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Texas Instruments TLV2475CPWP
- Part No.:
- TLV2475CPWP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLV2475CPWP.pdf
- Description:
- IC CMOS 4 CIRCUIT 16HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,890
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Product details
Overview
TLV2475CPWP from Texas Instruments is a quad-channel, rail-to-rail input/output CMOS operational amplifier with shutdown functionality, delivering 2.8MHz gain-bandwidth, 600μA/channel supply current, ±35mA output drive at 500mV from rails, and 250μV typical input offset voltage - optimized for low-voltage sensor signal conditioning in battery-powered medical and portable data acquisition systems.
For engineers reviewing the TLV2475CPWP datasheet, TLV2475CPWP pinout, TLV2475CPWP application, or TLV2475CPWP equivalent, this page provides verified package mapping (TSSOP-16), confirmed shutdown behavior (1000nA/ch @ 5V), rail-to-rail I/O swing limits (180mV from rails @ 10mA), and real-world design implications for capacitive load driving and single-supply operation.
Technical Context
The TLV2475CPWP implements a CMOS input stage enabling 2.5pA input bias current and rail-to-rail common-mode input range (0V to VDD), paired with a robust output stage capable of ±35mA sourcing/sinking while maintaining 180mV rail clearance under 10mA load. Its 2.8MHz gain-bandwidth product and 1.5V/μs slew rate support stable unity-gain buffer and active filter configurations in 2.7V–6V single-supply systems.
Shutdown control is implemented via dedicated SHDN pins (pins 3/4/13/14) that place all four amplifiers into high-impedance output state while reducing per-channel supply current to 1000nA at 5V - critical for extending battery life in intermittent-sensing applications without external power gating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Quad - enables compact multi-stage signal chains (e.g., 4-channel ECG front-end) without inter-device matching drift. |
| Supply Voltage Range | 2.7V to 6V - supports direct Li-ion (3.0–4.2V) and dual-AA (3.0V) battery operation without LDO. |
| Gain-Bandwidth Product | 2.8MHz - sufficient for anti-aliasing filters up to ~200kHz and precision instrumentation amplifier gain stages. |
| Input Offset Voltage | 250μV (typ) - ensures ≤0.5mV error in 2V full-scale 12-bit ADC interfaces without trimming. |
| Output Drive Capability | ±35mA at 500mV from rail - drives 10kΩ loads to full rail while sourcing/sinking >10× typical SAR ADC reference buffer requirements. |
| Shutdown Current | 1000nA/channel @ 5V - reduces total quiescent draw to <4.1μA in 4-channel shutdown mode, enabling years of shelf life in IoT sensors. |
| Input Bias Current | 2.5pA - minimizes voltage error across high-impedance pH or thermopile sensor bridges (>100MΩ). |
Pinout & Package
TSSOP-16 package with 0.65mm pitch, 5.0mm × 4.4mm body, and exposed thermal pad (not electrically connected). Pin 1 marked by beveled edge or molded dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 12 | OUTx (x=1–4) | Amplifier output terminals - each capable of ±35mA drive; require series RNULL ≥20Ω for >10pF capacitive loads to prevent oscillation. |
| 2, 6, 10, 15 | IN−x (x=1–4) | Inverting inputs - CMOS inputs with 2.5pA bias current; sensitive to ESD; require guarding in high-Z sensor paths. |
| 3, 7, 11, 14 | SHDNx (x=1–4) | Individual channel shutdown controls - logic-low (≤0.8V) disables amplifier; high-impedance during shutdown prevents loading of control logic. |
| 4, 8, 13, 16 | IN+x (x=1–4) | Non-inverting inputs - rail-to-rail common-mode range (0V to VDD); enable true single-supply operation with ground-referenced sensors. |
| 16 | VDD | Positive supply - must be decoupled with 0.1μF ceramic capacitor within 5mm of pin; supports 2.7–6V operation. |
| 8 | GND | Analog ground - shared reference for all channels; requires low-impedance connection to PCB ground plane to minimize crosstalk. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 3V systems - e.g., 0–3V sensor output mapped directly to 0–3V ADC input without level-shifting. |
