My Inquiry
My Account
Texas Instruments REF6130IDGKT
- Part No.:
- REF6130IDGKT
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
REF6130IDGKT.pdf
- Description:
- IC VREF SERIES 0.05% 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:209
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
REF6130IDGKT from Texas Instruments is a high-precision, 3.0 V voltage reference IC with integrated ADC drive buffer, ±0.05% initial accuracy, 8 ppm/°C max temperature drift over –40°C to +125°C, and <50 mΩ output impedance (DC–200 kHz), designed to directly drive the REF pin of precision SAR and delta-sigma ADCs such as ADS8881 in burst-mode data acquisition systems.
For engineers reviewing the REF6130IDGKT datasheet, REF6130IDGKT pinout, REF6130IDGKT application, or REF6130IDGKT equivalent, key selection criteria include first-sample 18-bit precision under dynamic load, low 5 µVRMS noise with 47 µF capacitor, programmable short-circuit current, and verified compatibility with ADS88xx and ADS127xx ADC families.
Technical Context
The REF6130IDGKT integrates a bandgap voltage reference core with a high-bandwidth, low-output-impedance buffer optimized for transient-heavy ADC reference pin loads. Its dual-ground architecture (GND_F/GND_S) separates force and sense paths to minimize PCB layout-induced errors during high-current switching events at the REF pin.
It employs a dedicated FILT pin for external capacitor stabilization (≥1 µF), SS pin for programmable short-circuit current limiting, and operates with supply input as low as VOUT + 0.25 V (3.25 V min), enabling use in low-headroom 3.3 V systems while maintaining 1 LSB droop performance with ADS8881 at 1 MSPS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V nominal; enables direct interface with 3 V ADC reference inputs without level-shifting. |
| Initial Accuracy | ±0.05%; reduces system calibration burden and supports 16-bit+ absolute accuracy without trimming. |
| Temp Drift | 8 ppm/°C max (–40°C to +125°C); ensures ≤±1 LSB error over full industrial temperature range for 18-bit systems. |
| Output Impedance | <50 mΩ (DC–200 kHz); sustains stable REF voltage during fast capacitor-switching transients in SAR ADCs. |
| Total Noise | 5 µVRMS (with 47 µF CL); contributes <0.3 LSB noise floor for 18-bit (19.07 µV LSB) precision. |
| Supply Current | 0.82–0.90 mA active; enables low-power portable and battery-backed precision DAQ designs. |
| Shutdown Current | 1–3 µA; allows power gating between acquisition bursts without reference re-stabilization delay. |
Pinout & Package
VSSOP-8 package (3.00 mm × 3.00 mm), thermally enhanced for stable operation in compact industrial layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 3.25 V to 5.5 V supply; dropout as low as 50 mV at 4 mA load enables efficient 3.3 V rail operation. |
| EN | Digital enable input | Active-high logic control; 1.6 V threshold ensures reliable activation from 3.3 V GPIO; 100 nA input leakage minimizes control-line loading. |
| SS | Short-circuit current limit set | Resistor-programmable output current limit; open-circuit default = 10.5 mA, protecting downstream ADC REF pins during fault conditions. |
| FILT | Filter capacitor connection | Connect ≥1 µF capacitor to GND_F to stabilize internal regulator loop; critical for noise suppression and transient response. |
| OUT_S | Voltage sense input | High-impedance feedback node; connects to ADC REF pin to close precision regulation loop independent of trace IR drop. |
| OUT_F | Voltage force output | Low-Z buffered output; delivers ±4 mA to drive dynamic ADC reference capacitance without droop exceeding 1 LSB. |
| GND_F | Force ground | Return path for OUT_F current; must be connected to low-impedance ground plane near load to minimize sensing error. |
| GND_S | Sense ground | Reference ground for OUT_S feedback; routed separately to ADC ground to reject common-mode noise and layout-induced offsets. |
Key Features
| Feature | Design Value |
|---|---|
| First-sample 18-bit precision | Verified with ADS8881 at 1 MSPS: reference droop <1 LSB (19.07 µV) during initial conversion, enabling burst-mode and event-triggered DAQ. |
| Integrated ADC drive buffer | Eliminates need for external op-amp; reduces BOM count, board area, and layout complexity while preserving SNR >100 dB and THD <–125 dB. |
| Low 1/f noise | 3 µVPP/V (0.1 Hz–10 Hz); minimizes low-frequency drift in DC-coupled sensor front-ends and precision weigh-scale applications. |
| Programmable short-circuit protection | SS pin resistor sets current limit from ~2 mA to 10.5 mA; prevents latch-up or damage when driving capacitive ADC REF pins during startup or fault. |
| Stable with wide capacitive load | Supports 10–47 µF output capacitors; accommodates standard ceramic or tantalum bulk decoupling without oscillation or ringing. |
Applications
| ATE Testers and Oscilloscopes | Test and Measurement Equipment |
|---|---|
Use Scenario: High-speed automated test equipment capturing transient waveforms at multi-MSPS rates using SAR ADCs like ADS8881. IC Role / Device Role / Timing Role: Supplies ultra-stable 3.0 V reference to ADC REF pin during rapid successive conversions with minimal droop. Use Value: Ensures first-sample accuracy meets 18-bit specification (<1 LSB error), eliminating post-acquisition correction and improving test throughput. |
Use Scenario: Portable multimeters and handheld analyzers requiring calibrated DC voltage measurement across temperature extremes. IC Role / Device Role / Timing Role: Provides primary voltage reference for internal DACs and ADCs, with low thermal hysteresis (≤33 ppm) and long-term stability (80 ppm/1000h). Use Value: Maintains calibration integrity over field use and multiple thermal cycles without recalibration, reducing service cost and downtime. |
| Analog Input Modules for PLCs | Medical Equipment |
Use Scenario: Industrial PLC analog input cards digitizing 4–20 mA or ±10 V sensor signals with 16–18 bit resolution. IC Role / Device Role / Timing Role: Serves as isolated, low-noise reference for sigma-delta ADCs (e.g., ADS127L01) in noisy factory environments. Use Value: Delivers 106 dB SNR and –120 dB THD even with 47 µF local capacitance, rejecting EMI and ensuring compliance with IEC 61000-4 immunity standards. |
