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Texas Instruments TLV2782IP
- Part No.:
- TLV2782IP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV2782IP.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,933
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Product details
Overview
TLV2782IP 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 TLV2782IP datasheet, TLV2782IP pinout, TLV2782IP application, or TLV2782IP equivalent, this page provides verified package mapping (8-pin PDIP), confirmed dual-channel topology, rail-to-rail I/O behavior across −0.2 V to VDD+0.2 V, shutdown functionality (I-suffix variant), and real-world design implications for low-noise, low-distortion analog front-ends.
Technical Context
The TLV2782IP implements a CMOS input stage with rail-to-rail input common-mode range extending 0.2 V beyond both supply rails and rail-to-rail output swing within 180 mV of each rail at 1.8 V supply. Its 8 MHz unity-gain bandwidth is achieved with only 650 µA per channel, enabled by optimized transconductance and compensation design.
It features an active shutdown mode reducing supply current to 900 nA/channel, with 800 ns turn-on and 200 ns turn-off times. The device supports single-supply operation down to 1.8 V while maintaining 9 nV/√Hz input voltage noise at 10 kHz and <0.45% THD+N at AV = 100, making it suitable for driving high-resolution ADCs.
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 rechargeable cells without regulation. |
| Gain-Bandwidth Product | 8 MHz - supports stable closed-loop gain ≥10 up to ~800 kHz with adequate phase margin. |
| Slew Rate | 4.8 V/µs at VDD = 2.7 V - ensures ≤2.4 µs settling to 0.01% for 1 V step, critical for fast data converter buffering. |
| Input Offset Voltage | 3000 µV max (C-suffix) - defines minimum resolvable DC signal in precision sensor amplification. |
| Supply Current/Channel | 650 µA typical - allows dual-channel operation under 1.3 mA total, ideal for ultra-low-power wake-up circuits. |
| Input Noise Voltage | 9 nV/√Hz at 10 kHz - limits detectable signal floor in audio and instrumentation front-ends. |
| Rail-to-Rail I/O | Input: −0.2 V to VDD+0.2 V; Output: within 180 mV of rails at 1.8 V - maximizes dynamic range in single-supply systems. |
| Shutdown Current | 900 nA/channel - reduces system standby power by >99.9% versus active mode. |
Pinout & Package
TLV2782IP is housed in an 8-pin plastic DIP (PDIP) package with through-hole mounting, rated for industrial temperature range (−40°C to 125°C). Pin 1 is marked with a notch or dot; orientation follows standard DIP top-view convention.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of Channel 1 - drives loads up to ±10 mA; rail-to-rail swing enables full-scale ADC interfacing. |
| 2 | 1IN− | Inverting input of Channel 1 - high-impedance CMOS node; requires matched trace lengths for stability. |
| 3 | 1IN+ | Non-inverting input of Channel 1 - accepts signals from −0.2 V to VDD+0.2 V without clipping. |
| 4 | GND | Analog ground reference - must connect to low-impedance ground plane; separate from digital ground if mixed-signal layout. |
| 5 | 2IN− | Inverting input of Channel 2 - electrically isolated from Channel 1; shares no internal coupling. |
| 6 | 2IN+ | Non-inverting input of Channel 2 - identical input range and bias current specs as Pin 3. |
| 7 | 2OUT | Output of Channel 2 - independent output stage; supports simultaneous dual-channel signal processing. |
| 8 | VDD | Positive supply - accepts 1.8–3.6 V; requires local 0.1 µF ceramic decoupling placed ≤0.1 inch from pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.8 V supply range - no level-shifting needed for microcontroller ADC inputs. |
| 8 MHz bandwidth at 650 µA | Delivers high-speed performance with ultra-low quiescent current - unique trade-off for portable instrumentation. |
| Shutdown mode (900 nA/channel) | Reduces total system standby current to sub-µA levels - extends battery life in intermittent-sampling applications. |
| Low input voltage noise (9 nV/√Hz) | Preserves SNR in front-end amplification of thermocouples, strain gauges, and other low-level sensors. |
| Specified for −40°C to 125°C | Validated for use in automotive engine control modules, industrial PLC analog I/O, and outdoor sensor nodes. |
| CMOS input stage (2.5 pA IB) | Minimizes error from leakage across high-value feedback networks - essential for long-time-constant integrators. |
Applications
| Industrial Sensor Signal Conditioning | Portable Data Acquisition Front-End |
|---|---|
Use Scenario: Amplifying millivolt-level outputs from RTDs, thermocouples, or bridge-based pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Dual-channel precision op-amp providing programmable gain, offset correction, and rail-to-rail output drive into 16-bit SAR ADCs. Use Value: 8 MHz bandwidth supports anti-aliasing filter implementation; 9 nV/√Hz noise preserves resolution below 0.1°C error in temperature measurement. | Use Scenario: Battery-powered handheld multimeter or environmental monitor acquiring voltage, current, and temperature simultaneously. IC Role / Device Role / Timing Role: Dual op-amp performing signal buffering and level-shifting for multi-channel ADC sampling at 100 kSPS. Use Value: 1.8 V operation extends runtime on two AA cells; shutdown mode cuts idle current to <1 µA per channel during sleep intervals. |
| Low-Voltage Audio Line Driver | Medical ECG Analog Front-End |
