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Texas Instruments TLV2782CDG4
- Part No.:
- TLV2782CDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2782CDG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,521
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Product details
Overview
TLV2782CDG4 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 portable data converters and sensor front-ends.
For engineers reviewing the TLV2782CDG4 datasheet, TLV2782CDG4 pinout, TLV2782CDG4 application, or TLV2782CDG4 equivalent, key selection criteria include its 1.8 V minimum supply, −0.2 V to VDD+0.2 V common-mode input range, 9 nV/√Hz input noise at 10 kHz, and MSOP-8 package compatibility with space-constrained PCB layouts.
Technical Context
The TLV2782CDG4 implements a CMOS input stage with rail-to-rail output swing, supporting true single-supply operation down to 1.8 V while maintaining stability into capacitive loads up to 25 pF. Its internal architecture enables 58° phase margin at unity gain with 2 kΩ load and 25 pF capacitance, ensuring robust small-signal pulse response without external compensation.
It integrates independent shutdown control per channel (pin 5 and pin 6), reducing supply current to 900 nA/channel when disabled. The device supports split-supply operation (±0.9 V to ±1.8 V) and features input bias currents as low as 2.5 pA, making it suitable for high-impedance transducer interfaces and precision instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 3.6 V - enables direct operation from two rechargeable cells or low-noise LDOs in portable designs. |
| Gain-Bandwidth Product | 8 MHz - supports stable closed-loop gain ≥10 at 800 kHz, suitable for anti-aliasing and reconstruction filters. |
| Slew Rate | 4.8 V/µs at VDD = 2.7 V - ensures <2.4 µs 0.01% settling for 1 V step, critical for driving SAR ADC inputs. |
| Input Noise Voltage | 9 nV/√Hz at 10 kHz - preserves SNR in audio and sensor signal chains where bandwidth extends beyond 1 kHz. |
| Common-Mode Input Range | −0.2 V to VDD+0.2 V - allows input signals to swing beyond rails, simplifying level-shifting in mixed-signal systems. |
| Supply Current per Channel | 650 µA - enables dual-channel amplification with <1.3 mA total quiescent draw, extending battery life in always-on monitoring. |
| Shutdown Current | 900 nA per channel - reduces system standby power by >99.9% when channels are disabled via SHDN pins. |
Pinout & Package
TLV2782CDG4 is housed in an 8-pin MSOP (DGK) package with exposed thermal pad, measuring 3.0 mm × 3.0 mm × 1.0 mm - optimized for thermal performance and board area efficiency in compact industrial and medical modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Channel 1 output | Delivers rail-to-rail voltage swing; capable of sourcing/sinking 10 mA into 2 kΩ load. |
| 2 (IN−1) | Channel 1 inverting input | High-impedance CMOS node; requires short trace routing to minimize stray capacitance and oscillation risk. |
| 3 (IN+1) | Channel 1 noninverting input | Accepts signals from −0.2 V to VDD+0.2 V; supports DC-coupled sensor interfaces without level shifters. |
| 4 (GND) | Analog ground reference | Must connect to low-impedance ground plane; separates analog return path from digital or power grounds. |
| 5 (SHDN1) | Channel 1 shutdown control | Logic-high (>2 V) enables amplifier; logic-low (<0.6 V) disables output and reduces IDD to 900 nA. |
| 6 (SHDN2) | Channel 2 shutdown control | Independent enable/disable control per channel - enables dynamic power gating in multi-stage signal chains. |
| 7 (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. |
| 8 (OUT2) | Channel 2 output | Electrically isolated from OUT1; supports dual-path signal processing without crosstalk degradation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization with 1.8 V supplies - eliminates need for level-shifting circuitry in low-voltage data acquisition. |
| 8 MHz GBW at 650 µA | Delivers high-speed amplification with ultra-low power - achieves 12,300 MHz/W efficiency, exceeding most competing rail-to-rail op-amps. |
| 9 nV/√Hz input noise @10 kHz | Preserves signal integrity in microphone preamps and thermocouple amplifiers where noise floor directly impacts resolution. |
| Independent dual shutdown | Allows selective channel disablement - reduces system power by 50% when only one amplifier is active, e.g., in multiplexed sensor arrays. |
| −40°C to 125°C operation | Qualified for automotive under-hood and industrial motor-control environments without derating or thermal management overhead. |
Applications
| Portable Data Acquisition | Medical Sensor Signal Conditioning |
|---|---|
Use Scenario: Battery-powered handheld multimeter acquiring mV-level thermocouple and RTD signals with 16-bit SAR ADC. IC Role / Device Role / Timing Role: Dual-channel precision buffer and gain stage - first channel conditions thermocouple (low-current, high-Z), second drives ADC reference buffer. Use Value: 1.8 V operation extends battery life; rail-to-rail I/O captures full sensor range; 9 nV/√Hz noise maintains >100 dB SNR at 10 kHz. | Use Scenario: Wearable ECG monitor digitizing biopotential signals with 24-bit delta-sigma ADC. IC Role / Device Role / Timing Role: Dual instrumentation amplifier front-end - one channel for lead-I differential pair, second for right-leg drive feedback. Use Value: 2.5 pA input bias current prevents electrode polarization errors; shutdown capability powers down unused channels during sleep mode. |
| Industrial Process Control Loop | Automotive Cabin Air Quality Sensor |
