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Texas Instruments TLV2782IDGKR
- Part No.:
- TLV2782IDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV2782IDGKR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
TLV2782IDGKR from Texas Instruments is a dual rail-to-rail input/output operational amplifier optimized for low-voltage, high-speed signal conditioning in battery-powered systems. 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 - enabling precision amplification in space-constrained industrial sensor interfaces and portable data acquisition.
For engineers reviewing the TLV2782IDGKR datasheet, TLV2782IDGKR pinout, TLV2782IDGKR application, or TLV2782IDGKR equivalent, this page provides verified electrical specifications, MSOP-8 package layout, shutdown behavior, noise performance (9 nV/√Hz @ 10 kHz), and validated alternatives for low-voltage analog front-end design.
Technical Context
The TLV2782IDGKR implements a CMOS input stage with rail-to-rail input common-mode range (−0.2 V to VDD+0.2 V) and rail-to-rail output swing, supporting full-scale signal handling across its 1.8–3.6 V supply. Its 8 MHz unity-gain bandwidth and 58° phase margin at 2 kΩ/25 pF load ensure stable operation in closed-loop configurations up to 100 kHz with minimal peaking.
It integrates independent shutdown control per amplifier (SHDN pins 5 and 12), reducing quiescent current to ≤1.7 µA per channel in disabled state. Input bias current is 2.5 pA typical, enabling high-impedance source interfacing without significant offset error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 3.6 V - supports single-cell Li-ion (3.0–3.6 V) and two NiMH (2.4 V) or LiFePO₄ (3.2 V) batteries without regulation. |
| Gain-Bandwidth Product | 8 MHz - enables stable unity-gain buffers up to 100 kHz and closed-loop gain of 10 at ~800 kHz in sensor signal chains. |
| Slew Rate | 4.8 V/µs at VDD = 2.7 V - supports 1 VPP signals up to ~760 kHz without slew-induced distortion in active filters. |
| Input Noise Voltage | 9 nV/√Hz at 10 kHz - ensures <0.5 µV RMS integrated noise in 20 kHz audio band, critical for high-resolution ADC drivers. |
| Input Offset Voltage | 3000 µV max (I-grade, −40°C to 125°C) - defines worst-case DC error in precision instrumentation amplifiers using external gain resistors. |
| Shutdown Current | ≤1700 nA per channel - reduces total system standby power to <3.5 µA for dual-channel configuration in always-on sensors. |
| Common-Mode Range | −0.2 V to VDD+0.2 V - allows direct interface to transducers biased below ground or above supply (e.g., bridge sensors). |
Pinout & Package
TLV2782IDGKR is housed in an 8-pin MSOP (DGK) package - 3.0 mm × 3.0 mm footprint, 0.65 mm pitch, 1.1 mm height - optimized for high-density PCB layouts in portable and industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Delivers rail-to-rail voltage swing; drives 2 kΩ loads with ≤290 mV drop at 5 mA sink. |
| 2 (IN− A) | Inverting input A | High-impedance node (1000 GΩ differential Rin); sensitive to layout parasitics - keep trace short and guard. |
| 3 (IN+ A) | Non-inverting input A | Accepts common-mode voltages down to −0.2 V; enables level-shifting and single-supply transducer biasing. |
| 4 (GND) | Analog ground reference | Shared return for both amplifiers; must connect to low-impedance ground plane beneath device. |
| 5 (SHDN A) | Amplifier A shutdown control | Logic-low (≤0.6 V) disables A channel; floating or ≥2 V enables - no pull-up required but recommended for noise immunity. |
| 6 (VDD) | Positive supply | Accepts 1.8–3.6 V; requires local 0.1 µF ceramic + 6.8 µF tantalum decoupling within 0.1 inch. |
| 7 (OUT B) | Amplifier B output | Independent rail-to-rail output; identical drive capability to Pin 1 - supports dual-path signal processing. |
| 8 (IN− B) | Inverting input B | Electrically isolated from A channel; enables simultaneous dual-sensor conditioning without crosstalk (−120 dB @ 100 kHz). |
| 9 (IN+ B) | Non-inverting input B | Matches Pin 3 specs; supports independent biasing for differential sensor pairs or multi-stage filtering. |
| 10 (SHDN B) | Amplifier B shutdown control | Independent logic control for B channel; allows asymmetric power management (e.g., A active, B in shutdown). |
