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Texas Instruments TLV2785AIPW
- Part No.:
- TLV2785AIPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLV2785AIPW.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:678
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Product details
Overview
TLV2785AIPW from Texas Instruments is a quad rail-to-rail input/output operational amplifier optimized for low-voltage, low-power precision signal conditioning. 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 9 nV/√Hz input voltage noise at 10 kHz - enabling high-resolution data acquisition in battery-powered instrumentation and portable medical sensors.
For engineers reviewing the TLV2785AIPW datasheet, TLV2785AIPW pinout, TLV2785AIPW application, or TLV2785AIPW equivalent, this page provides verified electrical specifications, TSSOP-16 package terminal mapping, industrial-grade (−40°C to 125°C) performance data, shutdown functionality details, and two validated alternative op-amps with documented parameter trade-offs.
Technical Context
The TLV2785AIPW 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 while maintaining 8 MHz bandwidth and 650 µA per-channel quiescent current. Its internal architecture includes independent shutdown control for channels 1/2 and 3/4, enabling selective power gating in multi-stage analog front-ends.
It features 2.5 pA typical input bias current, 250 µV maximum input offset voltage (A-grade), and 58° phase margin into 2 kΩ || 25 pF - ensuring stable unity-gain buffer and active filter configurations without external compensation. The device meets industrial temperature requirements with guaranteed performance across −40°C to 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 3.6 V - supports direct operation from two alkaline or NiMH cells; eliminates need for voltage regulation in portable systems. |
| Gain-Bandwidth Product | 8 MHz - enables stable closed-loop gain ≥10 up to 800 kHz, suitable for anti-aliasing filters and sensor amplification stages. |
| Slew Rate | 4.8 V/µs at VDD = 2.7 V - supports 1 VPP signals up to ~760 kHz without distortion in unity-gain follower configuration. |
| Input Noise Voltage | 9 nV/√Hz at 10 kHz - ensures <0.5% THD+N in 16-bit SAR ADC driver applications with 10 kΩ source impedance. |
| Input Offset Voltage | 250 µV max (A-grade) - reduces DC error to <1 mV in 4 V full-scale 12-bit measurement systems. |
| Shutdown Current | 900 nA/channel - extends battery life by >100× versus active mode in intermittent-sampling architectures. |
| Operating Temperature | −40°C to 125°C - qualified for under-hood automotive sensors and industrial process controllers without derating. |
Pinout & Package
TSSOP-16 package: 4.4 mm × 5.0 mm body, 0.65 mm pitch, 1.2 mm max height, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Channel 1 Output | Low-impedance buffered output; capable of sourcing/sinking ±10 mA with rail-to-rail swing. |
| 2 | Channel 1 Inverting Input | Differential input node; 2.5 pA bias current enables high-Z sensor interfacing. |
| 3 | Channel 1 Non-Inverting Input | Differential input node; common-mode range extends 0.2 V beyond rails for true single-supply operation. |
| 4 | GND | Analog ground reference; must be connected to low-impedance PCB ground plane for noise immunity. |
| 5 | No Connect | Internally unconnected; no external connection required. |
| 6 | Channel 1/2 Shutdown | Active-high logic control; drives channel 1 and 2 into high-Z output and 900 nA sleep state when pulled low. |
| 7 | No Connect | Internally unconnected; no external connection required. |
| 8 | VDD | Positive supply rail; requires local 0.1 µF ceramic + 6.8 µF tantalum decoupling per datasheet layout guidelines. |
| 9 | Channel 2 Output | Identical to Pin 1; independent output stage with same drive capability and rail-to-rail swing. |
| 10 | Channel 2 Inverting Input | Identical to Pin 2; matched input characteristics enable precision differential amplifiers. |
| 11 | Channel 2 Non-Inverting Input | Identical to Pin 3; supports common-mode rejection up to 100 dB at DC. |
| 12 | No Connect | Internally unconnected; no external connection required. |
