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Texas Instruments TLV2442CDR
- Part No.:
- TLV2442CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2442CDR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,018
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Product details
Overview
TLV2442CDR from Texas Instruments is a dual rail-to-rail output operational amplifier in SOIC-8 package, featuring 1.8 MHz gain-bandwidth product, 750 µA per channel supply current, and extended common-mode input range (0 V to 4.25 V at 5-V supply). It delivers 600-Ω load drive capability and 16 nV/√Hz input voltage noise at 1 kHz, making it suitable for precision signal conditioning in low-voltage data acquisition systems.
For engineers reviewing the TLV2442CDR datasheet, TLV2442CDR pinout, TLV2442CDR application, or TLV2442CDR equivalent, key selection criteria include rail-to-rail output swing, input offset voltage ≤950 µV (for A-grade variants), no phase inversion behavior, and compatibility with 2.7–10 V single-supply operation in sensor front-ends and ADC interface circuits.
Technical Context
The TLV2442CDR uses Advanced LinCMOS™ process technology to achieve high input impedance (>1 TΩ), ultra-low input bias current (1 pA typ), and rail-to-rail output swing without phase inversion - even when common-mode inputs reach either supply rail. Its architecture supports stable unity-gain operation with 600 Ω load and 100 pF capacitive load.
It is fully characterized at 3-V and 5-V supplies, optimized for low-voltage operation while maintaining 70 dB CMRR and 95 dB PSRR at 25°C. The device exhibits 0.75 V/µs slew rate (5-V supply) and 1.8 MHz gain-bandwidth product, enabling accurate amplification of medium-bandwidth sensor signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - enables direct use with Li-ion, 3.3 V, and 5 V rails without level-shifting. |
| Gain-Bandwidth Product | 1.8 MHz typ - supports closed-loop bandwidth up to ~1.2 MHz in unity-gain buffer configuration. |
| Input Offset Voltage | ≤950 µV max (TLV2442A variant) - ensures <0.02% error in 5-V full-scale 12-bit ADC interfaces. |
| Output Drive Capability | 600 Ω load - sufficient to drive telecom line drivers and SAR ADC reference buffers directly. |
| Input Voltage Noise | 16 nV/√Hz @ 1 kHz - preserves SNR in low-level piezoelectric or thermopile sensor amplification. |
| Common-Mode Input Range | 0 V to 4.25 V min @ 5 V supply - allows direct sensing of ground-referenced signals without biasing. |
| Supply Current per Channel | 750 µA typ - enables dual-channel operation in battery-powered handheld instruments with <1.5 mA total quiescent draw. |
Pinout & Package
TLV2442CDR is housed in an 8-pin SOIC (D) package with standard dual-opamp pinout and tape-and-reel packaging (R suffix denotes reeled format).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - rail-to-rail swing supports full dynamic range into ADC inputs. |
| 2 | IN1– | Inverting input - high-impedance node (1 TΩ) minimizes loading on high-Z sources like pH electrodes. |
| 3 | IN1+ | Non-inverting input - common-mode range extends to both rails, enabling true single-supply differential sensing. |
| 4 | GND / VDD– | Negative supply terminal - shared ground reference for dual-channel operation in single-supply systems. |
| 5 | IN2+ | Non-inverting input - identical electrical specs to Pin 3; supports independent second channel. |
| 6 | IN2– | Inverting input - matched bias current ensures low offset drift in differential configurations. |
| 7 | OUT2 | Amplifier 2 output - fully independent rail-to-rail output stage, usable as buffer or active filter stage. |
| 8 | VDD+ | Positive supply terminal - accepts 2.7–10 V; internal regulation not required for stable operation. |
Key Features
| Feature | Design Value |
|---|---|
| No phase inversion | Eliminates output glitches when input crosses supply rails - critical for overvoltage-tolerant sensor monitoring. |
| Rail-to-rail output | Swings within 25 mV of VDD+ and GND at 5 mA load - maximizes ADC utilization in 3.3 V systems. |
| Extended common-mode range | 0 V to VDD–1 V (min) - enables direct connection of grounded sensors without external bias resistors. |
| Low input bias current | 1 pA typical - prevents signal degradation in >100 MΩ source impedances (e.g., photodiode transimpedance stages). |
| Macromodel included | SPICE model provided by TI - accelerates stability analysis and closed-loop simulation before prototyping. |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Instrumentation |
|---|---|
Use Scenario: Amplifying low-level outputs from strain gauges, RTDs, or thermocouples in PLC analog input modules. IC Role / Device Role / Timing Role: Precision dual-channel instrumentation amplifier front-end with rail-to-rail output driving 12-bit SAR ADCs. Use Value: 950 µV max input offset and 16 nV/√Hz noise ensure <0.1% measurement accuracy across –40°C to 85°C industrial temperature range. | Use Scenario: Biopotential signal amplification (ECG, EMG) in handheld diagnostic devices powered by coin-cell or LiPo batteries. IC Role / Device Role / Timing Role: Low-power dual op-amp for first-stage gain and high-pass filtering prior to ADC sampling. Use Value: 750 µA per channel supply current enables >100-hour battery life; rail-to-rail output matches 3.3 V ADC input range without level shifters. |
| Telecom Line Driver Interface | ADC Reference Buffering |
Use Scenario: Driving 600 Ω analog telephone line interfaces in VoIP endpoint equipment. IC Role / Device Role / Timing Role: Output buffer with robust 600 Ω drive capability and low THD+N (0.17% @ 1 kHz). Use Value: Maintains signal fidelity under reactive loads; eliminates need for discrete transistor output stages. | Use Scenario: Buffering precision voltage references (e.g., REF5025) into successive-approximation ADC sample-and-hold inputs. IC Role / Device Role / Timing Role: Low-noise, low-output-impedance unity-gain buffer isolating reference from switching transient currents. Use Value: 130 Ω closed-loop output impedance at 1 MHz ensures stable settling (<1.5 µs to 0.1%) during ADC acquisition windows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail output op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2340UA | Higher GBW (5.5 MHz), higher supply current (800 µA/ch), same SOIC-8 package | Better for higher-frequency active filters but less optimal for ultra-low-power designs | Select when bandwidth >3 MHz is required and power budget allows +50 µA/channel |
| MCP6022-I/SN | Lower input offset (250 µV max), lower noise (11.5 nV/√Hz), same 2.7–6 V supply range | Superior DC precision and noise performance, but rated only to 85°C ambient | Prefer for medical or test equipment where offset and noise dominate over temperature range |
Compared with OPA2340UA and MCP6022-I/SN, TLV2442CDR offers the widest operating temperature range (0°C to 70°C for C-suffix), lowest cost-per-channel in SOIC-8, and guaranteed no-phase-inversion behavior - making it optimal for industrial sensor nodes requiring reliability and predictable rail-crossing response.