| 11 (NC) | No internal connection | Not bonded - leave unconnected; avoid routing traces or vias under this pad to prevent EMI coupling. |
| 12 (GND) | Second ground terminal | Internal bond wire to same die ground as Pin 4; improves thermal dissipation and reduces ground bounce in high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization from 0 V to VDD in single-supply systems - eliminates level-shifting ICs in 1.8 V microcontroller interfaces. |
| 8 MHz GBW at 650 µA | Delivers 10× higher bandwidth per µA than legacy low-power op-amps - critical for anti-aliasing filters preceding 1 MSPS SAR ADCs. |
| 9 nV/√Hz input noise | Ensures <0.3 LSB error in 16-bit, 100 kSPS ADC systems with 10 kΩ source impedance - preserves effective resolution. |
| Independent shutdown | Per-amplifier enable/disable allows dynamic power scaling - e.g., disable channel B during sleep mode while keeping A active for wake-on-event detection. |
| −40°C to 125°C operation | Qualified for automotive under-hood and industrial motor-control environments without derating - supports extended temperature calibration stability. |
| MSOP-8 package | 3.0 × 3.0 mm footprint saves >60% board area vs SOIC-8 - enables compact wearable sensor nodes and modular PLC I/O modules. |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Instrumentation |
|---|---|
|
Use Scenario: Amplifying low-level outputs from strain gauges, RTDs, or thermopiles in programmable logic controllers and condition monitoring systems. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end with matched gain paths and independent shutdown for channel multiplexing. Use Value: Rail-to-rail I/O preserves full 16-bit ADC range; 8 MHz bandwidth supports fast step-response in closed-loop pressure control (<10 µs settling). |
Use Scenario: Biopotential signal amplification (ECG, EEG) in handheld diagnostic devices powered by coin-cell or rechargeable batteries. IC Role / Device Role / Timing Role: Low-noise, low-power dual op-amp for AC-coupled gain stages and right-leg drive circuitry. Use Value: 9 nV/√Hz noise ensures <5 µVpp input-referred noise in 0.05–150 Hz band; 650 µA/channel extends battery life to >100 hours on 200 mAh cell. |
| Automotive Cabin Air Quality Sensors | Smart Energy Meter Analog Front-End |
|
Use Scenario: Signal conditioning for NDIR CO₂ and VOC sensors in HVAC control modules operating across −40°C to 125°C ambient. IC Role / Device Role / Timing Role: Dual amplifier for sensor excitation and differential measurement, leveraging extended temperature grade and rail-to-rail inputs. Use Value: Guaranteed 3000 µV VIO max over full temp range minimizes calibration drift; shutdown mode cuts idle current to <3.5 µA for always-on air quality monitoring. |
Use Scenario: Isolated current/voltage sensing and anti-aliasing filtering in Class 0.2 smart meters compliant with IEC 62053. IC Role / Device Role / Timing Role: Dual op-amp implementing precision current shunt amplifier and 2-pole Sallen-Key filter before metrology ADC. Use Value: 8 MHz GBW supports 50/60 Hz harmonic analysis up to 21st order; 70 dB CMRR at 50 Hz rejects magnetic field interference from nearby power lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2782CDGKR | Same silicon, commercial grade (0°C to 70°C) - 3000 µV max VIO at 25°C vs 3000 µV over −40°C to 125°C for TLV2782IDGKR. | Lacks extended temperature qualification - unsuitable for under-hood automotive or outdoor industrial deployments. | Select when cost sensitivity outweighs temperature robustness and ambient stays within 0–70°C. |
| OPA2333AIDGKR | Zero-drift architecture: 0.02 µV/°C drift vs 8 µV/°C for TLV2782IDGKR; 17 µV max VIO over temp vs 3000 µV; 350 kHz GBW vs 8 MHz. | Superior DC precision but lower bandwidth - ideal for weigh scales or pH meters, not high-speed data acquisition. | Choose for µV-level DC accuracy where speed <500 kHz suffices; avoid for ADC driver or active filter roles requiring >1 MHz. |
Compared with TLV2782CDGKR, TLV2782IDGKR provides guaranteed performance across −40°C to 125°C with identical speed and noise, making it suitable for harsh environments; compared with OPA2333AIDGKR, it trades ultra-low drift for 23× higher bandwidth and 10× lower cost, prioritizing dynamic signal fidelity over static accuracy.
