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Texas Instruments TLV2242CDR
- Part No.:
- TLV2242CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2242CDR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,700
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Product details
Overview
TLV2242CDR from Texas Instruments is a dual-channel micropower rail-to-rail input/output operational amplifier in an 8-pin MSOP package, delivering 1 µA per channel supply current, 5.5 kHz gain bandwidth product, and operation from 2.5 V to 12 V. It features 600 µV typical input offset voltage, 100 dB CMRR, and rail-to-rail output swing-ideal for low-power sensor signal conditioning in battery-powered instrumentation.
For engineers reviewing the TLV2242CDR datasheet, TLV2242CDR pinout, TLV2242CDR application, or TLV2242CDR equivalent, key selection criteria include ultra-low quiescent current, guaranteed rail-to-rail I/O performance at 2.7 V, industrial temperature range (–40°C to 125°C), and compatibility with Li-ion and MSP430-based systems.
Technical Context
The TLV2242CDR implements a CMOS input stage enabling femtoampere-level input bias currents (<500 pA), supporting high-impedance sensor interfaces with megaohm-level feedback networks. Its rail-to-rail input common-mode range (0 V to VCC) and output swing (within 180 mV of rails at 50 µA load) ensure full dynamic range utilization in single-supply configurations.
Designed for stability with capacitive loads up to 100 pF, it achieves 60° phase margin and 15 dB gain margin while maintaining 2 V/ms slew rate and 1.84 ms 0.1% settling time at 2.7 V/5 V supplies-enabling precision DC-coupled amplification without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current / Channel | 1 µA typical - enables multi-year battery life in always-on IoT sensors and portable medical devices |
| Gain Bandwidth Product | 5.5 kHz - supports low-frequency signal conditioning (ECG, thermocouple, pH) without instability |
| Input Offset Voltage | 600 µV typical - ensures <±1 mV DC error in 12-bit ADC front-ends with gain ≤10 |
| Rail-to-Rail I/O | Input: 0 V to VCC; Output: within 180 mV of rails at 50 µA - maximizes dynamic range in 3.3 V or 5 V systems |
| Supply Voltage Range | 2.5 V to 12 V - interoperable with Li-ion (3.0–4.2 V), alkaline (2.5–4.5 V), and industrial 12 V rails |
| Operating Temperature | –40°C to 125°C - qualified for automotive cabin modules and industrial motor control feedback paths |
| CMRR | 100 dB typical at 25°C - rejects power supply ripple and EMI in noisy embedded environments |
Pinout & Package
TLV2242CDR uses an 8-pin MSOP (DGK) package with exposed thermal pad (not electrically connected). Pin 1 is marked by a dot; pin numbering follows standard MSOP convention (counterclockwise from mark).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of first op-amp channel - drives low-impedance loads up to ±200 µA with rail-to-rail swing |
| 2 | 1IN– | Inverting input of first channel - high-impedance node (300 MΩ differential resistance) for precision feedback |
| 3 | 1IN+ | Non-inverting input of first channel - accepts signals from 0 V to VCC without phase reversal |
| 4 | GND | Analog ground reference - must be low-inductance connection to minimize noise coupling |
| 5 | VCC | Positive supply - decoupling requires 0.1 µF ceramic capacitor placed ≤2 mm from pin |
| 6 | 2IN+ | Non-inverting input of second channel - independent of first channel; no crosstalk above –40 dB at 1 kHz |
| 7 | 2IN– | Inverting input of second channel - matched bias current to 1IN– for dual-channel common-mode rejection |
| 8 | 2OUT | Output of second op-amp channel - fully independent output stage with same rail-to-rail capability as Pin 1 |
Key Features
| Feature | Design Value |
|---|---|
| Micropower operation | 1 µA/channel supply current enables >10-year battery life in coin-cell-powered wireless sensors |
| Rail-to-rail input | Common-mode range extends from GND to VCC, eliminating level-shifting circuits in single-supply designs |
| Low input bias current | <500 pA max ensures <1 mV error with 10 MΩ source impedance - critical for piezoelectric and pH sensors |
| Industrial temperature grade | Specified from –40°C to 125°C supports under-hood automotive and factory-floor industrial applications |
| Stable with capacitive loads | Guaranteed phase margin ≥60° with 100 pF load - eliminates need for isolation resistors in ADC driver applications |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
Use Scenario: Amplifying microvolt-level ECG or EEG signals in wearable patch monitors powered by CR2032 batteries. IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier front-end with one channel for signal path and one for reference buffer. Use Value: 1 µA/channel current extends battery life beyond 3 years; rail-to-rail output drives 12-bit SAR ADCs directly without level-shifting. | Use Scenario: Conditioning 4–20 mA loop sensor outputs in PLC analog input modules operating in harsh factory environments. IC Role / Device Role / Timing Role: Precision current-to-voltage converter and filter driver with high CMRR rejecting 50/60 Hz mains interference. Use Value: 100 dB CMRR and –40°C to 125°C operation ensure stable 12-bit accuracy across temperature and EMI conditions. |
| Smart Utility Metering | Low-Power Environmental Sensing |
