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Texas Instruments REF6150IDGKT
- Part No.:
- REF6150IDGKT
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
REF6150IDGKT.pdf
- Description:
- IC VREF SERIES 0.05% 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,033
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Product details
Overview
REF6150IDGKT from Texas Instruments is a high-precision, 5-V voltage reference with integrated ADC drive buffer, ±0.05% initial accuracy, 8 ppm/°C max temperature drift (–40°C to +125°C), 5 µVRMS total noise (with 47-µF capacitor), and <50 mΩ output impedance (DC–200 kHz). It directly drives the REF pin of precision SAR ADCs like ADS8881 in burst-mode data acquisition systems.
For engineers reviewing the REF6150IDGKT datasheet, REF6150IDGKT pinout, REF6150IDGKT application, or REF6150IDGKT equivalent, key selection criteria include first-sample 18-bit precision under dynamic load, low droop (<1 LSB at 1 MSPS with ADS8881), programmable short-circuit current limit, and verified compatibility with ADS88xx and ADS127xx ADC families.
Technical Context
The REF6150IDGKT integrates a bandgap voltage reference core with a low-output-impedance buffer optimized for driving switched-capacitor REF inputs of SAR and delta-sigma ADCs. Its architecture includes separate force/sense outputs (OUT_F/OUT_S) and dedicated ground paths (GND_F/GND_S) to maintain linearity under transient load.
It features a programmable short-circuit current limit via the SS pin, a filter capacitor pin (FILT) requiring ≥1 µF to ground for stability, and an enable pin (EN) supporting 1 µA shutdown current. The device operates from 5.3 V to 5.5 V input and delivers ±3 mA output current while maintaining 50 ppm/V line regulation over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000 V ±0.05% - enables direct interface with 5-V full-scale ADCs without scaling. |
| Temp Drift | 8 ppm/°C max (–40°C to +125°C) - ensures ≤±96 ppm error across industrial temperature range. |
| Noise (0.1–10 Hz) | 3 µVPP/V - preserves SNR >100 dB in precision ADC applications like medical instrumentation. |
| Output Impedance | <50 mΩ (DC–200 kHz) - sustains first-sample precision to 18 bits with ADS8881 at 1 MSPS. |
| Supply Current | 0.83–0.95 mA active, 1–3 µA shutdown - supports low-power portable and battery-backed DAQ systems. |
| Load Regulation | 20 ppm/mA max (25°C), 50 ppm/mA max (–40°C to +125°C) - maintains accuracy under varying ADC REF pin current draw. |
| Short-Circuit Limit | 10.5 mA (SS open) - protects against fault conditions without external current-limiting components. |
Pinout & Package
VSSOP-8 package (3.00 mm × 3.00 mm), thermally enhanced for stable operation in compact industrial PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | 5.3–5.5 V supply; dropout voltage ≤300 mV at 3 mA load ensures margin with LDO-fed rails. |
| EN | Digital enable input | Active-high logic; 1.6 V threshold allows direct microcontroller GPIO control with fast turn-on settling. |
| SS | Current limit programming | Resistor-to-ground sets short-circuit current; open = 10.5 mA default limit. |
| FILT | Stability capacitor node | Requires ≥1 µF ceramic capacitor to GND; suppresses high-frequency instability from ADC switching transients. |
| OUT_S | Sense input to buffer | Feedback path for output regulation; connects to ADC REF pin to close local loop and minimize droop. |
| OUT_F | Buffer output force | Delivers low-impedance drive; used with OUT_S in Kelvin connection to reject trace resistance errors. |
| GND_F | Force ground | Return path for OUT_F; separates high-current return from sensitive sense path. |
| GND_S | Sense ground | Return path for OUT_S and internal reference; minimizes ground bounce impact on accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated ADC drive buffer | Eliminates need for external op-amp; reduces BOM count and layout area in precision DAQ modules. |
| First-sample 18-bit precision | Guaranteed <1 LSB droop at 1 MSPS with ADS8881 - enables event-triggered and burst-mode acquisition without calibration delay. |
| Separate force/sense outputs & grounds | Supports true Kelvin connection to ADC REF pin, rejecting up to 100 mΩ PCB trace resistance without accuracy loss. |
| Programmable short-circuit current | Configurable via external resistor on SS pin - allows optimization for system-level fault protection without redesign. |
| Low 1/f noise (3 µVPP/V) | Minimizes low-frequency distortion in DC-coupled medical sensors and strain-gauge interfaces. |
Applications
| ATE Testers and Oscilloscopes | Test and Measurement Equipment |
|---|---|
Use Scenario: High-speed automated test equipment capturing transient waveforms at 1 MSPS using ADS8881 ADCs. IC Role / Device Role / Timing Role: Supplies ultra-stable 5-V reference to ADC REF pin during first conversion cycle, eliminating droop-induced code errors. Use Value: Enables guaranteed 18-bit first-sample accuracy without post-acquisition correction, reducing test time per unit. | Use Scenario: Portable handheld multimeters and calibrators requiring stable DC reference over wide temperature range. IC Role / Device Role / Timing Role: Precision voltage source with 8 ppm/°C drift and ±0.05% initial accuracy for metrology-grade measurements. Use Value: Maintains calibration integrity across –40°C to +125°C without field recalibration, meeting IEC 61000-4-2 compliance margins. |
| Analog Input Modules for PLCs | Medical Equipment |