Use Scenario: Patient monitoring devices (e.g., ECG, EEG amplifiers) requiring ultra-low-noise, drift-free DC bias references. IC Role / Device Role / Timing Role: Generates clean 3.0 V reference for precision instrumentation amplifiers and anti-aliasing filters in signal chain front-end. Use Value: 5 µVRMS total noise and 3 µVPP/V 1/f noise prevent baseline wander and preserve microvolt-level biological signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF6133IDGKT | 3.3 V output; identical accuracy (±0.05%), drift (8 ppm/°C), and buffer specs; requires no circuit redesign if system uses 3.3 V ADCs. | Used where ADC REF input is 3.3 V (e.g., many mixed-signal MCUs), avoiding resistive divider losses and noise. | Select REF6133IDGKT when matching 3.3 V domain logic and ADC supply rails to maximize PSRR and minimize headroom loss. |
| REF5030AIDR | 3.0 V output; higher initial accuracy (±0.02%), lower drift (3 ppm/°C), but no integrated buffer; requires external op-amp for ADC drive. | Preferred in ultra-high-precision lab-grade instruments where 0.02% accuracy justifies added BOM and layout complexity. | Choose REF5030AIDR only when buffer integration is unnecessary and sub-ppm stability outweighs cost, size, and design effort trade-offs. |
Compared with REF6130IDGKT, REF6133IDGKT offers identical performance at 3.3 V for seamless domain alignment, while REF5030AIDR trades integrated drive capability for superior raw reference specs-making REF6130IDGKT optimal for space-constrained, high-throughput industrial DAQ where buffer integration delivers measurable system-level simplification.
Availability
REF6130IDGKT is available at Aetrix Electronics and suitable for precision data acquisition systems, automated test equipment, and industrial PLC analog input modules requiring stable component supply with guaranteed long-term manufacturability.
Supply support for REF6130IDGKT 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 family was engineered specifically to solve dynamic reference droop in high-speed precision DAQ, targeting seamless integration with TI's ADS88xx and ADS127xx ADC portfolios for turnkey system-level performance.
FAQ
What is the maximum operating temperature range for the REF6130IDGKT?
The REF6130IDGKT is specified for continuous operation from –40°C to +125°C ambient temperature. Its 8 ppm/°C max temperature drift and tested thermal hysteresis (≤33 ppm after one cycle) ensure reliable 18-bit accuracy across this full industrial range, making it suitable for under-hood automotive sensors and factory-floor PLC modules.
Does the REF6130IDGKT require an external buffer when driving the REF pin of ADS8881?
No, the REF6130IDGKT does not require an external buffer when driving the REF pin of ADS8881. Its integrated low-output-impedance buffer (<50 mΩ up to 200 kHz) is explicitly verified to maintain <1 LSB droop during the first sample at 1 MSPS, eliminating the need for additional op-amps and associated layout complexity.
How is the short-circuit current limit configured on the REF6130IDGKT?
The short-circuit current limit on the REF6130IDGKT is set via the SS pin: connecting a resistor between SS and GND programs the limit between ~2 mA and 10.5 mA. Leaving SS open yields the default 10.5 mA limit. This feature protects both the REF6130IDGKT and the connected ADC's REF pin during overcurrent events or startup transients.
What capacitor value is required on the FILT pin of the REF6130IDGKT?
A minimum 1 µF capacitor must be placed between the FILT pin and GND_F for stable operation. TI recommends using a high-quality ceramic capacitor with low ESR; typical designs use 1–10 µF. This capacitor stabilizes the internal regulator loop and is essential for achieving the specified noise and transient performance.
Can the REF6130IDGKT operate from a 3.3 V supply rail?
Yes, the REF6130IDGKT can operate from a 3.3 V supply rail. Its minimum input voltage is VOUT + 0.25 V = 3.25 V, leaving 50 mV headroom. At 4 mA load, dropout is typically 250 mV, well within 3.3 V operation. This enables direct use in 3.3 V systems without LDO pre-regulation.
REF6130IDGKT 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):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 4 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 8ppm/°C
- Noise - 0.1Hz to 10Hz:
- 3µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 3.25V ~ 5.5V
- Current - Supply:
- 1.1mA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
REF6130IDGKT FAQ
1.How can I place an order for REF6130IDGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for REF6130IDGKT 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 REF6130IDGKT reliable?
The price and inventory of REF6130IDGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF6130IDGKT is usually 5 days.
3.What payment methods are accepted for REF6130IDGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF6130IDGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF6130IDGKT?
REF6130IDGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF6130IDGKT 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 REF6130IDGKT?
For technical support, including REF6130IDGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF6130IDGKT requirements.
6.How does Aetrix verify that REF6130IDGKT is sourced from the original manufacturer or authorized distributors?
All REF6130IDGKT 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 REF6130IDGKT meets industry standards.
7.What is the process for return or replacement of REF6130IDGKT?
All REF6130IDGKT units undergo pre-shipment inspection (PSI). If there is an issue with REF6130IDGKT, 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 REF6130IDGKT part is unused and in its original packaging.
Return procedure for REF6130IDGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
REF6130IDGKT 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…
