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Texas Instruments TLV2475CD
- Part No.:
- TLV2475CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2475CD.pdf
- Description:
- IC CMOS 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,640
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Product details
Overview
TLV2475CD from Texas Instruments is a quad-channel, rail-to-rail input/output CMOS operational amplifier with shutdown functionality, 2.8MHz gain-bandwidth product, 600μA per channel supply current, and ±35mA output drive capability at 500mV from rails. It operates from 2.7V to 6V and is optimized for low-voltage sensor interface and portable medical equipment.
For engineers reviewing the TLV2475CD datasheet, TLV2475CD pinout, TLV2475CD application, or TLV2475CD equivalent, key selection criteria include rail-to-rail I/O swing, ultra-low shutdown current (1000nA/ch at 5V), input bias current (2.5pA), and TSSOP-16 packaging for high-density analog signal conditioning.
Technical Context
The TLV2475CD integrates four independent amplifiers in a single TSSOP-16 package, each featuring CMOS input stage with 2.5pA bias current and rail-to-rail output stage capable of sourcing/sinking ±35mA while maintaining 180mV headroom from supply rails. Its 2.8MHz GBW supports medium-speed signal conditioning without excessive power penalty.
Shutdown control is implemented per-channel via dedicated SHDN pins (pins 3/4/13/14), enabling selective deactivation to reduce total system quiescent current to sub-microamp levels. The device is fully specified across 0°C to +70°C (C-suffix) and supports single-supply operation down to 2.7V with 250μV typical input offset voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Quad - enables compact multi-stage filtering or simultaneous signal conditioning of four sensors. |
| Supply Voltage Range | 2.7V to 6V - compatible with Li-ion, 3.3V, and 5V systems without level-shifting. |
| Gain-Bandwidth Product | 2.8MHz - supports stable unity-gain buffer or closed-loop gain ≥10 up to ~280kHz. |
| Input Bias Current | 2.5pA - minimizes error in high-impedance sensor interfaces (e.g., pH electrodes, photodiodes). |
| Output Drive | ±35mA at 500mV from rail - drives 10kΩ loads to full rail while delivering >10mA into 100Ω loads. |
| Shutdown Current | 1000nA/ch at 5V - reduces total quiescent draw to <4μA when all channels disabled. |
| Input Offset Voltage | 250μV (typ) - ensures <1mV error in 4V full-scale 12-bit ADC front-ends. |
Pinout & Package
TSSOP-16 package with 0.65mm pitch, 5.0mm × 4.4mm body, and exposed pad not electrically connected. Pin 1 marked by beveled edge or molded dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 12 | Output (OUT1–OUT4) | Rail-to-rail outputs capable of ±35mA drive; require no external pull-up/down in most configurations. |
| 2, 6, 10, 15 | Inverting Input (IN−1–IN−4) | High-impedance CMOS node; sensitive to PCB leakage-keep traces short and guard-ring protected. |
| 3, 7, 11, 14 | Non-inverting Input (IN+1–IN+4) | Matched to IN− pins; used for unity-gain buffers or active filters requiring low input current error. |
| 4, 16 | Power Supply (VDD, GND) | VDD (pin 4) and GND (pin 16) are shared across all four amplifiers; decoupling required within 1cm. |
| 8, 13 | Shutdown Control (1/2SHDN, 3/4SHDN) | Active-low logic inputs; drive to GND disables corresponding pair; floating = enabled (internal pull-up not guaranteed). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Swings within 180mV of VDD/GND with 10mA load-maximizes dynamic range in 3.3V systems. |
| Ultra-low shutdown current | 1000nA/channel at 5V enables battery-powered devices to achieve multi-year shelf life. |
| High output drive | ±35mA at 500mV from rail eliminates need for external buffer stages in DAC output drivers. |
| Low input bias current | 2.5pA enables accurate amplification of nanoamp-level transducer signals without guard traces. |
| Single-supply operation | 2.7V minimum VDD supports direct connection to LiFePO₄ or two-cell alkaline batteries. |
Applications
| Portable ECG Monitor | Industrial Temperature Sensor Interface |
|---|---|
Use Scenario: Amplifying microvolt-level differential signals from Ag/AgCl electrodes in battery-powered wearable ECG units. IC Role / Device Role / Timing Role: Quad-channel instrumentation front-end: two channels for lead-I/II differential amplification, one for right-leg drive, one for reference buffer. Use Value: 2.5pA input bias prevents electrode polarization drift; rail-to-rail output delivers full 3.3V ADC range without level-shifting. | Use Scenario: Conditioning output from Pt100 RTD bridges in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision current-to-voltage conversion and low-pass filtering before 16-bit SAR ADC sampling. Use Value: 250μV offset ensures <0.1°C error in 0–100°C range; ±35mA drive handles 25mA loop-powered transmitter loads. |
| Medical Pulse Oximeter | Automotive Cabin Air Quality Sensor |
Use Scenario: Dual-wavelength (660nm/940nm) photodiode signal amplification with synchronous demodulation. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) for each photodiode, followed by DC-blocking and gain stages. Use Value: 2.8MHz GBW supports >100kHz modulation bandwidth; shutdown mode cuts quiescent current during LED off-cycles. | Use Scenario: Signal conditioning for NDIR CO₂ and VOC sensors in automotive HVAC control units. IC Role / Device Role / Timing Role: Low-noise preamplifier and 2nd-order anti-aliasing filter feeding automotive-grade 12-bit ADC. Use Value: 15nV/√Hz input noise preserves SNR in 1Hz–10Hz gas concentration measurement band. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2475ID | Same architecture and pinout; rated for –40°C to +125°C industrial temperature range. | Suitable for under-hood automotive or industrial motor control where extended temperature operation is mandatory. | Select TLV2475ID when ambient operating temperature exceeds +70°C or AEC-Q200 qualification is required. |
| OPA2333PWR | Zero-drift architecture; 0.02μV/°C offset drift vs. TLV2475CD's 0.4μV/°C; higher 350kHz GBW but lower 50mA output drive. | Better for precision DC-coupled applications (e.g., weigh scales) where long-term offset stability outweighs speed and drive needs. | Choose OPA2333PWR only if sub-μV offset drift over temperature is critical and ±35mA drive is unnecessary. |
Compared with TLV2475ID, the TLV2475CD offers identical electrical performance at lower cost for commercial-temperature applications; versus OPA2333PWR, it trades zero-drift precision for higher speed, greater output current, and lower quiescent power-making it optimal for battery-constrained, medium-bandwidth sensor front-ends.
