistent parametric performance.
Supply support for REF35160QDBVR 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision voltage references and low-power signal chain solutions.
The REF35 family was designed specifically for ultra-low-power, high-accuracy applications including portable medical devices, industrial sensor nodes, and battery-backed instrumentation-where nanoscale current consumption must not compromise 16-bit system resolution.
FAQ
What is the maximum input voltage for REF35160QDBVR?
The absolute maximum input voltage for REF3516VR is 6.5V, but the recommended operating range is VREF + VDO (1.7V minimum for 1.6V output) up to 6V. At 5mA load, VDO is 120mV, so VIN can be as low as 1.72V. Exceeding 6.5V risks permanent damage per TI's Absolute Maximum Ratings table in SNAS809C.
Does REF35160QDBVR require an external capacitor on the NR pin?
No, REF35160QDBVR operates fully functional with the NR pin left floating. Connecting a 1µF capacitor between NR and GND reduces 0.1Hz–10Hz output noise by up to 50%, but it is optional. The device meets all specifications-including 3.3ppmP-P noise-without any external NR component, simplifying design for space-constrained applications.
Can REF35160QDBVR operate at −55°C?
Yes, REF35160QDBVR is fully specified to operate from −55°C to +125°C. While the 12ppm/°C temperature coefficient applies over −40°C to +105°C, functionality-including output regulation, EN control, and load capability-is guaranteed across the full −55°C to +125°C range per Section 6.3 of SNAS809C, making it suitable for aerospace and automotive under-hood applications.
What is the shutdown current of REF35160QDBVR?
The shutdown current of REF35160QDBVR is 0.1µA maximum at 25°C and 0.5µA maximum over −40°C to +125°C when the EN pin is held ≤0.3×VIN. This ultra-low shutdown IQ enables energy harvesting systems and wake-on-event architectures to maintain years of standby operation without measurable battery drain.
Is REF35160QDBVR pin-compatible with other REF35 variants?
Yes, all REF35x QDBVR variants-including REF35160QDBVR-share identical 6-pin SOT-23 (DBV) pinout, package dimensions (2.90mm × 1.60mm), and thermal characteristics. This allows direct substitution across output voltages (1.024V to 5.0V) without PCB layout changes, streamlining BOM consolidation and design reuse in multi-voltage sensor platforms.
REF35160QDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 1.6V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 12ppm/°C
- Noise - 0.1Hz to 10Hz:
- 3.8ppmp-p
- Noise - 10Hz to 10kHz:
- 0.7ppmrms
- Voltage - Input:
- 1.85V ~ 6V
- Current - Supply:
- 2.6µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
REF35160QDBVR FAQ
1.How can I place an order for REF35160QDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for REF35160QDBVR 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 REF35160QDBVR reliable?
The price and inventory of REF35160QDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF35160QDBVR is usually 5 days.
3.What payment methods are accepted for REF35160QDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF35160QDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF35160QDBVR?
REF35160QDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF35160QDBVR 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 REF35160QDBVR?
For technical support, including REF35160QDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF35160QDBVR requirements.
6.How does Aetrix verify that REF35160QDBVR is sourced from the original manufacturer or authorized distributors?
All REF35160QDBVR 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 REF35160QDBVR meets industry standards.
7.What is the process for return or replacement of REF35160QDBVR?
All REF35160QDBVR units undergo pre-shipment inspection (PSI). If there is an issue with REF35160QDBVR, 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 REF35160QDBVR part is unused and in its original packaging.
Return procedure for REF35160QDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
REF35160QDBVR 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…