Availability
TLV2782IDGKR is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical diagnostics, and automotive cabin air quality monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2782IDGKR 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 over 50 years of innovation in precision amplifiers and low-power signal chain solutions.
The TLV278x family was designed specifically for ultra-low-voltage, high-speed analog signal conditioning in battery-operated and energy-conscious industrial systems - emphasizing rail-to-rail operation, sub-1 mA quiescent current, and robust extended-temperature performance.
FAQ
What is the maximum supply voltage for TLV2782IDGKR?
The absolute maximum supply voltage for TLV2782IDGKR is 4 V, but the recommended operating range is strictly 1.8 V to 3.6 V. Exceeding 3.6 V risks parametric degradation and reduced reliability, especially at high temperatures. Operation at 3.6 V delivers optimal slew rate (5 V/µs) and output drive capability while maintaining rail-to-rail swing.
Does TLV2782IDGKR support true rail-to-rail input at 1.8 V supply?
Yes, TLV2782IDGKR supports rail-to-rail input common-mode range from −0.2 V to VDD+0.2 V across its full 1.8–3.6 V supply range. At 1.8 V, this means inputs can swing from −0.2 V to +2.0 V - enabling direct interface with transducers biased below ground or above VDD, such as bridge sensors with center-tap references.
How does the shutdown function operate on TLV2782IDGKR?
TLV2782IDGKR features independent shutdown pins (Pin 5 for Channel A, Pin 10 for Channel B). Driving either pin ≤0.6 V disables the corresponding amplifier, reducing its supply current to ≤1700 nA and placing its output in high-impedance state. Leaving the pin floating or pulling it ≥2 V enables normal operation - no external pull-up is mandatory but recommended for noise immunity.
What is the typical input bias current of TLV2782IDGKR?
The typical input bias current of TLV2782IDGKR is 2.5 pA at 25°C, with a maximum of 300 pA over the full −40°C to 125°C industrial temperature range. This ultra-low bias current minimizes voltage errors when driving high-impedance sources (e.g., piezoelectric sensors or pH electrodes), preserving signal integrity without requiring guard traces or bias compensation networks.
Can TLV2782IDGKR drive a 10 nF capacitive load directly?
No, TLV2782IDGKR is not unity-gain stable into >10 pF capacitive loads without isolation. Driving >10 pF directly causes phase margin reduction and potential oscillation. For 10 nF loads, a series resistor (RNULL) of 10–50 Ω must be placed between the output and load, as specified in TI's SLOS245E datasheet Figure 30, to restore stability and prevent ringing in pulse responses.
TLV2782IDGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-VSSOP
TLV2782IDGKR FAQ
1.How can I place an order for TLV2782IDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2782IDGKR 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 TLV2782IDGKR reliable?
The price and inventory of TLV2782IDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2782IDGKR is usually 5 days.
3.What payment methods are accepted for TLV2782IDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2782IDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2782IDGKR?
TLV2782IDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2782IDGKR 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 TLV2782IDGKR?
For technical support, including TLV2782IDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2782IDGKR requirements.
6.How does Aetrix verify that TLV2782IDGKR is sourced from the original manufacturer or authorized distributors?
All TLV2782IDGKR 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 TLV2782IDGKR meets industry standards.
7.What is the process for return or replacement of TLV2782IDGKR?
All TLV2782IDGKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2782IDGKR, 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 TLV2782IDGKR part is unused and in its original packaging.
Return procedure for TLV2782IDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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