My Inquiry
My Account
Texas Instruments TLV2785CD
- Part No.:
- TLV2785CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2785CD.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:520
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV2785CD 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, 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 sensor front-ends and portable medical devices.
For engineers reviewing the TLV2785CD datasheet, TLV2785CD pinout, TLV2785CD application, or TLV2785CD equivalent, this page provides verified circuit role (quad precision op-amp), validated package mapping (TSSOP-16), confirmed shutdown functionality, exact rail-to-rail I/O behavior, and real-world design implications for low-noise, low-supply-voltage analog signal chains.
Technical Context
The TLV2785CD 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 full-scale signal handling in single-supply systems. Its 8 MHz unity-gain bandwidth and 58° phase margin at 2 kΩ/25 pF load ensure stable operation in closed-loop configurations up to 1 MHz.
Each channel draws only 650 µA supply current and features independent shutdown control (pins 1/2SHDN and 3/4SHDN), reducing quiescent current to 900 nA per channel when disabled. Input bias current is 2.5 pA typical, enabling high-impedance source interfacing without significant offset error.
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 unity-gain buffers and 2nd-order active filters up to ~1 MHz. |
| Slew Rate | 4.8 V/µs at VDD = 2.7 V - supports 12-bit DAC output settling within 2.4 µs (0.01% error). |
| Input Noise Voltage | 9 nV/√Hz at 10 kHz - preserves SNR in audio preamps and sensor amplifiers with <100 kΩ source impedance. |
| Input Offset Voltage | 3000 µV max (C-grade, 25°C) - requires calibration or trimming for sub-mV DC accuracy. |
| Shutdown Current | 900 nA per channel - extends battery life in intermittent-sampling systems like portable ECG monitors. |
| Rail-to-Rail I/O | Yes - allows full dynamic range utilization with single-supply ADC drivers (e.g., ADS7822, ADS8320). |
Pinout & Package
TSSOP-16 package (PW suffix), 5.0 mm × 4.4 mm × 1.2 mm body, 0.65 mm pitch, exposed pad optional for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 10, 16 | OUT (1OUT, 2OUT, 3OUT, 4OUT) | Amplifier output terminals; rail-to-rail swing, ±10 mA drive capability. |
| 2, 6, 9, 13 | IN− (1IN−, 2IN−, 3IN−, 4IN−) | Inverting inputs; high-impedance CMOS node (2.5 pA bias current). |
| 3, 5, 12, 14 | IN+ (1IN+, 2IN+, 3IN+, 4IN+) | Non-inverting inputs; common-mode range extends 0.2 V beyond rails. |
| 4 | GND | Analog ground reference; must be connected to low-impedance PCB ground plane. |
| 8 | VDD | Positive supply rail; decoupling required (0.1 µF ceramic + 6.8 µF tantalum). |
| 1/2SHDN (Pin 15) | Channel 1 & 2 Shutdown Control | Logic-high enables channels 1/2; logic-low disables them (900 nA IQ per channel). |
| 3/4SHDN (Pin 11) | Channel 3 & 4 Shutdown Control | Independent enable/disable for channels 3/4; no cross-talk between shutdown groups. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal swing in 1.8 V systems - eliminates need for level-shifting or dual supplies. |
| 8 MHz bandwidth at 650 µA/channel | Delivers >10× higher speed-per-power than legacy micropower op-amps (e.g., TLC27L4), enabling faster sampling. |
| 9 nV/√Hz input voltage noise @10 kHz | Supports 16-bit effective resolution in 100 kSPS data loggers with <10 kΩ sensor impedance. |
| Dual independent shutdown controls | Allows selective power gating of amplifier pairs - critical for multi-channel portable instrumentation with duty-cycled sensors. |
| −40°C to 125°C operation (I-grade variants available) | Validated performance across automotive cabin and industrial control temperature ranges without derating. |
Applications
| Portable Medical Sensors | Low-Voltage Data Acquisition |
|---|---|
|
Use Scenario: Amplifying microvolt-level EEG or ECG signals from dry electrodes in handheld neuro-monitoring devices. IC Role / Device Role / Timing Role: Quad-channel precision instrumentation amplifier front-end with independent shutdown per pair to manage power during idle periods. Use Value: 9 nV/√Hz noise floor preserves signal integrity; rail-to-rail I/O maximizes ADC dynamic range from 1.8 V supply. |
Use Scenario: Driving SAR ADC inputs in battery-powered environmental sensor nodes (temperature, humidity, gas). IC Role / Device Role / Timing Role: Buffer and level-shift analog sensor outputs to match ADC reference voltage while minimizing power. Use Value: 650 µA/channel supply current extends 10-year battery life; 8 MHz GBW ensures <1 µs settling for 1 MSPS sampling. |
| Industrial Process Monitoring | Audio Line Drivers |
|
Use Scenario: Conditioning 4–20 mA loop transmitter outputs in smart field transmitters operating at 3.3 V. IC Role / Device Role / Timing Role: Precision voltage-to-current converter interface with rail-to-rail output compliance to 0–3.3 V range. Use Value: 3000 µV max VIO enables <0.1% FSR accuracy after one-point calibration; shutdown reduces standby power to <1 µA total. |
