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Texas Instruments TLV2765CD
- Part No.:
- TLV2765CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2765CD.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,155
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Product details
Overview
TLV2765CD from Texas Instruments is a quad-channel, 1.8 V micropower rail-to-rail input/output operational amplifier with individual shutdown control per channel, specified for 0°C to 70°C operation, featuring 20 μA per-channel supply current, 500 kHz unity-gain bandwidth, and 10 nA shutdown current - ideal for battery-powered sensor signal conditioning in portable medical devices.
For engineers reviewing the TLV2765CD datasheet, TLV2765CD pinout, TLV2765CD application, or TLV2765CD equivalent, this page delivers verified electrical parameters, TSSOP-16 package mapping, real-world use cases in low-voltage analog front-ends, and two validated alternative op-amps with documented functional trade-offs.
Technical Context
The TLV2765CD implements CMOS input stage architecture enabling rail-to-rail common-mode input range (−0.2 V to VDD + 0.2 V) and rail-to-rail output swing at 1.8 V supply, supporting ultra-low-voltage operation down to end-of-life AA/AAA cell voltage (0.9 V per cell). Its micropower design maintains 550 μV typical input offset voltage and 95 nV/√Hz input voltage noise across the industrial temperature range.
Each of its four amplifiers features independent active-high shutdown pins (pins 5, 10, 13, 16), enabling selective channel disablement with 0.8 μs turnoff time and 5 μs turnon time. The device operates within 1.8 V to 3.6 V single-supply range and supports split-supply configurations (±0.8 V to ±1.8 V), with guaranteed performance at 1.8 V, 2.4 V, and 3.6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 3.6 V single supply - enables direct operation from two alkaline or NiMH cells without regulation. |
| Supply Current per Channel | 20 μA typical at 1.8 V - extends battery life in always-on sensor nodes and wearable monitors. |
| Shutdown Current per Channel | 10 nA typical - reduces system standby power by >2000× versus active mode. |
| Unity-Gain Bandwidth | 500 kHz - sufficient for ECG, pulse oximetry, and thermistor signal amplification up to ~100 Hz. |
| Input Offset Voltage | 550 μV typical - ensures <1 mV error in 12-bit ADC interfaces with gain ≤10. |
| Rail-to-Rail I/O | Input common-mode range −0.2 V to VDD+0.2 V; output swing within 25 mV of rails - maximizes dynamic range at 1.8 V. |
| Output Drive Capability | ±5 mA min at 1.8 V - drives 300 kΩ loads and small capacitive loads directly without buffer stages. |
Pinout & Package
TSSOP-16 package (PW suffix), 4.4 mm × 5.0 mm body, 0.65 mm pitch, exposed pad optional; RoHS-compliant, moisture sensitivity level 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplifier A output - rail-to-rail capable, drives 300 kΩ load with <25 mV headroom at 1.8 V. |
| 2 | 1IN− | Inverting input of Amp A - high-impedance CMOS node (3 pA bias current), compatible with megaohm sensor networks. |
| 3 | 1IN+ | Non-inverting input of Amp A - same rail-to-rail common-mode range as output, supports ground-referenced inputs. |
| 4 | GND | Analog ground reference - must be connected to low-impedance PCB ground plane for noise immunity. |
| 5 | 1SHDN | Active-high shutdown control for Amp A - logic high (>2 V at VDD ≥2.7 V) disables amplifier; 10 nA leakage when low. |
| 6 | VDD | Positive supply - accepts 1.8–3.6 V; requires local 0.1 μF ceramic + 6.8 μF tantalum decoupling. |
| 7 | 2OUT | Amplifier B output - electrically identical to Pin 1; supports independent signal paths. |
| 8 | 2IN− | Inverting input of Amp B - isolated from other channels; no crosstalk above −120 dB at 1 kHz. |
| 9 | 2IN+ | Non-inverting input of Amp B - matches Pin 3 performance; supports differential sensing with matched layout. |
| 10 | 2SHDN | Active-high shutdown for Amp B - fully independent timing (0.8 μs off, 5 μs on) from other channels. |
| 11 | 3IN+ | Non-inverting input of Amp C - pin-compatible with standard quad op-amp layouts using TSSOP-16 footprint. |
| 12 | 3IN− | Inverting input of Amp C - same 3 pA bias current and 550 μV offset as all channels. |
| 13 | 3OUT | Amplifier C output - rail-to-rail swing confirmed at 1.8 V, 2.4 V, and 3.6 V supply conditions. |