Use Scenario: 4–20 mA loop-powered transmitter converting pressure sensor output to standardized current signal. IC Role / Device Role / Timing Role: Dual op-amp implementing I/V conversion and loop driver - one stage converts sensor bridge output, second sources 4–20 mA into load. Use Value: −40°C to 125°C rating ensures reliability in unheated enclosures; 8 MHz bandwidth supports fast transient response to pressure spikes. | Use Scenario: CO₂ and VOC sensor module in automotive HVAC system requiring low-power, high-accuracy analog front-end. IC Role / Device Role / Timing Role: Dual signal conditioner - first amplifies NDIR detector photodiode current, second buffers temperature-compensation thermistor voltage. Use Value: 650 µA/channel quiescent current meets ISO 16750-2 Class D leakage limits; rail-to-rail output drives ADC inputs without headroom loss. |
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 |
|---|---|---|---|
| TLV2782IDGK | Same electrical specs but rated for −40°C to 125°C industrial temperature range; identical MSOP-8 package and pinout. | Required for automotive under-hood or industrial ambient above 70°C; no design change needed if thermal margin exists. | Select TLV2782IDGK when operating ambient exceeds 70°C or long-term reliability at temperature extremes is mandated. |
| OPA2333AIDGKR | Zero-drift architecture (0.02 µV/°C offset drift), lower input offset (10 µV max), but higher supply current (17 µA/channel) and 350 kHz GBW. | Better DC accuracy for precision weigh scales or calibration equipment; unsuitable for >100 kHz signal paths due to limited bandwidth. | Choose OPA2333AIDGKR only when microvolt-level DC stability outweighs speed and power requirements. |
Compared with TLV2782CDG4, TLV2782IDGK offers extended temperature qualification without trade-offs in speed or power, while OPA2333AIDGKR sacrifices bandwidth and quiescent current for ultra-low drift - making TLV2782CDG4 optimal for cost-sensitive, battery-powered high-speed signal chains.
Availability
TLV2782CDG4 is available at Aetrix Electronics and suitable for portable instrumentation, medical wearables, and industrial process transmitters requiring stable component supply across commercial temperature grades.
Supply support for TLV2782CDG4 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 engineered for ultra-low-voltage, high-speed operational amplifier applications in portable and energy-constrained systems - delivering rail-to-rail performance at 1.8 V while maintaining 8 MHz bandwidth and sub-1 µA shutdown current.
FAQ
What is the maximum recommended supply voltage for TLV2782CDG4?
The absolute maximum supply voltage for TLV2782CDG4 is 4 V, but the recommended operating range is strictly 1.8 V to 3.6 V per the datasheet. Exceeding 3.6 V risks parametric degradation and reduced reliability, especially at elevated temperatures. Operation at 3.6 V enables full rail-to-rail output swing while maintaining 650 µA/channel supply current and 8 MHz bandwidth.
Does TLV2782CDG4 support true rail-to-rail input and output operation?
Yes, TLV2782CDG4 supports true rail-to-rail input and output operation. Its common-mode input voltage range extends from −0.2 V to VDD+0.2 V, allowing signals below ground or above VDD. The output swings within 180 mV of each rail at 1 mA load (1.8 V supply) and within 120 mV (2.7 V supply), enabling full utilization of ADC input ranges in single-supply systems.
What is the shutdown behavior of TLV2782CDG4?
TLV2782CDG4 features independent shutdown control on pins 5 (SHDN1) and 6 (SHDN2). When pulled low (<0.6 V), each channel enters shutdown mode with supply current reduced to 900 nA/channel and output placed in high-impedance state. The amplifier resumes normal operation within 800 ns after SHDN transitions high, with no external pull-up required - floating SHDN pins default to enabled.
Can TLV2782CDG4 drive capacitive loads without oscillation?
TLV2782CDG4 is stable with capacitive loads ≤25 pF when configured as unity-gain follower (phase margin ≥58°). For loads >10 pF, TI recommends adding a series null resistor (RNULL) between output and load per Figure 30 in the datasheet. Without RNULL, larger capacitive loads cause peaking or ringing due to reduced phase margin - verified in typical characteristics Figure 18.
What is the input bias current specification for TLV2782CDG4?
The input bias current for TLV2782CDG4 is 2.5 pA typical and 100 pA maximum over the full commercial temperature range (0°C to 70°C). This ultra-low value results from its CMOS input stage and enables use with high-impedance sources such as piezoelectric sensors, pH electrodes, and photodiode transimpedance configurations without significant offset error.
TLV2782CDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2782CDG4 FAQ
1.How can I place an order for TLV2782CDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2782CDG4 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 TLV2782CDG4 reliable?
The price and inventory of TLV2782CDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2782CDG4 is usually 5 days.
3.What payment methods are accepted for TLV2782CDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2782CDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2782CDG4?
TLV2782CDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2782CDG4 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 TLV2782CDG4?
For technical support, including TLV2782CDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2782CDG4 requirements.
6.How does Aetrix verify that TLV2782CDG4 is sourced from the original manufacturer or authorized distributors?
All TLV2782CDG4 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 TLV2782CDG4 meets industry standards.
7.What is the process for return or replacement of TLV2782CDG4?
All TLV2782CDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2782CDG4, 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 TLV2782CDG4 part is unused and in its original packaging.
Return procedure for TLV2782CDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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