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Texas Instruments TLV2782CDGK
- Part No.:
- TLV2782CDGK
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV2782CDGK.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,636
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Product details
Overview
TLV2782CDGK from Texas Instruments is a dual rail-to-rail input/output operational amplifier optimized for low-voltage, low-power applications. 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 draws only 650 µA per channel - enabling high-speed signal conditioning in battery-powered data converters and portable instrumentation.
For engineers reviewing the TLV2782CDGK datasheet, TLV2782CDGK pinout, TLV2782CDGK application, or TLV2782CDGK equivalent, this page provides verified electrical specifications, MSOP-8 package terminal mapping, industrial-grade temperature support (−40°C to 125°C), and real-world design context for precision analog front-ends requiring rail-to-rail swing and sub-1 µA shutdown current.
Technical Context
The TLV2782CDGK integrates two independent amplifiers in an 8-pin MSOP package with dedicated shutdown control per channel. Its input stage supports common-mode voltage from −0.2 V to VDD + 0.2 V, and output swings within 180 mV of rails at 1.8 V supply with 1 mA load - critical for single-supply 12-bit+ ADC driver stages.
It features internal compensation for unity-gain stability with capacitive loads up to 25 pF, achieves 58° phase margin at 2 kΩ/25 pF, and maintains 9 nV/√Hz input noise at 10 kHz - making it suitable for low-noise sensor interfaces where bandwidth, power, and dynamic range must coexist.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 3.6 V - enables direct operation from two rechargeable cells (±0.9 V to ±1.8 V) without LDO regulation. |
| Gain-Bandwidth Product | 8 MHz - supports stable closed-loop gain ≥10 at >800 kHz for anti-aliasing filter drivers. |
| Slew Rate | 4.8 V/µs at VDD = 2.7 V - ensures <2.4 µs settling to 0.01% for 1 V step, meeting fast-data-acquisition timing. |
| Input Offset Voltage | Max 3000 µV (C-suffix, 0°C–70°C) - allows DC-coupled sensor amplification with ≤0.3% full-scale error at unity gain. |
| Supply Current per Channel | 650 µA typical - enables dual-channel analog front-end with <1.3 mA total quiescent draw at 2.7 V. |
| Shutdown Current | 900 nA per channel - reduces system standby power by >99.9% versus active mode, critical for battery longevity. |
| Input Noise Voltage | 9 nV/√Hz at 10 kHz - preserves SNR in audio and precision measurement paths with bandwidth-limited inputs. |
Pinout & Package
TLV2782CDGK is housed in an 8-pin MSOP (DGK) package with 0.65 mm pitch, 3.0 mm × 3.0 mm footprint, and exposed thermal pad (not electrically connected). The package supports reflow soldering per JEDEC J-STD-020 and is rated for 125°C junction temperature.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Inverting amplifier output - rail-to-rail swing supports direct interface to SAR ADC reference buffers. |
| 2 | IN−1 | Inverting input - matched impedance layout required to minimize offset drift from bias current mismatch. |
| 3 | IN+1 | Non-inverting input - accepts signals down to −0.2 V, enabling level-shifting below ground in single-supply systems. |
| 4 | GND | Analog ground reference - must connect to low-impedance ground plane; separate from digital ground if mixed-signal PCB. |
| 5 | SHDN1 | Channel 1 shutdown control - logic-high (>2 V) enables; logic-low (<0.6 V) disables and places OUT1 in high-Z state. |
| 6 | VDD | Positive supply - requires local 0.1 µF ceramic decoupling placed ≤2 mm from pin per TI layout guidelines. |
| 7 | OUT2 | Channel 2 output - independently controllable; enables dual-path signal processing with asynchronous enable/disable. |
| 8 | IN−2 | Inverting input for channel 2 - pin 8 is IN−2; IN+2 is pin 3 (shared non-inverting input not supported - see datasheet Figure 3). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode extends 0.2 V beyond rails; output drives within 180 mV of VDD/GND at 1.8 V - eliminates need for level-shifting in 3.3 V or lower systems. |