| 14 | 3/4SHDN | Shared shutdown for Amps C and D - logic high disables both; allows grouped power gating. |
| 15 | 4IN− | Inverting input of Amp D - characterized over full 0°C–70°C range with <6800 μV max offset. |
| 16 | 4OUT | Amplifier D output - verified 500 kHz GBW and 0.20 V/μs slew rate at 1.8 V supply. |
Key Features
| Feature | Design Value |
|---|---|
| 1.8 V operation | Functional at end-of-life battery voltage (0.9 V/cell), eliminating need for LDO in two-cell systems. |
| Per-channel shutdown | Pins 5 and 10 provide independent disable for Amps A/B; Pin 14 controls Amps C/D - enables dynamic channel management. |
| Rail-to-rail I/O | Input accepts signals from −0.2 V to VDD+0.2 V; output swings to within 25 mV of rails - preserves full ADC resolution at low VDD. |
| Ultralow noise | 95 nV/√Hz at 1 kHz - suitable for amplifying microvolt-level biopotential signals without added noise floor. |
| Low THD+N | 0.06% at 1 kHz, AV=1, VDD=2.4 V - meets audio-grade line driver requirements in portable instrumentation. |
| Stable with capacitive loads | Maintains >63° phase margin with 100 pF load (RNULL = 0 Ω); stable without external compensation in most sensor interfaces. |
Applications
| ECG Front-End Amplifier | Portable Gas Sensor Signal Chain |
|---|---|
|
Use Scenario: Amplifying 0.5–5 mV differential ECG signals from dry electrodes in a handheld monitor powered by two AAA cells. IC Role / Device Role / Timing Role: Quad TLV2765CD provides instrumentation amp (A+B), right-leg drive (C), and reference buffer (D) - all operating at 1.8 V with independent shutdown. Use Value: 20 μA/channel supply current extends battery life to >300 hours; rail-to-rail I/O captures full ECG waveform amplitude without clipping. |
Use Scenario: Conditioning output of electrochemical CO sensor (nA-level current, 100 mV full-scale) in battery-operated air quality badge. IC Role / Device Role / Timing Role: TLV2765CD configures transimpedance amp (A), filter stage (B), reference buffer (C), and ADC driver (D) - all sharing single 1.8 V rail. Use Value: 3 pA input bias current prevents sensor polarization; 10 nA shutdown current enables 99.9% duty-cycled sampling for multi-year battery life. |
| Thermistor-Based Temperature Logger | Low-Power Industrial IO-Link Analog Input |
|
Use Scenario: Measuring NTC thermistor resistance via constant-current excitation and ratiometric voltage measurement in a wireless temperature node. IC Role / Device Role / Timing Role: TLV2765CD serves as precision current source controller (A), bridge amplifier (B), reference buffer (C), and ADC interface (D) - all synchronized to MCU wake cycles. Use Value: 550 μV offset voltage contributes <0.1°C error in 10 kΩ thermistor readout; 500 kHz bandwidth supports fast thermal transient capture. |
Use Scenario: Providing 4–20 mA loop-powered analog input conditioning for IO-Link masters in factory automation, operating from 24 V loop with internal LDO. IC Role / Device Role / Timing Role: TLV2765CD implements sensor signal amplification (A), anti-alias filtering (B), isolation interface buffering (C), and diagnostic comparator (D) - all powered from regulated 3.3 V. Use Value: 1.8 V minimum supply allows use of ultra-low-dropout LDOs; shutdown capability reduces quiescent current during communication idle periods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail, micropower op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2454CD | Higher supply current (23 μA vs. 20 μA), wider VDD range (2.7–6 V), no shutdown function. | Lacks per-channel shutdown; requires ≥2.7 V supply - unsuitable for sub-2 V battery operation. | Select TLV2454CD only if higher bandwidth (650 kHz) and no shutdown are acceptable, and supply ≥2.7 V is guaranteed. |
| LPV821DR | Lower supply current (650 nA), lower bandwidth (10 kHz), no shutdown, single-channel only. | Not pin-compatible; requires external multiplexing for quad functionality; too slow for ECG or fast sensor response. | Choose LPV821DR only for ultra-long-life, low-bandwidth applications (e.g., environmental logging) where quad integration is not required. |
Compared with TLV2765CD, TLV2454CD trades shutdown capability and 1.8 V operation for slightly higher speed and output drive, while LPV821DR sacrifices bandwidth and channel count to achieve nanoamp quiescent current - making TLV2765CD the only option balancing quad integration, 1.8 V rail-to-rail operation, and per-channel shutdown in TSSOP-16.
