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Texas Instruments TLV2633IN
- Part No.:
- TLV2633IN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV2633IN.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:592
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Product details
Overview
TLV2633IN from Texas Instruments is a dual-channel, rail-to-rail output operational amplifier with shutdown control, designed for precision analog signal conditioning in single-supply systems. It operates from 2.7 V to 5.5 V, delivers 9 MHz gain-bandwidth product at 730 µA/channel supply current, supports −40°C to 125°C industrial temperature range, and features ground-sensing input (VICR = GND to VDD−1 V). It is used in battery-powered data acquisition front-ends interfacing high-resolution ADCs.
For engineers reviewing the TLV2633IN datasheet, TLV2633IN pinout, TLV2633IN application, or TLV2633IN equivalent, key selection criteria include its shutdown current (4 µA/channel), rail-to-rail output swing, input common-mode range including ground, low noise (50 nV/√Hz), and compatibility with Li-ion powered systems and MSP430 microcontrollers.
Technical Context
The TLV2633IN implements a voltage-feedback op-amp architecture optimized for wide bandwidth and low quiescent power. Its internal design enables rail-to-rail output swing while maintaining stable operation with capacitive loads up to 50 pF and phase margin ≥50°, supported by a 9 MHz gain-bandwidth product and 9.5 V/µs negative slew rate at 5 V supply.
It integrates independent shutdown control per channel (SHDN pins), enabling dynamic power management in multi-stage analog chains. Input stage biasing allows common-mode operation down to ground, eliminating level-shifting requirements when interfacing with ground-referenced sensors or DAC outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - Enables direct operation from single Li-ion cell (3.0–4.2 V) or regulated 3.3 V/5 V rails without external regulators. |
| Gain-Bandwidth Product | 9 MHz - Supports stable unity-gain buffering of signals up to ~1 MHz with ≤1% gain error, suitable for driving SAR ADC inputs. |
| Supply Current per Channel | 730 µA - Enables ultra-low-power analog signal conditioning in always-on sensor nodes with <1.5 mW total active power at 5 V. |
| Input Common-Mode Range | GND to VDD−1 V - Allows direct connection to ground-referenced transducers (e.g., bridge sensors, thermistors) without input biasing networks. |
| Shutdown Supply Current | 4 µA/channel - Reduces system standby power by >99% versus active mode, critical for duty-cycled measurement systems. |
| Output Drive Capability | ±28 mA - Sustains rail-to-rail output swing into 2 kΩ loads, sufficient for driving ADC reference buffers or low-impedance filters. |
| Equivalent Input Noise | 50 nV/√Hz @ 1 kHz - Limits added noise in 16-bit+ data converter interfaces where SNR degradation must stay below 0.5 LSB. |
Pinout & Package
DIP-14 package (N suffix) with 0.3-inch body width, through-hole mounting, and industry-standard pin spacing (0.1 inch). RoHS-compliant, lead-free finish, MSL-unrated (non-moisture-sensitive).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Channel 1 output - Delivers rail-to-rail buffered signal; requires no pull-up/down for proper DC biasing. |
| 2 | 1IN− | Inverting input - High-impedance node (1000 GΩ differential resistance); sensitive to PCB leakage and layout parasitics. |
| 3 | 1IN+ | Non-inverting input - Accepts common-mode voltages from GND to VDD−1 V; enables ground-referenced sensor interfacing. |
| 4 | GND | Analog ground reference - Must be connected to clean system AGND plane; separate from digital ground except at single point. |
| 5 | NC | No internal connection - Left unconnected; not bonded or tied internally; electrically floating. |
| 6 | 1SHDN | Channel 1 shutdown control - Active-low logic input; <0.4 V disables channel, >2 V enables; draws <19 µA in shutdown. |
| 7 | NC | No internal connection - Left unconnected; no internal bond wire or circuit connection. |
| 8 | VDD | Positive supply - Decoupling capacitor (0.1 µF ceramic) required within 5 mm of pin to ensure stability and PSRR performance. |
| 9 | 2OUT | Channel 2 output - Independent rail-to-rail output; can be used for dual-path signal conditioning or active filtering. |
| 10 | 2IN− | Channel 2 inverting input - Electrically identical to Pin 2; supports independent feedback networks per channel. |
| 11 | 2IN+ | Channel 2 non-inverting input - Matches Pin 3 specification; enables simultaneous dual-sensor amplification with shared supply. |
| 12 | NC | No internal connection - Not internally connected; must remain unconnected per datasheet guidance. |
| 13 | 2SHDN | Channel 2 shutdown control - Independent of Pin 6; allows asymmetric power gating (e.g., enable only one channel during calibration). |
| 14 | NC | No internal connection - Floating terminal; no internal function or bond wire. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full-scale output from 25 mV above GND to 25 mV below VDD at 10 mA load, preserving dynamic range in low-voltage systems. |
| Ground-sensing input range | Accepts input signals from GND to VDD−1 V, eliminating need for input bias resistors or level shifters with ground-referenced sources. |
| Ultralow shutdown current | 4 µA per channel ensures <1 µA total quiescent draw when both channels disabled - extends battery life in intermittent-sampling applications. |
| Wide temperature operation | Specified from −40°C to 125°C enables deployment in automotive engine compartments, industrial PLC I/O modules, and outdoor metering. |
| Low input offset drift | 3 µV/°C temperature coefficient minimizes calibration drift over temperature, reducing need for periodic system recalibration. |
Applications
| Industrial Sensor Signal Conditioning | Portable Data Acquisition Front-End |
|---|---|
|
Use Scenario: Amplifying low-level mV-range outputs from strain gauges and RTDs in factory-floor pressure/temperature transmitters. IC Role / Device Role / Timing Role: Precision instrumentation amplifier stage providing gain, offset correction, and drive capability for 16-bit SAR ADC inputs. Use Value: Ground-sensing input eliminates external bias network; rail-to-rail output maximizes ADC utilization; 50 nV/√Hz noise preserves resolution. |
