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Texas Instruments TLV2784IN
- Part No.:
- TLV2784IN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV2784IN.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:845
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Product details
Overview
TLV2784IN from Texas Instruments is a quad rail-to-rail input/output operational amplifier optimized for low-voltage, low-power applications. It operates from 1.8 V to 3.6 V supply, delivers 8 MHz gain-bandwidth, 4.8 V/µs slew rate at 2.7 V, and 650 µA per channel supply current - enabling high-resolution data acquisition in battery-powered sensor front-ends and portable instrumentation.
For engineers reviewing the TLV2784IN datasheet, TLV2784IN pinout, TLV2784IN application, or TLV2784IN equivalent, this device is selected for precision signal conditioning where rail-to-rail swing, sub-10 nV/√Hz noise at 10 kHz, and −40°C to 125°C industrial temperature range are required in compact PDIP packaging.
Technical Context
The TLV2784IN 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 single-supply operation down to 1.8 V. Its 8 MHz unity-gain bandwidth and 58° phase margin at 2 kΩ/25 pF load ensure stable unity-gain follower and closed-loop configurations without external compensation.
Each of its four amplifiers features independent shutdown control via dedicated SHDN pins (pins 6 and 13), reducing quiescent current to 900 nA/channel when asserted. Input bias current is 2.5 pA typical, enabling high-impedance transducer interfacing without significant offset drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 3.6 V - supports dual AA/AAA battery operation (±0.9 V to ±1.8 V) and direct connection to 3.3 V logic rails. |
| Gain-Bandwidth Product | 8 MHz - enables stable closed-loop gain ≥10 up to ~800 kHz with minimal phase error in active filters. |
| Slew Rate | 4.8 V/µs at VDD = 2.7 V - supports 1 VPP signals up to ~760 kHz without slewing distortion in unity-gain buffer mode. |
| Input Noise Voltage | 9 nV/√Hz at 10 kHz - preserves SNR in 16-bit ADC driver stages with <0.1% THD+N at 10 kHz. |
| Input Offset Voltage | 3000 µV max (−40°C to 125°C) - ensures ≤3 mV output error in 1× gain configurations with 3.3 V supply. |
| Supply Current/Channel | 650 µA typical - draws only 2.6 mA total for all four op-amps, critical for always-on sensor nodes. |
| Common-Mode Range | −0.2 V to VDD+0.2 V - accepts inputs below ground and above supply, simplifying level-shifting in mixed-supply systems. |
Pinout & Package
TLV2784IN is housed in a 14-pin plastic DIP (PDIP-14) package with 0.300-inch body width and through-hole mounting. Thermal resistance θJA is 78°C/W, supporting 1.6 W power dissipation at TA ≤ 25°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - rail-to-rail swing, capable of sourcing/sinking ±10 mA. |
| 2 | IN− A | Inverting input of Amp A - high-impedance CMOS node (2.5 pA bias current). |
| 3 | IN+ A | Non-inverting input of Amp A - supports common-mode voltage down to −0.2 V. |
| 4 | GND | Analog ground reference - must be connected to system ground plane for noise immunity. |
| 5 | NC | No internal connection - left unconnected; no routing or pull-up required. |
| 6 | SHDN A/B | Shared shutdown control for Amps A and B - logic-low disables both, placing outputs in high-Z. |
| 7 | VDD | Positive supply rail - decoupled with 0.1 µF ceramic + 6.8 µF tantalum capacitors. |
| 8 | OUT B | Amplifier B output - electrically identical to OUT A, independently usable. |
| 9 | IN− B | Inverting input of Amp B - matched performance to IN− A across temperature. |
| 10 | IN+ B | Non-inverting input of Amp B - same rail-to-rail input capability as IN+ A. |
| 11 | NC | No internal connection - unused pin; no electrical function. |
| 12 | SHDN C/D | Shared shutdown control for Amps C and D - independent of SHDN A/B. |
| 13 | OUT C | Amplifier C output - fully functional rail-to-rail output, not multiplexed. |
| 14 | OUT D | Amplifier D output - separate output node; allows simultaneous 4-channel buffering. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization in 1.8 V systems - output swings within 180 mV of rails at 1 mA load. |
| Low 650 µA/channel supply current | Reduces total quiescent draw to 2.6 mA - extends battery life in portable medical monitors by >3× vs. legacy 2 mA/op-amp solutions. |
| 8 MHz bandwidth at 650 µA | Delivers 12× higher speed-per-mA than comparable micropower op-amps - suitable for anti-aliasing filters up to 400 kHz. |
| Shutdown mode (900 nA/channel) | Cuts total supply current to 3.6 µA for two disabled amplifiers - enables selective channel power gating in multi-sensor arrays. |
| −40°C to 125°C operation | Qualified for under-hood automotive and industrial PLC environments without derating - specified performance maintained across full range. |
Applications
| Portable ECG Front-End | Industrial 4–20 mA Transmitter |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in handheld cardiac monitors. IC Role / Device Role / Timing Role: Quad-channel instrumentation amplifier front-end with DC-coupled gain stages and active filtering. Use Value: 9 nV/√Hz input noise and rail-to-rail output preserve 16-bit ADC ENOB; 1.8 V operation extends coin-cell battery life to >72 hours. | Use Scenario: Conditioning RTD/thermocouple outputs and driving 4–20 mA loop with HART modulation capability. IC Role / Device Role / Timing Role: Precision voltage-to-current converter input buffer and loop driver amplifier. Use Value: 3000 µV max VIO ensures <0.1% span error over −40°C to 125°C; shutdown mode reduces standby power in wireless field devices. |
| Automotive Cabin Air Quality Sensor | Smart Energy Meter Signal Chain |