Availability
TLV2442CDR is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable medical instrumentation, and telecom line driver interface applications requiring stable component supply and long-term production continuity.
Supply support for TLV2442CDR 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 TLV2442CDR belongs to TI's Advanced LinCMOS™ rail-to-rail output op-amp family, designed specifically for low-voltage, high-accuracy signal conditioning in battery-powered and industrial systems where input common-mode range and output swing are critical.
FAQ
What is the maximum operating temperature range for TLV2442CDR?
The TLV2442CDR carries the 'C' temperature suffix, specifying an operating free-air temperature range of 0°C to 70°C. This is confirmed in the Recommended Operating Conditions table of the SLOS169H datasheet. The device is not rated for extended industrial or automotive temperature ranges unless marked with I, Q, or M suffixes - TLV2442CDR remains strictly a commercial-grade part. Derating guidelines apply above 25°C ambient per the Dissipation Rating Table.
Does TLV2442CDR support true rail-to-rail input operation?
No, TLV2442CDR provides rail-to-rail *output* swing but not rail-to-rail *input*. Its common-mode input voltage range extends from VDD– (GND) to VDD–1 V minimum at 5 V supply - i.e., 0 V to 4.25 V - which exceeds standard CMOS op-amps but does not include the positive rail. The datasheet explicitly states "Wide-Input-Voltage" and "No Phase Inversion", not rail-to-rail input. For true rail-to-rail input, consider TI's TLV27x or OPA333 families.
Can TLV2442CDR drive a 100 pF capacitive load stably?
Yes, TLV2442CDR is characterized for stable operation with 100 pF capacitive load in unity-gain configuration, as shown in Figures 19–20 (phase margin ≥65° at 25°C, 5 V supply). The datasheet specifies 65° phase margin and 9 dB gain margin under those conditions. However, output series resistance (≥10 Ω) is recommended for loads >100 pF or when driving transmission lines to prevent peaking or oscillation.
What is the input offset voltage specification for TLV2442CDR?
TLV2442CDR is the 'C' grade (0°C to 70°C) version of the TLV2442A, with maximum input offset voltage of 950 µV at TA = 25°C and 1500 µV over full temperature range. This is distinct from the standard TLV2442C (2.5 mV max). The 'A' designation in TLV2442A indicates enhanced DC precision, and the D-package variant TLV2442CDR inherits this spec. Confirmation is found in the "TLV2442 AVAILABLE OPTIONS" table showing TLV2442CD (non-R) and TLV2442CDR share identical electrical grading.
Is TLV2442CDR pin-compatible with other dual op-amps in SOIC-8?
TLV2442CDR follows the industry-standard dual op-amp pinout (pin 1 OUT1, pin 2 IN1–, pin 3 IN1+, pin 4 GND, pin 5 IN2+, pin 6 IN2–, pin 7 OUT2, pin 8 VDD+), matching LM358, TL072, and OPA2340. However, functional compatibility requires verification of supply range, input/output swing, and stability characteristics - e.g., LM358 lacks rail-to-rail output and has higher input bias current, so direct substitution may degrade performance in low-voltage or high-impedance applications.
TLV2442CDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.4V/µs
- Gain Bandwidth Product:
- 1.81 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 750µA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2442CDR FAQ
1.How can I place an order for TLV2442CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2442CDR 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 TLV2442CDR reliable?
The price and inventory of TLV2442CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2442CDR is usually 5 days.
3.What payment methods are accepted for TLV2442CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2442CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2442CDR?
TLV2442CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2442CDR 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 TLV2442CDR?
For technical support, including TLV2442CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2442CDR requirements.
6.How does Aetrix verify that TLV2442CDR is sourced from the original manufacturer or authorized distributors?
All TLV2442CDR 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 TLV2442CDR meets industry standards.
7.What is the process for return or replacement of TLV2442CDR?
All TLV2442CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2442CDR, 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 TLV2442CDR part is unused and in its original packaging.
Return procedure for TLV2442CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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