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Texas Instruments TLV2635IDR
- Part No.:
- TLV2635IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2635IDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,983
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Product details
Overview
TLV2635IDR from Texas Instruments is a quad-channel, rail-to-rail output operational amplifier with shutdown control, designed for precision signal conditioning in low-voltage, high-speed data acquisition systems. It operates from 2.7 V to 5.5 V, delivers 9 MHz gain-bandwidth, consumes only 730 µA per channel, and supports −40°C to 125°C industrial temperature range - enabling direct interface with Li-ion powered microcontrollers and high-resolution ADCs.
For engineers reviewing the TLV2635IDR datasheet, TLV2635IDR pinout, TLV2635IDR application, or TLV2635IDR equivalent, key selection criteria include its rail-to-rail output swing, ground-inclusive input common-mode range (GND to VDD−1 V), ultralow shutdown current (4 µA/channel), and TSSOP-16 package compatibility with space-constrained industrial sensor front-ends and portable instrumentation.
Technical Context
The TLV2635IDR integrates four independent amplifiers with individual shutdown control per pair (pins 8 and 15), supporting flexible power management in multi-stage analog signal chains. Its input stage accepts signals down to ground while maintaining rail-to-rail output swing, eliminating level-shifting requirements in single-supply systems.
It features a 9 MHz unity-gain bandwidth with 9.5 V/µs negative slew rate at 5 V supply, low 50 nV/√Hz input voltage noise, and 0.095% THD+N at 10 kHz - making it suitable for driving SAR and sigma-delta ADC inputs without distortion-induced measurement error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with Li-ion cells and MSP430-family microcontrollers. |
| Gain-Bandwidth Product | 9 MHz - enables stable unity-gain buffer operation up to ~9 MHz or closed-loop gain of 10 at ~900 kHz. |
| Supply Current / Channel | 730 µA - allows four channels to operate within ~3 mA total, critical for battery-powered systems. |
| Rail-to-Rail Output | Swings within 100 mV of rails at 10 mA load - preserves dynamic range when interfacing with 12–16-bit ADCs. |
| Input Common-Mode Range | GND to VDD−1 V - permits direct sensing of ground-referenced transducer outputs without biasing resistors. |
| Shutdown Current / Channel | 4 µA - reduces system standby power by >99% versus active mode, enabling duty-cycled signal acquisition. |
| Operating Temperature | −40°C to 125°C - qualified for under-hood automotive sensors, industrial PLC I/O modules, and motor drive feedback circuits. |
Pinout & Package
TSSOP-16 package (PW), 5.0 mm × 4.4 mm footprint, 0.65 mm pitch, exposed thermal pad (non-electrical), RoHS-compliant NIPDAU lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 10, 12 | IN− (inverting input) | Differential input terminals for each of four op-amps; require matched trace routing for optimal CMRR. |
| 2, 4, 9, 11 | IN+ (non-inverting input) | High-impedance inputs (1 pA bias current) accepting signals from GND to VDD−1 V. |
| 5, 6, 13, 14 | OUT (output) | Rail-to-rail capable outputs sourcing/sinking ±28 mA at 5 V - drives 2 kΩ loads with <0.1% gain error. |
| 7, 16 | GND | Power and signal reference planes; must be connected to low-impedance PCB ground plane for noise immunity. |
| 8 | 1/2SHDN | Active-low enable for channels 1 & 2; pulls below 0.4 V to disable, draws <19 µA in shutdown. |
| 15 | 3/4SHDN | Active-low enable for channels 3 & 4; independent control allows staggered wake-up in multi-channel systems. |
| 16 | VDD | Single positive supply input; decoupling capacitor (0.1 µF ceramic) required within 2 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full-scale signal headroom at 2.7 V supply - avoids clipping in low-voltage data converter interfaces. |
| Ground-inclusive input range | Accepts 0 V input without phase reversal or increased offset - eliminates need for external bias networks in sensor amps. |
| Independent dual-pair shutdown | Reduces quiescent current to 16 µA for all four channels - extends battery life in portable diagnostic equipment. |
| Low 50 nV/√Hz input voltage noise | Preserves SNR in 16-bit+ ADC front-ends - critical for precision weigh scales and medical ECG signal conditioning. |
| 9.5 V/µs negative slew rate | Supports fast settling of step inputs in closed-loop configurations - ensures accurate sampling of transient events. |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Instrumentation |
|---|---|
Use Scenario: Amplifying low-level output from strain gauges, RTDs, or thermocouples in PLC analog input modules. IC Role / Device Role: Precision instrumentation amplifier front-end with programmable gain and rail-to-rail output drive capability. Use Value: Input common-mode range including ground enables direct connection to unbuffered bridge sensors; 730 µA/channel minimizes self-heating drift in sealed enclosures. | Use Scenario: Buffering ECG electrode signals before 24-bit delta-sigma ADC in handheld patient monitors. IC Role / Device Role: Low-noise, low-power signal conditioner with shutdown control for intermittent measurement cycles. Use Value: 50 nV/√Hz input noise preserves microvolt-level cardiac signals; 4 µA shutdown current extends battery runtime between patient checks. |
| Li-ion Powered Data Loggers | Automotive Cabin Environment Sensors |