| Ultra-low shutdown current (1000nA/ch @ 5V) | Permits microcontroller-gated operation in wake-on-event architectures - 4-channel shutdown draws less than most MCU RTC circuits. |
| High output drive (±35mA @ 500mV from rail) | Eliminates need for external buffer transistors when driving 10kΩ DAC references or multiple parallel ADC inputs. |
| 2.5pA input bias current | Reduces offset error to <250μV in 1GΩ thermistor measurement circuits - avoids costly chopper-stabilized alternatives. |
| 2.8MHz GBW with 1.5V/μs slew rate | Supports stable closed-loop gain ≥100 at 20kHz - suitable for ultrasound preamp stages and active low-pass filters with <1% group delay variation. |
Applications
| Portable ECG Monitor Front-End | Multi-Sensor IoT Node Signal Chain |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in a handheld ECG device powered by a 3.7V Li-ion cell. IC Role / Device Role / Timing Role: Quad op-amp configured as 4× instrumentation amp preamp (INA128 alternative), 1× right-leg drive, 1× lead-off detection, and 1× reference buffer - all sharing single TLV2475CPWP. Use Value: Rail-to-rail I/O preserves 3.3V ADC full scale; 2.5pA bias current prevents electrode polarization errors; shutdown cuts system standby current by 92%. |
Use Scenario: Conditioning analog outputs from temperature, humidity, and gas sensors in a battery-operated environmental sensor node. IC Role / Device Role / Timing Role: Simultaneous signal conditioning for 4 independent sensors - each channel provides PGA gain, anti-alias filtering, and drive capability for 10kΩ ADC input impedance. Use Value: 600μA/channel active current enables >1-year battery life at 1Hz sampling; individual SHDN pins allow per-sensor power gating. |
| Low-Power Medical Pulse Oximeter | Industrial 4–20mA Loop Receiver |
Use Scenario: Driving red/IR LED emitters and amplifying photodiode currents in a wearable SpO₂ monitor using coin-cell power. IC Role / Device Role / Timing Role: Two channels serve as transimpedance amplifiers for photodiode current conversion; two channels provide LED current source control and reference buffering. Use Value: ±35mA output drive enables direct LED current sourcing without external FETs; shutdown mode extends coin-cell life beyond 6 months. |
Use Scenario: Converting 4–20mA loop current to 0–5V for PLC analog input modules operating from 24V industrial supplies. IC Role / Device Role / Timing Role: Precision I-to-V conversion (R = 250Ω) followed by rail-to-rail output buffering into ADC driver stage - all within one quad package. Use Value: 250μV offset ensures <0.01% FSR error in 16-bit systems; 2.7–6V supply range allows direct use of internal 5V LDO output. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2475IPWP | Same electrical specs but rated for –40°C to +125°C industrial temp range vs. TLV2475CPWP's 0°C to +70°C. | Suitable for under-hood automotive or factory-floor equipment where ambient exceeds 70°C. | Select TLV2475IPWP when extended temperature operation is required; otherwise TLV2475CPWP offers cost advantage for commercial-grade devices. |
| OPA4340UA | Higher 5.5MHz GBW and lower 15μV offset, but 750μA/channel supply current and no shutdown function. | Better for high-speed precision applications (e.g., active filters >100kHz) where power gating is handled externally. | Choose OPA4340UA only if 2.8MHz GBW is insufficient and shutdown is unnecessary; TLV2475CPWP remains optimal for battery-constrained designs. |
Compared with TLV2475IPWP, the TLV2475CPWP trades extended temperature rating for lower cost in commercial environments; compared with OPA4340UA, it sacrifices bandwidth and offset precision to achieve 40% lower active current and integrated shutdown - making it superior for energy-critical portable instrumentation.
Availability
TLV2475CPWP is available at Aetrix Electronics and suitable for portable medical devices, battery-powered sensor nodes, and industrial loop receivers requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TLV2475CPWP 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 50 years of innovation in precision amplifiers and low-power signal chain solutions.