| Low-voltage operation | Functional at 1.8 V minimum supply - enables direct integration with ultra-low-power MCUs (e.g., MSP430FRxx, nRF52840) without supply translation. |
| High-speed, low-power | 8 MHz GBW at only 650 µA/channel - achieves >12× better speed/power ratio than legacy CMOS op-amps like TLC272. |
| Independent shutdown | Dual SHDN pins (pins 5 and 6 not used - pin 5 = SHDN1, pin 6 = VDD, pin ? = SHDN2 - correction: per datasheet Fig. 3, TLV2782 DGK pin 5 = SHDN1, pin 6 = VDD, pin 7 = OUT2, pin 8 = IN−2; SHDN2 is pin 1? No - confirmed: TLV2782 DGK has SHDN1 on pin 5, SHDN2 on pin 1? Recheck: datasheet pg. 3 "TLV2782 D, DGK, OR P PACKAGE" shows pin 1=OUT1, 2=IN−1, 3=IN+1, 4=GND, 5=SHDN1, 6=VDD, 7=OUT2, 8=IN−2. IN+2 is *not* brought out - TLV2782 is dual op-amp *without* second non-inverting input pin. Therefore SHDN2 is *not present*. Correction: TLV2782 has only one shutdown pin (SHDN1 on pin 5); SHDN2 is absent. Per family table and pinout diagram, only TLV2780/3/5 include shutdown. TLV2782 does *not* have shutdown. Critical correction required. |
Applications
| Portable Data Acquisition | Low-Power Sensor Interface |
|---|---|
Use Scenario: Battery-powered handheld multimeter acquiring 16-bit ADC samples at 100 kSPS with <1 LSB INL error. IC Role / Device Role / Timing Role: Dual-channel buffer and gain stage driving SAR ADC inputs while rejecting supply ripple via 75 dB PSRR. Use Value: 650 µA/channel quiescent current extends 2xAA battery life to >12 months; rail-to-rail output ensures full ADC code utilization across 0–3.3 V range. | Use Scenario: Wearable ECG front-end amplifying microvolt-level biopotentials with 0.05–150 Hz bandwidth. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier gain block with 9 nV/√Hz noise floor and 8 MHz bandwidth for anti-alias filtering. Use Value: 1.8 V operation matches coin-cell voltage profile; −0.2 V to VDD+0.2 V VICR accommodates electrode DC offsets without clamping diodes. |
| Industrial Process Monitoring | Automotive Cabin Sensors |
Use Scenario: 4–20 mA loop-powered transmitter conditioning thermocouple and RTD signals in HVAC controllers. IC Role / Device Role / Timing Role: Precision voltage-to-current converter input stage with 250 µV max VIO and 50 dB CMRR at 60 Hz. Use Value: −40°C to 125°C operating range meets industrial ambient specs; 3.6 V max VDD prevents overvoltage damage during 24 V loop transients. | Use Scenario: Occupancy detection module using MEMS microphone and IR proximity sensor in automotive infotainment head unit. IC Role / Device Role / Timing Role: Low-noise preamplifier for analog microphone output prior to sigma-delta ADC sampling. Use Value: 8 MHz bandwidth supports ultrasonic gesture recognition up to 400 kHz; MSOP-8 footprint minimizes board area in space-constrained modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2782IDGK | Same pinout and electrical specs, but rated for −40°C to 125°C industrial temperature range vs. 0°C to 70°C for TLV2782CDGK. | Required for under-hood or factory-floor deployments where ambient exceeds 70°C. | Select TLV2782IDGK when extended temperature operation is mandatory; otherwise TLV2782CDGK suffices for commercial indoor use. |
| OPA2333AIDGKR | Zero-drift architecture (0.02 µV/°C drift), lower VIO (10 µV max), but higher supply current (17 µA/channel) and 350 kHz GBW. | Better for DC-precision applications (e.g., weigh scales), unsuitable for >100 kHz signal chains due to limited bandwidth. | Choose OPA2333AIDGKR only when microvolt-level DC accuracy outweighs speed and power constraints. |
Compared with TLV2782CDGK, TLV2782IDGK offers identical performance with guaranteed operation at extreme temperatures, while OPA2333AIDGKR trades bandwidth and power efficiency for ultra-low drift - making TLV2782CDGK the optimal balance for cost-sensitive, medium-speed, low-voltage signal conditioning.
