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Texas Instruments TLV2785ID
- Part No.:
- TLV2785ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2785ID.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,251
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Product details
Overview
TLV2785ID from Texas Instruments is a quad rail-to-rail input/output operational amplifier optimized for low-voltage, low-power precision signal conditioning in battery-powered systems. It operates from 1.8 V to 3.6 V, 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 and sensor front-end amplification in portable instrumentation.
For engineers reviewing the TLV2785ID datasheet, TLV2785ID pinout, TLV2785ID application, or TLV2785ID equivalent, this page provides verified electrical specifications, industrial-grade (−40°C to 125°C) thermal behavior, TSSOP-16 package layout guidance, shutdown timing characteristics, and validated alternatives for multi-channel low-noise op-amp selection.
Technical Context
The TLV2785ID implements a CMOS input stage with rail-to-rail common-mode input 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 supply current. Its internal architecture includes independent shutdown control for channels 1/2 and 3/4, enabling dynamic power management in multi-stage analog signal chains.
It features 2.5 pA typical input bias current, 250 µV max input offset voltage (A-grade), and 58° phase margin into 2 kΩ//25 pF loads - ensuring stable unity-gain follower 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 two-cell Li-ion or NiMH battery operation without regulation |
| Gain-Bandwidth Product | 8 MHz - enables stable closed-loop gain ≥10 up to 800 kHz with 2 kΩ load |
| Slew Rate | 4.8 V/µs at VDD = 2.7 V - supports 1 VPP signals up to ~760 kHz without distortion |
| Input Noise Voltage | 9 nV/√Hz at 10 kHz - suitable for low-level sensor amplification with <0.5% added noise floor |
| Supply Current per Channel | 650 µA - draws only 2.6 mA total for all four amplifiers at 25°C |
| Input Offset Voltage | 250 µV max (A-grade) - ensures ≤1 mV output error in unity-gain buffer with 4 V output span |
| Operating Temperature | −40°C to 125°C - qualified for under-hood automotive and industrial motor control environments |
| Shutdown Current | 900 nA per channel - reduces total quiescent draw to <3.6 µA when fully disabled |
Pinout & Package
TSSOP-16 package with 0.65 mm pitch, 5.0 mm × 4.4 mm body, and exposed pad for thermal enhancement (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 10, 16 | Output | Amplifier outputs 1–4; rail-to-rail swing supports full 0–VDD dynamic range |
| 2, 6, 9, 13 | Inverting Input | Differential inputs with 2.5 pA bias current; matched layout critical for low offset |
| 3, 5, 12, 14 | Non-inverting Input | Rail-to-rail common-mode range (−0.2 V to VDD+0.2 V) enables ground-referenced sensing |
| 4 | GND | Analog ground reference; requires low-impedance connection to PCB ground plane |
| 8 | VDD | Positive supply; decoupling with 0.1 µF ceramic + 6.8 µF tantalum required |
| 11, 15 | Shutdown Control | Logic-controlled enable/disable for channels 1/2 (pin 11) and 3/4 (pin 15); VIH = 2 V, VIL = 0.6 V |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail I/O | Enables full-scale signal buffering and amplification from 0 V to VDD without level-shifting circuitry |
| Low 1.8 V Operation | Permits direct interface with ultra-low-power MCUs and ADCs powered from single LiFePO₄ cells |
| 8 MHz Bandwidth @ 650 µA | Delivers >10× higher speed than comparable micropower op-amps (e.g., TLV246x) at same current |
| Independent Dual Shutdown | Allows selective disabling of channel pairs to reduce system power by >99% during idle periods |
| Industrial Temp Range | Guaranteed AC/DC performance over −40°C to 125°C without derating or thermal compensation |
| Low 9 nV/√Hz Noise | Preserves SNR in 16-bit+ SAR ADC front-ends where amplifier noise dominates quantization error |
Applications
| Portable Medical Sensors | Automotive Cabin Pressure Monitoring |
|---|---|
Use Scenario: Amplifying microvolt-level output from piezoresistive pressure transducers in handheld blood pressure cuffs. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier stage with gain = 1000, driving 16-bit SAR ADC. Use Value: 250 µV max VIO and 9 nV/√Hz noise ensure <0.1% measurement error across 0–300 mmHg range at 1.8 V supply. | Use Scenario: Signal conditioning for cabin air pressure sensors in HVAC control modules. IC Role / Device Role / Timing Role: Rail-to-rail buffer and anti-aliasing filter driver for 12-bit delta-sigma ADC sampling at 1 kHz. Use Value: −40°C to 125°C operation and 8 MHz GBW support stable 2-pole Sallen-Key filtering with <0.01% THD+N. |
| Industrial 4–20 mA Loop Receivers | Battery-Powered Data Loggers |
Use Scenario: Converting loop current to ground-referenced voltage in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Low-drift I/V converter with 250 Ω shunt, followed by rail-to-rail output stage driving ADC reference buffer. Use Value: 2.5 pA input bias current minimizes shunt resistor error; 650 µA/channel enables 4-channel design within 5 mA total budget. | Use Scenario: Front-end amplification for thermistor and RTD measurements in remote environmental monitoring nodes. IC Role / Device Role / Timing Role: Low-power sensor interface with programmable gain and shutdown between 10-second sampling intervals. Use Value: 900 nA shutdown current extends 2×AA battery life to >5 years; 1.8 V operation eliminates need for LDO regulator. |
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 |
|---|---|---|---|
| TLV2785IPW | TSSOP-16 (same pinout) vs PDIP-16; 114.7°C/W θJA vs 78°C/W; no exposed pad | Requires different PCB footprint and thermal relief; lower power dissipation capability at high ambient | Select TLV2785IPW only for through-hole prototyping or legacy board reuse where TSSOP reflow is unavailable |
| OPA2333P | Zero-drift architecture; 0.02 µV/°C drift vs 8 µV/°C; 17 µV max VIO vs 250 µV; 350 µA/channel vs 650 µA | Superior DC accuracy but lower bandwidth (350 kHz) and higher cost; not suitable for >100 kHz signal paths | Choose OPA2333P when µV-level offset stability dominates over speed and power; avoid for active filter or fast-settling applications |
Compared with TLV2785IPW, the TLV2785ID offers superior thermal performance in surface-mount layouts and smaller PCB area; versus OPA2333P, it trades DC precision for 23× higher bandwidth and 1.8× higher supply current efficiency in AC-coupled sensor interfaces.