The TLV247x family was designed specifically for ultra-low-power, rail-to-rail signal conditioning in single-supply portable instrumentation - addressing the trade-off between micropower consumption and usable AC performance in space-constrained designs.
FAQ
What is the maximum capacitive load the TLV2475CPWP can drive without instability?
The TLV2475CPWP becomes unstable with capacitive loads exceeding 10pF when connected directly to the output. To maintain phase margin >60°, Texas Instruments specifies adding a series null resistor (RNULL) between the output pin and the load. A minimum value of 20Ω is recommended for most applications, with optimal values ranging from 20Ω to 100Ω depending on load capacitance and closed-loop gain. This requirement is documented in Figure 42 of the TLV2475CPWP datasheet.
Does the TLV2475CPWP support true single-supply operation down to 2.7V?
Yes, the TLV2475CPWP fully supports true single-supply operation from 2.7V to 6V. Its rail-to-rail input common-mode range extends from 0V to VDD, and its output swings to within 180mV of both rails under 10mA load. At 2.7V supply, this delivers usable output range of 0.18V to 2.52V - sufficient for interfacing with 12-bit ADCs having 2.5V reference. All electrical characteristics in the datasheet are specified at 3V and 5V, confirming robust 2.7V functionality.
How does the shutdown feature work on the TLV2475CPWP, and what happens to the output pins?
The TLV2475CPWP has four independent shutdown pins (pins 3, 7, 11, 14) - one per amplifier channel. Driving any SHDN pin low (≤0.8V) places its corresponding amplifier into shutdown mode, reducing supply current to 1000nA/channel at 5V and forcing the output into high-impedance state. Outputs remain floating - not clamped or shorted - allowing safe multiplexing or sharing of output nodes. The shutdown transition times are 5μs turn-on and 250ns turn-off, as measured from SHDN logic edge to 50% supply current change.
Can the TLV2475CPWP be used in inverting amplifier configurations with gain >100?
Yes, the TLV2475CPWP supports stable inverting configurations with gain up to 100 at 20kHz, based on its 2.8MHz gain-bandwidth product and measured phase margin of 68° at 5V with 1000pF load. For gains >100, stability depends on layout and compensation: use low-inductance feedback resistors (<1kΩ), minimize parasitic capacitance at the inverting input, and consider adding a small feedback capacitor (1–3pF) across RF to control peaking. The datasheet's Figure 17 confirms stable differential gain response up to 1MHz in unity-gain follower mode.
What is the input offset voltage drift over temperature for the TLV2475CPWP?
The TLV2475CPWP has a temperature coefficient of input offset voltage (αVIO) of 0.4μV/°C, as specified in the Electrical Characteristics table. Over the full operating range of 0°C to +70°C, this results in a maximum offset drift of 28μV (70°C × 0.4μV/°C) added to the initial 250μV typical offset. The datasheet confirms this parameter is tested and guaranteed across temperature, making the TLV2475CPWP suitable for applications requiring <100μV total offset variation - such as precision weigh scales and medical thermometry front-ends.
TLV2475CPWP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-HTSSOP
TLV2475CPWP FAQ
1.How can I place an order for TLV2475CPWP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2475CPWP 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 TLV2475CPWP reliable?
The price and inventory of TLV2475CPWP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2475CPWP is usually 5 days.
3.What payment methods are accepted for TLV2475CPWP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2475CPWP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2475CPWP?
TLV2475CPWP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2475CPWP 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 TLV2475CPWP?
For technical support, including TLV2475CPWP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2475CPWP requirements.
6.How does Aetrix verify that TLV2475CPWP is sourced from the original manufacturer or authorized distributors?
All TLV2475CPWP 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 TLV2475CPWP meets industry standards.
7.What is the process for return or replacement of TLV2475CPWP?
All TLV2475CPWP units undergo pre-shipment inspection (PSI). If there is an issue with TLV2475CPWP, 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 TLV2475CPWP part is unused and in its original packaging.
Return procedure for TLV2475CPWP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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