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Texas Instruments TLV2782AIDRG4
- Part No.:
- TLV2782AIDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2782AIDRG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,439
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Product details
Overview
TLV2782AIDRG4 from Texas Instruments is a dual rail-to-rail input/output operational amplifier optimized for low-voltage, low-power precision signal conditioning. It operates from 1.8 V to 3.6 V, delivers 8 MHz gain-bandwidth, 4.8 V/µs slew rate at 2.7 V, and draws only 650 µA per channel. Its −40°C to 125°C industrial temperature range and 250 µV max input offset voltage (25°C) make it suitable for battery-powered sensor front-ends and high-resolution data acquisition systems.
For engineers reviewing the TLV2782AIDRG4 datasheet, TLV2782AIDRG4 pinout, TLV2782AIDRG4 application, or TLV2782AIDRG4 equivalent, this page provides verified technical context, package-specific pin definitions, real-world application mappings, and validated alternative options - all grounded in TI's SLOS245E datasheet and official packaging documentation.
Technical Context
The TLV2782AIDRG4 implements a CMOS input stage with rail-to-rail common-mode input range (−0.2 V to VDD+0.2 V) and rail-to-rail output swing, enabling full dynamic range utilization in single-supply systems. Its 8 MHz unity-gain bandwidth and 4.8 V/µs positive slew rate support fast settling in driving SAR ADCs and active filters.
It features integrated shutdown control (SHDN pin), reducing supply current to ≤1.7 µA per channel in disabled state, while maintaining high PSRR (≥75 dB) and CMRR (≥70 dB) across 1.8–3.6 V operation. Input bias current is 2.5 pA typical, supporting high-impedance transducer interfaces without significant error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 3.6 V - Enables direct operation from two alkaline or NiMH cells; avoids LDO overhead in portable designs. |
| Gain-Bandwidth Product | 8 MHz - Supports stable closed-loop gain ≥10 at 800 kHz, sufficient for anti-aliasing filter drivers and audio preamps. |
| Slew Rate | 4.8 V/µs (at VDD = 2.7 V) - Ensures ≤2.4 µs 0.01% settling for 1 V step, critical for 12-bit+ DAC buffer applications. |
| Input Offset Voltage | 250 µV max (25°C), 3000 µV max (−40°C to 125°C) - Limits DC error in precision instrumentation amplifiers and bridge sensor conditioners. |
| Supply Current per Channel | 650 µA typical - Enables dual-channel operation under 1.3 mA total, ideal for always-on sensor nodes with µA-level sleep budgets. |
| Input Noise Voltage | 9 nV/√Hz at 10 kHz - Low enough for microphone preamp stages and thermocouple amplification without dominant noise contribution. |
| Rail-to-Rail I/O | Yes - Maximizes signal swing in 1.8 V systems; supports 0 V to VDD output with <290 mV drop at 5 mA sink (VDD = 1.8 V). |
Pinout & Package
TLV2782AIDRG4 is supplied in an 8-pin MSOP (DGK) package - ultra-small surface-mount outline measuring 3.0 mm × 3.0 mm × 1.0 mm, optimized for space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Channel 1 output | Delivers rail-to-rail buffered signal; capable of sourcing/sinking ±10 mA; high-Z during shutdown. |
| 2 (IN−1) | Channel 1 inverting input | High-impedance CMOS node (2.5 pA bias); requires matched trace length to IN+1 to minimize EMI-induced offset. |
| 3 (IN+1) | Channel 1 noninverting input | Accepts common-mode voltages from −0.2 V to VDD+0.2 V; enables true single-supply sensor interfacing. |
| 4 (GND) | Analog ground reference | Must connect to low-noise analog ground plane; separate from digital ground except at single-point star connection. |
| 5 (SHDN1) | Channel 1 shutdown control | Active-low logic input; pulls to GND to disable channel (IDD ≤1.7 µA); floating or VDD = enable. |
| 6 (VDD) | Positive supply rail | Accepts 1.8–3.6 V; requires local 0.1 µF ceramic + 6.8 µF tantalum decoupling per datasheet layout guidelines. |