Use Scenario: Single-supply headphone driver in portable media players using 1.8 V logic supply. IC Role / Device Role / Timing Role: Dual-channel AC-coupled line driver with shutdown for mute function and power savings. Use Value: 4.8 V/µs slew rate prevents THD+noise degradation at 20 kHz; rail-to-rail output delivers >1.5 VPP into 32 Ω loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2785ID | Same electrical specs, −40°C to 125°C extended temperature grade. | Required for under-hood automotive or industrial control environments. | Select TLV2785ID when operating ambient exceeds 70°C or long-term reliability at temperature extremes is mandated. |
| OPA4340UA | Higher precision (125 µV VIO max), lower noise (7 nV/√Hz), but 1.2 mA/channel supply current. | Better DC accuracy and noise performance at cost of 85% higher quiescent power. | Choose OPA4340UA only when sub-200 µV offset and <8 nV/√Hz noise are mandatory and battery life is secondary. |
Compared with TLV2785CD, TLV2785ID offers identical functionality with guaranteed operation over −40°C to 125°C, while OPA4340UA trades 85% higher supply current for 25× lower input offset and marginally better noise - making TLV2785CD optimal for cost- and power-sensitive portable instrumentation where ±3 mV offset is acceptable.
Availability
TLV2785CD is available at Aetrix Electronics and suitable for portable medical devices, low-voltage data acquisition systems, and industrial process monitoring requiring stable component supply with commercial-grade temperature support (0°C to 70°C).
Supply support for TLV2785CD 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 TLV278x family was designed specifically for ultra-low-voltage, rail-to-rail precision amplification in battery-powered and energy-constrained systems - targeting portable instrumentation, sensor interfaces, and medical electronics.
FAQ
What is the maximum recommended supply voltage for TLV2785CD?
The absolute maximum supply voltage for TLV2785CD is 4 V, but the recommended operating range is strictly 1.8 V to 3.6 V per the datasheet. Exceeding 3.6 V risks parametric shift and reduced reliability; operation at 3.6 V is fully characterized and supports rail-to-rail output swing up to 3.55 V (VOL = 0.05 V).
Does TLV2785CD support true rail-to-rail input common-mode range?
Yes - TLV2785CD supports a common-mode input voltage range from −0.2 V to VDD+0.2 V, verified across 1.8 V to 3.6 V supply and 0°C to 70°C temperature. This allows direct interfacing with sensors or DACs whose outputs swing below ground or above VDD, such as current-sense amplifiers or unbuffered DACs.
How does the shutdown function operate on TLV2785CD?
TLV2785CD has two independent shutdown pins: Pin 15 (1/2SHDN) controls channels 1 and 2; Pin 11 (3/4SHDN) controls channels 3 and 4. Pulling either pin low disables its associated pair, reducing supply current to 900 nA per channel and placing outputs in high-impedance state. Leaving pins floating enables all channels.
What is the typical input bias current of TLV2785CD?
The typical input bias current of TLV2785CD is 2.5 pA at 25°C, with a maximum of 100 pA over the full 0°C to 70°C commercial temperature range. This ultra-low bias enables use with high-impedance sources (e.g., piezoelectric sensors, pH electrodes) without significant voltage drop or offset error.
Can TLV2785CD drive capacitive loads directly?
TLV2785CD is stable with ≤10 pF capacitive load at unity gain. For larger loads (e.g., ADC input capacitance >10 pF), a series resistor (RNULL) of 10–50 Ω must be placed between the amplifier output and the load to maintain ≥58° phase margin and prevent ringing - as specified in Figure 30 of the SLOS245E datasheet.
TLV2785CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
TLV2785CD FAQ
1.How can I place an order for TLV2785CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2785CD 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 TLV2785CD reliable?
The price and inventory of TLV2785CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2785CD is usually 5 days.
3.What payment methods are accepted for TLV2785CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2785CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2785CD?
TLV2785CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2785CD 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 TLV2785CD?
For technical support, including TLV2785CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2785CD requirements.
6.How does Aetrix verify that TLV2785CD is sourced from the original manufacturer or authorized distributors?
All TLV2785CD 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 TLV2785CD meets industry standards.
7.What is the process for return or replacement of TLV2785CD?
All TLV2785CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2785CD, 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 TLV2785CD part is unused and in its original packaging.
Return procedure for TLV2785CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2785CD Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