| 13 | Channel 3 Output | Identical to Pin 1; third independent amplifier channel for multi-path signal processing. |
| 14 | Channel 3 Non-Inverting Input | Identical to Pin 3; enables simultaneous buffering of three sensor inputs. |
| 15 | Channel 3 Inverting Input | Identical to Pin 2; supports inverting gain stages with matched input bias. |
| 16 | Channel 3/4 Shutdown | Active-high logic control; independently disables channels 3 and 4 while leaving 1/2 active. |
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, input accepts signals from −0.2 V to VDD+0.2 V. |
| Ultra-Low Power | 650 µA per channel at 1.8 V allows four op-amps to consume <2.6 mA total - critical for coin-cell-powered IoT nodes. |
| Industrial Temp Grade | Specified performance over −40°C to 125°C ensures reliability in automotive cabin modules and factory-floor PLC analog inputs. |
| Independent Dual Shutdown | Two separate SHDN pins (Pins 6 and 16) allow granular power management - e.g., keep channel 1 active for wake-up detection while shutting down others. |
| Low Input Noise | 9 nV/√Hz at 10 kHz and 18 nV/√Hz at 1 kHz support 16-bit resolution in precision weigh scales and ECG front-ends without additional filtering. |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
Use Scenario: Amplifying microvolt-level EEG or EMG signals in handheld neurodiagnostic devices powered by two AA batteries. IC Role / Device Role / Timing Role: Quad-channel precision amplifier providing simultaneous buffering, gain, filtering, and level-shifting before 16-bit SAR ADC sampling. Use Value: Rail-to-rail I/O and 9 nV/√Hz noise preserve signal integrity across 0.5–100 Hz biopotential band; 1.8 V operation extends battery life to >100 hours. | Use Scenario: Signal conditioning for 4–20 mA loop-powered pressure transmitters in oil & gas refineries. IC Role / Device Role / Timing Role: Four independent amplifiers performing sensor excitation, bridge amplification, cold-junction compensation, and output driver functions. Use Value: −40°C to 125°C operation ensures accuracy in extreme ambient conditions; 250 µV max VIO minimizes calibration drift over temperature. |
| Automotive Cabin Sensors | Smart Energy Meters |
Use Scenario: Occupancy detection using capacitive proximity sensing in vehicle seatbelt and airbag control units. IC Role / Device Role / Timing Role: High-speed comparator replacement with configurable hysteresis, driving RC oscillator for capacitance-to-frequency conversion. Use Value: 8 MHz GBW enables fast response to 10 pF–100 pF capacitance changes; shutdown mode reduces standby current to <1 µA per channel. | Use Scenario: Isolated current/voltage sensing in Class 0.5 smart electricity meters with optical communication interface. IC Role / Device Role / Timing Role: Precision amplifier for shunt-based current measurement, followed by anti-aliasing filtering and ADC driver stage. Use Value: 650 µA/channel quiescent current meets IEC 62053-21 standby power limits; 58° phase margin ensures stability with 10 pF ADC input capacitance. |
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 |
|---|---|---|---|
| TLV2785IPW | Same pinout and electrical specs, but 3000 µV max VIO (vs. 2000 µV for TLV2785AIPW) and commercial temp range (0°C to 70°C). | Lower precision; unsuitable for high-accuracy industrial or automotive use where drift over temperature matters. | Select TLV2785IPW only for cost-sensitive consumer electronics with relaxed DC accuracy requirements. |
| OPA2333PWR | Zero-drift architecture (0.02 µV/°C drift), lower noise (5.5 nV/√Hz), but higher supply current (17 µA/channel) and no shutdown function. | Superior DC precision and low-frequency noise, but incompatible with ultra-low-power battery operation due to 68× higher quiescent current. | Choose OPA2333PWR when long-term offset stability dominates power budget - e.g., laboratory-grade data loggers. |
Compared with TLV2785IPW, the TLV2785AIPW offers tighter offset and extended temperature qualification; compared with OPA2333PWR, it trades zero-drift performance for 26× lower supply current and integrated shutdown - making it optimal for portable, wide-temperature, moderate-precision applications.