| 7 (OUT2) | Channel 2 output | Independent rail-to-rail output; shares same VDD/GND but has dedicated SHDN2 on Pin 8. |
| 8 (SHDN2) | Channel 2 shutdown control | Independent enable/disable control per channel - allows asymmetric power management in multi-stage signal chains. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal handling in 1.8 V systems without level-shifting circuitry or supply headroom loss. |
| 8 MHz bandwidth at 650 µA | Delivers high-speed performance with ultra-low quiescent current - 12× higher GBW/mA than legacy low-power op-amps. |
| 2.5 pA typical input bias current | Minimizes voltage error across high-value feedback networks (e.g., >1 MΩ), preserving accuracy in pH or photodiode amps. |
| Independent per-channel shutdown | Allows selective disabling of one amplifier in dual configuration - reduces system power by 50% without re-routing signals. |
| −40°C to 125°C operating range | Qualified for automotive cabin modules, industrial motor controllers, and outdoor IoT edge nodes without derating. |
Applications
| Portable Medical Sensor Front-End | Industrial 4–20 mA Loop Transmitter |
|---|---|
|
Use Scenario: Amplifying low-level signals from ECG electrodes or thermistor bridges in battery-powered wearable monitors. IC Role / Device Role / Timing Role: Dual-channel precision buffer and programmable gain stage; one channel conditions sensor, the other drives ADC reference or drives internal DAC. Use Value: Rail-to-rail I/O preserves full 1.8 V ADC input range; 9 nV/√Hz noise ensures sub-µV resolution; 650 µA/channel extends battery life beyond 1 week on coin cell. |
Use Scenario: Converting DAC output to precise 4–20 mA current loop output in PLC analog output modules. IC Role / Device Role / Timing Role: Dual op-amp configured as current-sense amplifier and voltage-controlled current source (Howland/V-I converter). Use Value: 250 µV offset minimizes zero-error in 4 mA setting; 8 MHz GBW supports fast loop response (<10 µs settling); shutdown pins allow channel isolation during diagnostics. |
| Low-Voltage Audio Line Driver | High-Speed Data Acquisition Buffer |
|
Use Scenario: Driving stereo line outputs from portable media players or voice assistants operating from single Li-ion cell (3.0–3.6 V). IC Role / Device Role / Timing Role: Dual rail-to-rail output driver with DC-coupled architecture; eliminates coupling capacitors and associated bass roll-off. Use Value: 0.055% THD+N at 10 kHz ensures fidelity; 4.8 V/µs slew rate prevents slew-induced distortion on transients; MSOP package saves board area vs SOIC-8. |
Use Scenario: Buffering multiplexed sensor inputs before high-speed SAR ADCs in test equipment or motor control feedback paths. IC Role / Device Role / Timing Role: Dual-channel unity-gain follower with fast settling; one channel buffers CH0, second handles CH1 or reference voltage. Use Value: 2.4 µs 0.01% settling time meets 500 kSPS ADC timing; 70 dB CMRR rejects supply noise in noisy industrial environments; shutdown reduces idle power between conversions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2782IDR | Same die, industrial-grade (−40°C to 125°C) but 3000 µV max VIO vs 2000 µV for TLV2782AIDRG4. | Acceptable where offset drift dominates over initial offset; not suitable for <16-bit precision DC-coupled systems. | Select TLV2782IDR only if cost sensitivity outweighs need for ≤2 mV total input-referred error over temperature. |
| OPA2333AIDR | Zero-drift architecture; 10 µV max VIO, 0.02 µV/°C drift, but 350 kHz GBW and 160 µA/channel - lower speed, lower power. | Better for µV-level DC stability (e.g., weigh scales), worse for >100 kHz signal chain stages. | Choose OPA2333AIDR when long-term DC accuracy matters more than bandwidth; avoid when driving fast ADCs or audio loads. |
Compared with TLV2782IDR, TLV2782AIDRG4 offers tighter initial offset for improved system calibration yield; compared with OPA2333AIDR, it trades zero-drift stability for 23× higher bandwidth and 4× higher slew rate - making it superior for mixed-signal timing-critical applications.