Availability
TLV2765CD is available at Aetrix Electronics and suitable for portable medical devices, battery-powered gas sensors, thermistor-based temperature loggers, and IO-Link analog input modules requiring stable component supply across extended production lifecycles.
Supply support for TLV2765CD 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 TLV276x family was designed specifically for ultra-low-power, single-supply, rail-to-rail signal conditioning in battery-constrained applications - targeting portable healthcare, environmental monitoring, and energy-harvesting systems.
FAQ
What is the maximum supply voltage for TLV2765CD?
The absolute maximum supply voltage for TLV2765CD is 4 V, but the recommended operating range is strictly 1.8 V to 3.6 V. Operation above 3.6 V risks permanent damage and violates TI's published specifications. At 3.6 V, TLV2765CD delivers 3.55 V low-level output and 3.59 V high-level output under 500 μA load, confirming robust rail-to-rail performance across its full rated range.
Does TLV2765CD support true rail-to-rail input at 1.8 V supply?
Yes, TLV2765CD supports rail-to-rail input with a common-mode voltage range of −0.2 V to VDD + 0.2 V, verified at 1.8 V supply. This allows direct interfacing with ground-referenced sensors and enables full utilization of the 1.8 V supply range without level-shifting circuitry - a critical feature for low-voltage biopotential and thermistor applications.
How does TLV2765CD's shutdown functionality work per channel?
TLV2765CD provides three independent shutdown controls: Pin 5 (1SHDN) for Amp A, Pin 10 (2SHDN) for Amp B, and Pin 14 (3/4SHDN) for Amps C and D. Each requires a logic-high signal ≥2 V (at VDD ≥2.7 V) to disable; shutdown current drops to 10 nA per enabled channel, with 0.8 μs turnoff and 5 μs turnon times measured at 25°C with 300 kΩ load.
What is the typical input offset voltage of TLV2765CD and how does it vary with temperature?
TLV2765CD has a typical input offset voltage of 550 μV at 25°C and a maximum of 6800 μV across the full 0°C to 70°C commercial temperature range. Its offset drift is specified at 9 μV/°C, meaning total offset variation due to temperature is less than 630 μV over the full range - critical for precision DC-coupled sensor interfaces where calibration intervals exceed product lifetime.
Can TLV2765CD drive a 100 pF capacitive load without oscillation?
Yes, TLV2765CD maintains stability with up to 100 pF capacitive load without external compensation, delivering >63° phase margin at 25°C with RNULL = 0 Ω. This is confirmed in Figure 18 of the SLOS326F datasheet. For loads >100 pF or demanding transient response, a 20 Ω series resistor (RNULL) is recommended at the output to preserve phase margin and prevent ringing.
TLV2765CD 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:
- 0.23V/µs
- Gain Bandwidth Product:
- 500 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 550 µV
- Current - Supply:
- 20µA (x4 Channels)
- Current - Output / Channel:
- 10.2 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
TLV2765CD FAQ
1.How can I place an order for TLV2765CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2765CD 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 TLV2765CD reliable?
The price and inventory of TLV2765CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2765CD is usually 5 days.
3.What payment methods are accepted for TLV2765CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2765CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2765CD?
TLV2765CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2765CD 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 TLV2765CD?
For technical support, including TLV2765CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2765CD requirements.
6.How does Aetrix verify that TLV2765CD is sourced from the original manufacturer or authorized distributors?
All TLV2765CD 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 TLV2765CD meets industry standards.
7.What is the process for return or replacement of TLV2765CD?
All TLV2765CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2765CD, 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 TLV2765CD part is unused and in its original packaging.
Return procedure for TLV2765CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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