Use Scenario: Battery-powered handheld multimeter or environmental logger acquiring voltage, current, and thermocouple signals. IC Role / Device Role / Timing Role: Dual-channel signal conditioner handling simultaneous analog inputs while minimizing active time via per-channel shutdown. Use Value: 730 µA/channel active current and 4 µA/channel shutdown extend Li-ion battery life to >1 year in sleep-wake cycles; 2.7 V minimum supply matches battery discharge curve. |
| Microcontroller Analog Interface | High-Speed DAC Output Buffer |
|
Use Scenario: Interfacing TI MSP430 ADC inputs with external sensors requiring gain and level translation in energy-harvesting nodes. IC Role / Device Role / Timing Role: Signal translator and buffer between MCU GPIO/analog peripherals and external analog subsystems. Use Value: 2.7 V operation matches MSP430 low-power core voltage; shutdown control synchronizes with MCU sleep modes to eliminate leakage paths. |
Use Scenario: Driving the reference input of a high-speed 12-bit DAC in waveform generation equipment requiring fast settling and low distortion. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate buffer isolating DAC output from varying load impedances and PCB capacitance. Use Value: 9.5 V/µs negative slew rate and 9 MHz GBW support <100 ns settling to 0.1% for 10 V step; THD+N <0.02% at 10 kHz preserves spectral purity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2633ID | SOIC-14 package, same electrical specs, higher thermal resistance (ΘJA = 122.3°C/W vs N-package's 78°C/W) | Better suited for surface-mount automated assembly; less suitable for prototyping or through-hole legacy boards | Select TLV2633ID for volume SMT production; TLV2633IN preferred for breadboarding, repair, or mixed-technology PCBs |
| OPA2343UA | 5.5 V max supply, 850 µA/channel, 5.5 MHz GBW, CMRR 67 dB min, no shutdown function | Lacks per-channel shutdown and ground-sensing input (VICR = −0.3 V to VDD+0.3 V), limiting use in ground-referenced sensor apps | Choose OPA2343UA only if shutdown and ground-input are unnecessary and lower bandwidth suffices; not drop-in compatible |
Compared with TLV2633ID and OPA2343UA, the TLV2633IN provides unique value in through-hole prototyping and thermal-limited environments due to its lower junction-to-ambient thermal resistance (78°C/W), while retaining full functional equivalence to the SOIC variant and offering superior input range and power control versus the OPA2343UA.
Availability
TLV2633IN is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable data acquisition front-ends, and microcontroller analog interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2633IN 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 decades of expertise in precision op-amps and low-power signal chain solutions.
The TLV263x family was engineered for high-performance, ultralow-power analog signal conditioning in battery-operated and industrial-grade systems, emphasizing rail-to-rail operation, ground-sensing inputs, and robust temperature performance.
FAQ
What is the maximum operating supply voltage for the TLV2633IN?
The absolute maximum supply voltage for the TLV2633IN is 6 V, but the recommended operating range is 2.7 V to 5.5 V. Operating beyond 5.5 V risks permanent damage and violates the device's specified electrical characteristics; sustained use at 6 V is not supported per the Absolute Maximum Ratings table in the datasheet.
Does the TLV2633IN support true rail-to-rail input operation?
No, the TLV2633IN does not support rail-to-rail input. Its input common-mode voltage range is specified from GND to VDD−1 V. While it includes ground in the range - enabling direct connection to ground-referenced sources - it cannot accept input signals at or near the positive rail (VDD), unlike rail-to-rail input op-amps.
How does the shutdown feature behave on the TLV2633IN?
The TLV2633IN has two independent shutdown pins (Pins 6 and 13): applying <0.4 V disables the respective channel (reducing supply current to 4 µA/channel), while >2 V enables it. Both channels remain functional when SHDN pins are left open or pulled high; no external pull-up is required for normal operation.
Can the TLV2633IN drive a 1000 pF capacitive load stably?
No - the TLV2633IN is characterized for stable operation with ≤50 pF capacitive loads (per typical phase margin curves and Figure 17). Driving 1000 pF directly will cause severe peaking or oscillation. A series isolation resistor (e.g., 100 Ω) between TLV2633IN output and the load is required to restore stability.
Is the TLV2633IN pin-compatible with other TLV263x variants in DIP-14 packages?
Yes - the TLV2633IN shares identical pinout and footprint with TLV2634IN (quad, no shutdown) and TLV2635IN (quad, with shutdown) in the DIP-14 (N) package. However, functionality differs: TLV2633IN is dual with shutdown, TLV2634IN is quad without shutdown, and TLV2635IN is quad with shutdown - so interchanging requires schematic and firmware validation.
TLV2633IN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 9 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.7 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 3.8mA (x2 Channels)
- Current - Output / Channel:
- 28 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLV2633IN FAQ
1.How can I place an order for TLV2633IN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2633IN 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 TLV2633IN reliable?
The price and inventory of TLV2633IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2633IN is usually 5 days.
3.What payment methods are accepted for TLV2633IN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2633IN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2633IN?
TLV2633IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2633IN 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 TLV2633IN?
For technical support, including TLV2633IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2633IN requirements.
6.How does Aetrix verify that TLV2633IN is sourced from the original manufacturer or authorized distributors?
All TLV2633IN 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 TLV2633IN meets industry standards.
7.What is the process for return or replacement of TLV2633IN?
All TLV2633IN units undergo pre-shipment inspection (PSI). If there is an issue with TLV2633IN, 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 TLV2633IN part is unused and in its original packaging.
Return procedure for TLV2633IN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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