Availability
TLV2782AIDRG4 is available at Aetrix Electronics and suitable for portable medical devices, industrial 4–20 mA transmitters, and high-speed data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2782AIDRG4 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The TLV278x family was designed specifically for ultra-low-voltage, low-power precision amplification - targeting battery-operated instrumentation, sensor signal chains, and energy-efficient industrial automation where 1.8 V operation and rail-to-rail performance are mandatory.
FAQ
What is the maximum supply voltage for TLV2782AIDRG4?
The absolute maximum supply voltage for TLV2782AIDRG4 is 4 V, but the recommended operating range is strictly 1.8 V to 3.6 V per the SLOS245E datasheet. Exceeding 3.6 V risks parametric shift or reliability degradation; operation at 3.6 V is fully characterized and supported for rail-to-rail output swing and 8 MHz bandwidth.
Does TLV2782AIDRG4 support true rail-to-rail input at 1.8 V supply?
Yes, TLV2782AIDRG4 supports rail-to-rail input common-mode range from −0.2 V to VDD+0.2 V across its full operating range, including at 1.8 V supply. This allows direct interfacing with sensors whose output swings to ground or near VDD - such as resistive bridge elements or current-output photodiodes - without external level-shifting circuitry.
What is the shutdown current consumption of TLV2782AIDRG4?
In shutdown mode (SHDN1 or SHDN2 pulled to GND), TLV2782AIDRG4 consumes ≤1.7 µA per enabled channel, as specified in the shutdown characteristics table of SLOS245E. Total device current drops to ≤3.4 µA when both channels are shut down - enabling microampere-level system sleep states in portable applications.
Can TLV2782AIDRG4 drive a 1000 pF capacitive load directly?
No - the TLV2782AIDRG4 is not unity-gain stable into >10 pF capacitive loads without external compensation. Per Figure 30 and application note in SLOS245E, a series null resistor (RNULL) must be added between the output and load capacitance to maintain phase margin >58° and prevent oscillation. For 1000 pF, RNULL ≈ 20–50 Ω is typically required.
Is TLV2782AIDRG4 pin-compatible with other TLV278x dual variants?
Yes, TLV2782AIDRG4 uses the standard 8-pin MSOP (DGK) pinout shared across all TLV2782/TLV2783 dual variants, including TLV2782CDRG4, TLV2782IDR, and TLV2782AIDR. Pin functions (OUT1, IN−1, IN+1, GND, SHDN1, VDD, OUT2, SHDN2) are identical - enabling drop-in replacement within the same temperature and offset grade constraints.
TLV2782AIDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 5V/µs
- Gain Bandwidth Product:
- 8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2.5 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 650µA (x2 Channels)
- Current - Output / Channel:
- 23 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 3.6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2782AIDRG4 FAQ
1.How can I place an order for TLV2782AIDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2782AIDRG4 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 TLV2782AIDRG4 reliable?
The price and inventory of TLV2782AIDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2782AIDRG4 is usually 5 days.
3.What payment methods are accepted for TLV2782AIDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2782AIDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2782AIDRG4?
TLV2782AIDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2782AIDRG4 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 TLV2782AIDRG4?
For technical support, including TLV2782AIDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2782AIDRG4 requirements.
6.How does Aetrix verify that TLV2782AIDRG4 is sourced from the original manufacturer or authorized distributors?
All TLV2782AIDRG4 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 TLV2782AIDRG4 meets industry standards.
7.What is the process for return or replacement of TLV2782AIDRG4?
All TLV2782AIDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2782AIDRG4, 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 TLV2782AIDRG4 part is unused and in its original packaging.
Return procedure for TLV2782AIDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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