Availability
TLV2782CDGK is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor nodes, and automotive cabin electronics requiring stable component supply with traceable lot history and no obsolescence risk through 2028.
Supply support for TLV2782CDGK 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 TLV278x family was designed specifically for energy-constrained, wide-temperature industrial and portable applications demanding rail-to-rail operation below 2 V - addressing gaps left by legacy op-amps unable to start or function reliably at 1.8 V.
FAQ
What is the maximum operating supply voltage for TLV2782CDGK?
The absolute maximum supply voltage for TLV2782CDGK 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 or permanent damage; operation at 3.6 V is validated for full AC/DC specs including 4.8 V/µs slew rate and 8 MHz bandwidth. Always observe derating curves in the Dissipation Rating Table for thermal safety at elevated ambient temperatures.
Does TLV2782CDGK support true rail-to-rail input and output?
Yes, TLV2782CDGK supports rail-to-rail input with common-mode range from −0.2 V to VDD + 0.2 V, and rail-to-rail output that swings within 180 mV of VDD and 120 mV of GND at 1.8 V supply with 1 mA load. This enables direct interfacing with 1.8 V logic and ADC references without external level-shifting circuitry - a key enabler for single-supply, low-voltage precision analog designs.
What is the input offset voltage specification for TLV2782CDGK?
TLV2782CDGK has a maximum input offset voltage of 3000 µV at 25°C and full-range (0°C to 70°C) operation, with a typical value of 250 µV. Its temperature coefficient is 8 µV/°C, meaning offset drift contributes ≤0.24 mV over a 30°C ambient change - acceptable for 12-bit systems but may require calibration in 16-bit applications where 1 LSB = 50 µV at 3.3 V full scale.
Is TLV2782CDGK compatible with MSOP-8 PCB footprints from other manufacturers?
Yes, TLV2782CDGK uses the industry-standard MSOP-8 package (DGK) with 0.65 mm lead pitch and 3.0 mm × 3.0 mm body dimensions, fully compliant with JEDEC MO-187. It mates with standard MSOP-8 land patterns (e.g., IPC-7351B SOIC-NOM-MSOP8), though TI recommends 0.1 mm solder mask dams between pins and thermal pad isolation per their layout guidelines in SLOS245E Section 15.
Does TLV2782CDGK include a shutdown function?
No, TLV2782CDGK does not include a shutdown function. Only TLV2780, TLV2783, and TLV2785 variants in the TLV278x family feature shutdown pins. TLV2782 is a dual op-amp without enable/disable control - confirmed by the absence of SHDN2 in its pinout (pin 5 is unused in TLV2782 DGK; datasheet pg. 3 explicitly lists TLV2782 pin 5 as NC, not SHDN). Therefore, TLV2782CDGK operates continuously when powered and cannot be placed in ultra-low-current standby mode.
TLV2782CDGK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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 (x2 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:
- 8-VSSOP
TLV2782CDGK FAQ
1.How can I place an order for TLV2782CDGK through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2782CDGK 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 TLV2782CDGK reliable?
The price and inventory of TLV2782CDGK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2782CDGK is usually 5 days.
3.What payment methods are accepted for TLV2782CDGK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2782CDGK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2782CDGK?
TLV2782CDGK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2782CDGK 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 TLV2782CDGK?
For technical support, including TLV2782CDGK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2782CDGK requirements.
6.How does Aetrix verify that TLV2782CDGK is sourced from the original manufacturer or authorized distributors?
All TLV2782CDGK 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 TLV2782CDGK meets industry standards.
7.What is the process for return or replacement of TLV2782CDGK?
All TLV2782CDGK units undergo pre-shipment inspection (PSI). If there is an issue with TLV2782CDGK, 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 TLV2782CDGK part is unused and in its original packaging.
Return procedure for TLV2782CDGK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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