Availability
TLV2785ID is available at Aetrix Electronics and suitable for portable medical devices, automotive cabin electronics, industrial 4–20 mA receivers, and battery-powered data loggers requiring stable component supply across extended temperature ranges.
Supply support for TLV2785ID 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The TLV278x family was engineered for ultra-low-voltage, rail-to-rail precision amplification in space-constrained, battery-operated systems - emphasizing simultaneous optimization of bandwidth, noise, power, and temperature robustness.
FAQ
What is the maximum capacitive load the TLV2785ID can drive without instability?
The TLV2785ID maintains 58° phase margin with 2 kΩ//25 pF loads. For capacitive loads >10 pF, TI recommends adding a series null resistor (RNULL) between amplifier output and load capacitance - typically 10–50 Ω - to restore stability. This is documented in Figure 30 of the SLOS245E datasheet. The TLV2785ID itself does not integrate isolation resistance; external compensation is required for direct C-load driving.
Does the TLV2785ID support true rail-to-rail input at 1.8 V supply?
Yes. The TLV2785ID guarantees rail-to-rail input common-mode range from −0.2 V to VDD+0.2 V across its full operating temperature range. At VDD = 1.8 V, this means inputs function correctly from −0.2 V to 2.0 V - enabling ground-referenced sensor interfaces and level-shifting-free signal routing. This is confirmed in the "Recommended Operating Conditions" table on page 4 of the SLOS245E datasheet.
How does the shutdown function operate on the TLV2785ID?
The TLV2785ID has two independent shutdown pins: pin 11 controls channels 1 and 2; pin 15 controls channels 3 and 4. Driving either pin below 0.6 V disables the corresponding pair, reducing supply current to 900 nA per channel and placing outputs in high-impedance state. Pins may be left floating (internal pull-up enables) or tied to VDD. Turn-on/turn-off times are 800 ns and 200 ns respectively, as specified in the "Shutdown Characteristics" table on page 7 of SLOS245E.
What is the input bias current specification for TLV2785ID at 125°C?
At −40°C to 125°C full industrial range, the TLV2785ID specifies maximum input bias current of 300 pA (per input), as stated in the "Input Characteristics" table on page 5 of SLOS245E. This value applies to both inverting and non-inverting inputs and remains stable across temperature - critical for high-impedance source interfacing such as photodiode transimpedance stages or high-value resistor dividers.
Can TLV2785ID be used in unity-gain stable configurations?
Yes. The TLV2785ID is explicitly characterized for unity-gain stability with 2 kΩ resistive load and 25 pF capacitive load, achieving 58° phase margin and 8 dB gain margin per Figure 13 and the "Dynamic Performance" table on page 7 of SLOS245E. No external compensation is required for standard unity-gain follower, inverter, or non-inverting amplifier configurations - making it suitable for precision buffering and active filtering without added components.
TLV2785ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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-SOIC
TLV2785ID FAQ
1.How can I place an order for TLV2785ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2785ID 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 TLV2785ID reliable?
The price and inventory of TLV2785ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2785ID is usually 5 days.
3.What payment methods are accepted for TLV2785ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2785ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2785ID?
TLV2785ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2785ID 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 TLV2785ID?
For technical support, including TLV2785ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2785ID requirements.
6.How does Aetrix verify that TLV2785ID is sourced from the original manufacturer or authorized distributors?
All TLV2785ID 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 TLV2785ID meets industry standards.
7.What is the process for return or replacement of TLV2785ID?
All TLV2785ID units undergo pre-shipment inspection (PSI). If there is an issue with TLV2785ID, 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 TLV2785ID part is unused and in its original packaging.
Return procedure for TLV2785ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2785ID Tags
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LM358DT
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LM358DR
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