Use Scenario: Scaling and filtering analog outputs from humidity, pressure, and gas sensors in battery-operated environmental loggers. IC Role / Device Role: Multi-channel analog front-end with independent shutdown for adaptive power management. Use Value: Dual-pair shutdown (pins 8 & 15) allows selective channel activation - cuts system idle current by >95% during sleep intervals. | Use Scenario: Signal conditioning for cabin temperature, CO₂, and particulate matter sensors in automotive HVAC control units. IC Role / Device Role: High-temperature-stable op-amp for sensor excitation and linearization circuits. Use Value: Guaranteed operation from −40°C to 125°C ensures reliability in dashboard-mounted electronics; 9 MHz GBW supports fast response to rapid cabin air quality changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2634IPWR | No shutdown function; identical GBW, noise, and supply specs; TSSOP-14 package. | Lacks per-pair shutdown control - unsuitable where dynamic power gating is required. | Select TLV2634IPWR only if continuous operation is acceptable and board layout accommodates 14-pin vs. 16-pin footprint. |
| OPA4343UA | Higher 5.5 MHz GBW, lower 25 nV/√Hz noise, but no rail-to-rail output; SOIC-14 package. | Cannot drive ADCs to full scale near supply rails - requires external level-shifting for 12-bit+ resolution. | Choose OPA4343UA only when ultra-low noise dominates over output swing and shutdown capability. |
Compared with TLV2634IPWR and OPA4343UA, the TLV2635IDR uniquely combines quad-channel operation, rail-to-rail output, ground-sensing input, and dual-pair shutdown in a single TSSOP-16 package - delivering the most integrated solution for battery-sensitive, high-precision, multi-sensor systems requiring thermal robustness and minimal external components.
Availability
TLV2635IDR is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable medical instrumentation, and Li-ion powered data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2635IDR 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-speed, low-voltage, rail-to-rail performance in battery-powered and industrial-grade applications - targeting data acquisition, sensor interfacing, and portable instrumentation where supply headroom and thermal resilience are critical.
FAQ
What is the maximum operating supply voltage for TLV2635IDR?
The absolute maximum supply voltage for TLV2635IDR 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 invalidates parametric guarantees. At 5.5 V, the device maintains full rail-to-rail output swing and specified 9 MHz gain-bandwidth, making it ideal for systems powered by regulated 5 V rails or fully charged Li-ion batteries.
Does TLV2635IDR support true rail-to-rail input operation?
No, TLV2635IDR does not support rail-to-rail input - its common-mode input voltage range is specified as GND to VDD−1 V. However, it does provide rail-to-rail output swing, and the ground-inclusive input range enables direct interface with ground-referenced sensors. This architecture balances input headroom, output fidelity, and power efficiency for single-supply systems where input signals stay ≥1 V below VDD.
How does the shutdown functionality work on TLV2635IDR?
TLV2635IDR features two independent shutdown pins: pin 8 (1/2SHDN) disables channels 1 and 2, and pin 15 (3/4SHDN) disables channels 3 and 4. Both are active-low; pulling either pin below 0.4 V reduces supply current per enabled channel to ≤4 µA. The turn-on time is 1.5 µs at 5 V, allowing rapid reactivation for burst-mode sensing. Unused shutdown pins must be tied to VDD to ensure normal operation of their respective channel pairs.
Can TLV2635IDR drive capacitive loads directly?
TLV2635IDR is stable with capacitive loads up to 100 pF when using the recommended 100 Ω null resistor (Rnull) in series with the output. For larger loads (e.g., ADC input capacitance >100 pF), external isolation (e.g., 10–50 Ω series resistor) is required to maintain phase margin >45° and prevent peaking or oscillation. The datasheet's Figure 17 confirms stability up to 50 pF with Rnull = 0 Ω, and up to 100 pF with Rnull = 20 Ω.
What is the typical input offset voltage of TLV2635IDR over temperature?
The typical input offset voltage of TLV2635IDR is 250 µV at 25°C, with a maximum of 5200 µV over the full −40°C to 125°C range. Its temperature coefficient is 3 µV/°C, meaning offset drift contributes ≤300 µV over a 100°C span. This performance is sufficient for 12-bit systems (LSB ≈ 1.2 mV at 5 V full scale) but may require calibration in 16-bit applications where LSB = 76 µV.
TLV2635IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- 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 (x4 Channels)
- Current - Output / Channel:
- 28 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
TLV2635IDR FAQ
1.How can I place an order for TLV2635IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2635IDR 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 TLV2635IDR reliable?
The price and inventory of TLV2635IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2635IDR is usually 5 days.
3.What payment methods are accepted for TLV2635IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2635IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2635IDR?
TLV2635IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2635IDR 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 TLV2635IDR?
For technical support, including TLV2635IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2635IDR requirements.
6.How does Aetrix verify that TLV2635IDR is sourced from the original manufacturer or authorized distributors?
All TLV2635IDR 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 TLV2635IDR meets industry standards.
7.What is the process for return or replacement of TLV2635IDR?
All TLV2635IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2635IDR, 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 TLV2635IDR part is unused and in its original packaging.
Return procedure for TLV2635IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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