Use Scenario: Amplifying ppm-level CO₂ and VOC sensor outputs in HVAC control modules. IC Role / Device Role / Timing Role: Low-drift, low-noise preamplifier for electrochemical gas sensors with integrated temperature compensation. Use Value: 2.5 pA input bias current prevents sensor loading errors; −40°C to 125°C rating meets AEC-Q100 Grade 2 requirements. | Use Scenario: Isolated voltage/current sensing and anti-aliasing filtering prior to sigma-delta ADC in Class 0.2 meters. IC Role / Device Role / Timing Role: High-precision, low-power signal conditioner for metrology-grade analog front-end. Use Value: 8 MHz GBW supports 10× oversampling filter design; 650 µA/channel enables 4-channel simultaneous sampling within thermal limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2784CD | Same core specs but commercial grade (0°C to 70°C); SOIC-14 package; 3000 µV VIO max at 25°C. | Targeted for consumer electronics and non-automotive industrial controls where extended temperature is not required. | Select TLV2784CD for cost-sensitive, room-temperature applications with surface-mount assembly constraints. |
| OPA2333AIDR | Zero-drift architecture; 2 µV max VIO; 350 µA/channel; 350 kHz GBW; SOIC-8 (dual only). | Used where ultra-low offset drift dominates over bandwidth - e.g., precision weigh scales, strain gauge bridges. | Choose OPA2333AIDR only when µV-level offset stability is mandatory; TLV2784IN provides 23× higher bandwidth at 1.85× supply current. |
Compared with TLV2784CD, TLV2784IN offers guaranteed −40°C to 125°C operation and PDIP through-hole compatibility, while OPA2333AIDR trades bandwidth for nanovolt-level offset stability - making TLV2784IN optimal for high-speed, wide-temperature embedded signal chains requiring four independent channels.
Availability
TLV2784IN is available at Aetrix Electronics and suitable for portable medical devices, industrial process transmitters, automotive cabin sensors, and smart energy metering systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2784IN 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 for ultra-low-voltage, rail-to-rail signal conditioning in battery-powered and thermally constrained applications - delivering high bandwidth and low noise without sacrificing quiescent power.
FAQ
What is the maximum operating supply voltage for TLV2784IN?
The absolute maximum supply voltage for TLV2784IN 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 high temperatures. Operation at 3.6 V delivers optimal slew rate (5 V/µs) and output drive capability while maintaining 650 µA/channel supply current.
Does TLV2784IN support true rail-to-rail input and output?
Yes, TLV2784IN supports rail-to-rail input with a common-mode range from −0.2 V to VDD+0.2 V, and rail-to-rail output that swings within 180 mV of each rail at 1 mA load. This allows full-scale signal handling in 1.8 V systems - for example, a 0–1.8 V input produces a 0–1.8 V output with <1% linearity error - confirmed across −40°C to 125°C.
How does the shutdown function work on TLV2784IN?
TLV2784IN has two independent shutdown pins: pin 6 (SHDN A/B) and pin 12 (SHDN C/D). Driving either pin low disables its paired amplifiers, reducing supply current per channel to 900 nA and placing outputs in high-impedance state. Pins can be left floating to enable - but parasitic leakage must be controlled to avoid unintended shutdown, especially in high-impedance PCB layouts.
What is the input bias current specification for TLV2784IN?
The input bias current for TLV2784IN is 2.5 pA typical and 300 pA maximum across −40°C to 125°C. This ultra-low value minimizes voltage errors in high-impedance sensor interfaces - for example, with a 1 MΩ source resistance, bias current contributes only 0.3 µV offset, preserving accuracy in pH probe and photodiode amplifier designs.
Can TLV2784IN drive capacitive loads directly?
TLV2784IN is stable with capacitive loads ≤10 pF when configured as a unity-gain buffer. For loads >10 pF - such as ADC input capacitance or long cables - a series resistor (RNULL) of 10–50 Ω must be added between the output and load to maintain ≥58° phase margin and prevent ringing. This requirement is verified in Figure 18 of the datasheet under varying CL conditions.
TLV2784IN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- 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 (x4 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:
- 14-PDIP
TLV2784IN FAQ
1.How can I place an order for TLV2784IN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2784IN 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 TLV2784IN reliable?
The price and inventory of TLV2784IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2784IN is usually 5 days.
3.What payment methods are accepted for TLV2784IN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2784IN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2784IN?
TLV2784IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2784IN 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 TLV2784IN?
For technical support, including TLV2784IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2784IN requirements.
6.How does Aetrix verify that TLV2784IN is sourced from the original manufacturer or authorized distributors?
All TLV2784IN 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 TLV2784IN meets industry standards.
7.What is the process for return or replacement of TLV2784IN?
All TLV2784IN units undergo pre-shipment inspection (PSI). If there is an issue with TLV2784IN, 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 TLV2784IN part is unused and in its original packaging.
Return procedure for TLV2784IN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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