Use Scenario: Industrial PLC analog input cards digitizing 4–20 mA sensor signals with 16+ bit resolution. IC Role / Device Role / Timing Role: Reference for multi-channel SAR ADCs sharing common REF bus; handles dynamic load switching between channels. Use Value: Integrated buffer prevents cross-talk and droop when multiple ADCs switch REF load simultaneously. | Use Scenario: Patient monitoring devices (ECG, EEG) acquiring low-amplitude bio-signals with high SNR. IC Role / Device Role / Timing Role: Low-noise 5-V reference for delta-sigma ADCs like ADS127L01, enabling 106 dB SNR and –120 dB THD. Use Value: 3 µVPP/V 1/f noise ensures clean baseline in sub-100 nV bio-potential measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF6145IDGKT | 4.5-V output, same 8 ppm/°C drift, ±3.5 mA drive, 5.5-V max VIN | Used where system ADC full-scale is 4.5 V (e.g., ADS8864), not 5 V | Select REF6145IDGKT only when matching 4.5-V ADC reference voltage requirement; not drop-in for 5-V systems. |
| REF6205IDGKT | 5-V output, 3 ppm/°C drift (0°C to 70°C), higher cost, no integrated buffer | Used in commercial-temperature applications demanding tighter drift but accepting external buffer design | Choose REF6205IDGKT only if 3 ppm/°C drift is mandatory and board space permits external THS4521 buffer. |
Compared with REF6145IDGKT and REF6205IDGKT, the REF6150IDGKT uniquely combines 5-V output, integrated buffer, and industrial-temp 8 ppm/°C drift in one VSSOP-8 package-enabling simpler, smaller, and more robust 18-bit DAQ designs without performance trade-offs.
Availability
REF6150IDGKT is available at Aetrix Electronics and suitable for precision data acquisition systems, automated test equipment, and medical instrumentation requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for REF6150IDGKT 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 data converter ecosystems.
The REF61xx product line was designed specifically to solve dynamic reference droop in high-resolution SAR and delta-sigma ADC systems, targeting 18-bit+ burst-mode data acquisition in industrial, test, and medical applications.
FAQ
What is the maximum input voltage for REF6150IDGKT?
The REF6150IDGKT supports a maximum input voltage of 5.5 V. Its recommended operating condition specifies VIN between 5.3 V and 5.5 V for optimal performance across temperature. Exceeding 5.5 V violates absolute maximum ratings and risks permanent damage. The device's dropout voltage remains ≤300 mV at 3 mA load, ensuring reliable operation even with marginal supply headroom.
Does REF6150IDGKT require an external buffer when driving ADS8881?
No, REF6150IDGKT does not require an external buffer when driving the ADS8881. Its integrated low-output-impedance buffer (<50 mΩ, DC–200 kHz) is explicitly verified to deliver first-sample precision to 18 bits at 1 MSPS with ADS8881, as confirmed in TI's SBOS747B datasheet Figure 32–34 and Feature Description section.
How is the short-circuit current limit set on REF6150IDGKT?
The short-circuit current limit on REF6150IDGKT is set via the SS pin: connecting a resistor from SS to GND configures the limit, while leaving SS open defaults to 10.5 mA. The datasheet provides a formula relating resistor value to current limit, enabling precise fault-current tailoring for system-level safety without additional discrete components.
What capacitor values are required for stable operation of REF6150IDGKT?
REF6150IDGKT requires two capacitors: a ≥1 µF ceramic capacitor between FILT and GND for internal stability, and a 22–47 µF bulk capacitor (CL) between OUT_F and GND to suppress reference droop. The datasheet specifies CL = 47 µF for minimum noise (5 µVRMS) and CL = 22 µF as minimum stable value.
Can REF6150IDGKT operate over the full industrial temperature range?
Yes, REF6150IDGKT is fully specified from –40°C to +125°C. Its 8 ppm/°C maximum temperature drift, ±0.05% initial accuracy, and load regulation (50 ppm/mA max) are all guaranteed across this range, making it suitable for harsh-environment applications such as motor drives, industrial PLCs, and automotive test gear.
REF6150IDGKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 3 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 8ppm/°C
- Noise - 0.1Hz to 10Hz:
- 3µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 5.3V ~ 5.5V
- Current - Supply:
- 1.15mA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
REF6150IDGKT FAQ
1.How can I place an order for REF6150IDGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for REF6150IDGKT 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 REF6150IDGKT reliable?
The price and inventory of REF6150IDGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF6150IDGKT is usually 5 days.
3.What payment methods are accepted for REF6150IDGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF6150IDGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF6150IDGKT?
REF6150IDGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF6150IDGKT 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 REF6150IDGKT?
For technical support, including REF6150IDGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF6150IDGKT requirements.
6.How does Aetrix verify that REF6150IDGKT is sourced from the original manufacturer or authorized distributors?
All REF6150IDGKT 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 REF6150IDGKT meets industry standards.
7.What is the process for return or replacement of REF6150IDGKT?
All REF6150IDGKT units undergo pre-shipment inspection (PSI). If there is an issue with REF6150IDGKT, 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 REF6150IDGKT part is unused and in its original packaging.
Return procedure for REF6150IDGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
REF6150IDGKT Tags
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