Availability
TLV2475CD is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor nodes, and automotive cabin electronics requiring stable component supply with consistent TSSOP-16 packaging and RoHS-compliant manufacturing.
Supply support for TLV2475CD 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 solutions, with decades of expertise in precision op-amps and low-power signal chain ICs.
The TLV247x family was designed specifically for battery-powered, rail-to-rail signal acquisition in space-constrained applications-emphasizing micropower efficiency without sacrificing output drive or AC performance.
FAQ
What is the maximum capacitive load the TLV2475CD can drive without instability?
The TLV2475CD requires external series resistance (RNULL ≥20Ω) when driving capacitive loads >10pF to maintain phase margin above 60°. At 1000pF load with 10kΩ feedback, phase margin drops to 61° at 3V and 68° at 5V-so RNULL is mandatory for reliable operation with LCD bias or long cable loads. The TLV2475CD datasheet Figure 42 specifies this compensation method explicitly.
Does the TLV2475CD support true single-supply operation with input common-mode range extending to V− (GND)?
Yes, the TLV2475CD features rail-to-rail input stage allowing common-mode voltage from GND to VDD. At VDD = 3V, the input range is 0V to 3V; at 5V, it is 0V to 5V. This enables direct interfacing with resistive sensors or DAC outputs referenced to ground without level-shifting circuitry-confirmed in the "Common-mode input voltage range" specification (0 to VDD) on page 4 of the TLV2475CD datasheet.
How does shutdown functionality work on the TLV2475CD, and what happens to the outputs during shutdown?
The TLV2475CD uses two dual-channel shutdown pins (pins 8 and 13): pin 8 controls channels 1/2, pin 13 controls channels 3/4. When pulled low, each pair enters high-impedance output state with supply current dropping to 1000nA per channel at 5V. Outputs float-no internal clamping-so external pull-downs may be needed to prevent undefined states in downstream circuits. Turn-off time is 250ns, turn-on time is 5μs (page 6, Electrical Characteristics).
What is the typical input-referred voltage noise density of the TLV2475CD, and at what frequency is it measured?
The TLV2475CD exhibits 15nV/√Hz input-referred voltage noise density at 1kHz and 28nV/√Hz at 100Hz, per the "ELECTRICAL CHARACTERISTICS (continued)" table on page 7 of the datasheet. This low noise supports high-resolution measurements in DC-coupled sensor paths-e.g., thermocouple amplification-without dominating system noise floor when paired with 16-bit ADCs.
Can the TLV2475CD be used in a unity-gain stable configuration with 100pF capacitive load on the output?
No-unity-gain stability is not guaranteed with 100pF directly on the output. The TLV2475CD's phase margin falls below 45° at 100pF (Figure 18/19), risking oscillation. To stabilize, add a 20Ω–100Ω series resistor (RNULL) between amplifier output and capacitive load, as shown in Figure 42 of the datasheet. This isolates the load capacitance from the feedback loop while preserving DC accuracy.
TLV2475CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 2.8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2.5 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 600µA (x4 Channels)
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
TLV2475CD FAQ
1.How can I place an order for TLV2475CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2475CD 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 TLV2475CD reliable?
The price and inventory of TLV2475CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2475CD is usually 5 days.
3.What payment methods are accepted for TLV2475CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2475CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2475CD?
TLV2475CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2475CD 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 TLV2475CD?
For technical support, including TLV2475CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2475CD requirements.
6.How does Aetrix verify that TLV2475CD is sourced from the original manufacturer or authorized distributors?
All TLV2475CD 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 TLV2475CD meets industry standards.
7.What is the process for return or replacement of TLV2475CD?
All TLV2475CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2475CD, 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 TLV2475CD part is unused and in its original packaging.
Return procedure for TLV2475CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2475CD Tags
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