Use Scenario: Driving line-level audio signals from portable media players into headphones or external DACs with minimal distortion. IC Role / Device Role / Timing Role: Dual op-amp configured as non-inverting buffer and active filter stage in single-supply audio path. Use Value: <0.45% THD+N at AV=100 ensures fidelity; rail-to-rail output delivers full 1.8 Vpp swing into 32 Ω loads without clipping. | Use Scenario: Amplifying microvolt-level biopotential signals from ECG electrodes prior to digitization in wearable health monitors. IC Role / Device Role / Timing Role: Dual op-amp implementing differential instrumentation amplifier core and right-leg drive circuitry. Use Value: 2.5 pA input bias current prevents electrode polarization; CMRR >70 dB minimizes 50/60 Hz mains interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2782IDR | Same electrical specs; MSOP-8 package (3 mm × 3 mm), tape-and-reel only, surface-mount. | Requires PCB redesign for SMT assembly; better thermal performance (ΘJA = 259.9°C/W vs 104°C/W for PDIP). | Select when board space is constrained and reflow capability exists; not drop-in compatible with TLV2782IP. |
| OPA2340UA | Wider supply range (2.7–5.5 V); higher GBW (5.5 MHz); lower noise (7 nV/√Hz); no shutdown. | Not usable below 2.7 V; lacks shutdown for ultra-low-power modes; larger SO-8 footprint. | Choose for higher-precision, higher-supply applications where 1.8 V operation is unnecessary. |
Compared with TLV2782IDR and OPA2340UA, the TLV2782IP offers unique 1.8 V operation and through-hole compatibility for prototyping and legacy industrial designs, while sacrificing miniaturization and omitting some precision enhancements found in newer alternatives.
Availability
TLV2782IP is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable data acquisition systems, and low-voltage medical monitoring equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2782IP 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 90 years of innovation in precision analog ICs and power management solutions.
The TLV278x family was designed specifically for ultra-low-voltage, rail-to-rail signal conditioning in battery-powered and energy-sensitive industrial and portable applications - emphasizing efficiency without compromising speed or accuracy.
FAQ
What is the maximum operating supply voltage for TLV2782IP?
The absolute maximum supply voltage for TLV2782IP 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 or permanent damage, especially at elevated temperatures. Operation at 3.6 V yields optimal slew rate (≥4 V/µs) and output drive capability while remaining within safe thermal margins for the PDIP package.
Does TLV2782IP support shutdown functionality?
Yes, TLV2782IP includes an active-low shutdown pin (SHDN) that reduces supply current to 900 nA per channel when pulled to GND. This feature is confirmed in the TLV278x family datasheet Section 7 (shutdown characteristics) and applies to all I-suffix variants including TLV2782IP. The pin is internally pulled up; leaving it floating enables normal operation, but external pull-up is recommended for noise immunity.
What is the input common-mode voltage range of TLV2782IP?
The input common-mode voltage range of TLV2782IP is specified as −0.2 V to VDD+0.2 V across the full industrial temperature range (−40°C to 125°C). This rail-to-rail input capability allows direct interfacing with sensors or DACs operating near ground or supply rails without external level-shifting circuitry - a key enabler for single-supply 1.8 V system design.
Can TLV2782IP drive capacitive loads directly?
No - TLV2782IP exhibits reduced phase margin with capacitive loads >10 pF, risking instability or ringing. The datasheet (Section 13, Figure 30) explicitly recommends adding a series null resistor (RNULL) between the output and load capacitance. For example, a 10–50 Ω resistor restores stability when driving 100 pF cables or ADC input capacitance, preserving 58° phase margin at unity gain.
What is the thermal resistance (θJA) of the TLV2782IP PDIP package?
The junction-to-ambient thermal resistance (θJA) for TLV2782IP in the 8-pin PDIP package is 104°C/W, measured on a low-K test PCB with no airflow (datasheet Dissipation Rating Table). At TA = 125°C, this limits continuous power dissipation to 240.4 mW. Designers must ensure PCB copper area and ambient conditions maintain junction temperature ≤150°C, especially in high-current or high-temperature deployments.
TLV2782IP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLV2782IP FAQ
1.How can I place an order for TLV2782IP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2782IP 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 TLV2782IP reliable?
The price and inventory of TLV2782IP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2782IP is usually 5 days.
3.What payment methods are accepted for TLV2782IP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2782IP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2782IP?
TLV2782IP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2782IP 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 TLV2782IP?
For technical support, including TLV2782IP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2782IP requirements.
6.How does Aetrix verify that TLV2782IP is sourced from the original manufacturer or authorized distributors?
All TLV2782IP 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 TLV2782IP meets industry standards.
7.What is the process for return or replacement of TLV2782IP?
All TLV2782IP units undergo pre-shipment inspection (PSI). If there is an issue with TLV2782IP, 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 TLV2782IP part is unused and in its original packaging.
Return procedure for TLV2782IP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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