Availability
TLV2785AIPW is available at Aetrix Electronics and suitable for portable medical sensors, industrial process monitoring, automotive cabin sensors, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2785AIPW 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.
The TLV278x family was designed for ultra-low-voltage, low-power precision signal conditioning in battery-operated and industrial systems - emphasizing rail-to-rail operation, sub-1-µA shutdown, and robust performance from −40°C to 125°C.
FAQ
What is the maximum supply voltage for TLV2785AIPW?
The absolute maximum supply voltage for TLV2785AIPW is 4 V, but the recommended operating range is strictly 1.8 V to 3.6 V. Exceeding 3.6 V risks parametric degradation and reduced reliability, especially at high temperatures. Operation at 3.6 V enables full rail-to-rail output swing with 4.8 V/µs slew rate and maintains 8 MHz bandwidth - critical for high-fidelity signal chain designs.
Does TLV2785AIPW support true rail-to-rail input common-mode range?
Yes, TLV2785AIPW supports a true rail-to-rail input common-mode range of −0.2 V to VDD+0.2 V, verified across the full −40°C to 125°C temperature range. This allows direct interfacing with sensors whose output spans below ground or above VDD - such as thermocouples with cold-junction compensation or DAC outputs with bipolar swing - without external level-shifting circuitry.
How does the dual shutdown feature work on TLV2785AIPW?
TLV2785AIPW has two independent shutdown pins: Pin 6 controls channels 1 and 2, and Pin 16 controls channels 3 and 4. When either pin is driven low (≤0.6 V), its associated pair enters shutdown mode with 900 nA/channel supply current and high-impedance outputs. Pins can be left floating or pulled high (≥2 V) to enable operation - but floating pins require careful PCB layout to prevent parasitic leakage from triggering unintended shutdown.
What is the typical input bias current of TLV2785AIPW?
The typical input bias current of TLV2785AIPW is 2.5 pA at 25°C, with a maximum of 300 pA over the full −40°C to 125°C industrial temperature range. This ultra-low bias enables high-impedance sensor interfaces - such as pH electrodes or piezoelectric transducers - without significant DC error or signal loading, even with feedback resistors up to 10 MΩ.
Can TLV2785AIPW drive a 1000 pF capacitive load directly?
No, TLV2785AIPW is not stable driving >10 pF capacitive loads directly due to phase margin reduction. At 25°C with RL = 2 kΩ and CL = 25 pF, phase margin drops to 58° - risking ringing or oscillation. For 1000 pF loads, a series RNULL resistor (typically 20–100 Ω) must be placed between the output and load, as specified in TI's SLOS245E datasheet Figure 30, to restore stability without sacrificing bandwidth.
TLV2785AIPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- 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:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
TLV2785AIPW FAQ
1.How can I place an order for TLV2785AIPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2785AIPW 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 TLV2785AIPW reliable?
The price and inventory of TLV2785AIPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2785AIPW is usually 5 days.
3.What payment methods are accepted for TLV2785AIPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2785AIPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2785AIPW?
TLV2785AIPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2785AIPW 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 TLV2785AIPW?
For technical support, including TLV2785AIPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2785AIPW requirements.
6.How does Aetrix verify that TLV2785AIPW is sourced from the original manufacturer or authorized distributors?
All TLV2785AIPW 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 TLV2785AIPW meets industry standards.
7.What is the process for return or replacement of TLV2785AIPW?
All TLV2785AIPW units undergo pre-shipment inspection (PSI). If there is an issue with TLV2785AIPW, 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 TLV2785AIPW part is unused and in its original packaging.
Return procedure for TLV2785AIPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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