Use Scenario: Measuring voltage/current harmonics in residential smart meters using anti-aliasing filters and isolated ADCs. IC Role / Device Role / Timing Role: Dual op-amp implementing Sallen-Key 2-pole low-pass filter and unity-gain buffer for metrology ADC inputs. Use Value: 5.5 kHz GBW supports accurate 50/60 Hz fundamental + 5th harmonic measurement; 2.5 V min supply enables direct connection to meter's 3.3 V rail. | Use Scenario: Signal conditioning for CO₂, humidity, and temperature sensors in battery-powered air quality nodes. IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier for photodiode-based NDIR sensors and ratiometric bridge amplifier for RTD/humidity elements. Use Value: 500 nV/√Hz input voltage noise at 100 Hz and <500 pA input bias current preserve SNR in high-gain, high-impedance sensor interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail input/output op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2402CDR | 0.88 µA/channel supply current; 5 kHz GBW; 0.39 mV VIO max; same 8-pin MSOP package | Lower offset voltage suits higher-accuracy 16-bit systems; slightly lower drive strength (±100 µA) | Select TLV2402CDR when sub-millivolt DC accuracy is required over ultra-low power; verify load drive capability. |
| LPV821DRX | 320 nA/channel; 6.5 kHz GBW; 150 µV VIO max; 5-pin SOT-23 (single-channel only) | Lower power and offset but single-channel only; requires two units for dual functionality | Choose LPV821DRX for new ultra-low-power designs where board space allows dual placement and offset is critical. |
Compared with TLV2242CDR, TLV2402CDR offers tighter DC accuracy at marginally lower power, while LPV821DRX delivers significantly lower quiescent current but requires duplication for dual-channel use-making TLV2242CDR optimal for cost- and space-constrained dual-sensor interfaces needing proven industrial reliability.
Availability
TLV2242CDR is available at Aetrix Electronics and suitable for portable medical sensors, industrial process monitoring, and smart utility metering requiring stable component supply with long-term lifecycle support.
Supply support for TLV2242CDR 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 amplifiers and low-power design.
The TLV224x family was engineered specifically for ultra-low-power, rail-to-rail signal conditioning in battery-operated and energy-harvesting systems-emphasizing longevity, accuracy, and single-supply simplicity.
FAQ
What is the maximum supply voltage rating for TLV2242CDR?
The absolute maximum supply voltage for TLV2242CDR is 16.5 V, but the recommended operating range is 2.5 V to 12 V. Operation above 12 V risks exceeding safe power dissipation limits and may degrade long-term reliability. Electrical specifications are guaranteed at 2.7 V, 5 V, and 12 V per the datasheet.
Does TLV2242CDR support true rail-to-rail input at 2.5 V supply?
Yes, TLV2242CDR guarantees rail-to-rail input common-mode range (0 V to VCC) down to 2.5 V supply, verified across the full industrial temperature range (–40°C to 125°C). This enables direct interfacing with sensors whose output spans the entire supply rail, such as resistive bridge elements.
Can TLV2242CDR drive a 10 nF capacitive load stably?
No-TLV2242CDR is characterized for stability with up to 100 pF capacitive load. Driving 10 nF (10,000 pF) would cause severe peaking and potential oscillation. For larger loads, add a series isolation resistor (≥500 Ω) between TLV2242CDR output and the capacitance, or select a unity-gain-stable op-amp rated for heavy capacitive loads.
What is the typical input bias current of TLV2242CDR at 85°C?
At 85°C, the typical input bias current of TLV2242CDR remains below 300 pA for the C-suffix version and below 400 pA for the I-suffix version, as confirmed by Figure 4, 6, and 8 in the datasheet. This ultra-low bias enables accurate amplification of signals from high-impedance sources like glass pH electrodes.
Is TLV2242CDR pin-compatible with other devices in the TLV224x family?
TLV2242CDR (8-pin MSOP) shares identical pinout with TLV2242IDGK (industrial-grade MSOP) but is not pin-compatible with TLV2241 (5-pin SOT-23) or TLV2244 (14-pin TSSOP). The 8-pin MSOP footprint is unique to the dual-channel variants and requires dedicated layout-no adapter or drop-in replacement exists across package types.
TLV2242CDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.002V/µs
- Gain Bandwidth Product:
- 5.5 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 pA
- Voltage - Input Offset:
- 600 µV
- Current - Supply:
- 1µA (x2 Channels)
- Current - Output / Channel:
- 200 µA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2242CDR FAQ
1.How can I place an order for TLV2242CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2242CDR 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 TLV2242CDR reliable?
The price and inventory of TLV2242CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2242CDR is usually 5 days.
3.What payment methods are accepted for TLV2242CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2242CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2242CDR?
TLV2242CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2242CDR 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 TLV2242CDR?
For technical support, including TLV2242CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2242CDR requirements.
6.How does Aetrix verify that TLV2242CDR is sourced from the original manufacturer or authorized distributors?
All TLV2242CDR 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 TLV2242CDR meets industry standards.
7.What is the process for return or replacement of TLV2242CDR?
All TLV2242CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2242CDR, 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 TLV2242CDR part is unused and in its original packaging.
Return procedure for TLV2242CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2242CDR Tags
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