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Texas Instruments TLV2242CD
- Part No.:
- TLV2242CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2242CD.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,998
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Product details
Overview
TLV2242CD from Texas Instruments is a dual-channel, micropower, rail-to-rail input/output operational amplifier optimized for ultra-low-power sensor signal conditioning and battery-powered instrumentation. It delivers 1 µA per channel supply current, 5.5 kHz gain-bandwidth product, and rail-to-rail output swing down to 2.7 V supply - enabling direct interface with MSP430 microcontrollers and Li-ion battery systems (2.5–12 V operation).
For engineers reviewing the TLV2242CD datasheet, TLV2242CD pinout, TLV2242CD application, or TLV2242CD equivalent, this page provides verified electrical specifications, MSOP-8 package layout, real-world use cases in portable medical sensors and precision analog front-ends, and validated alternative options for low-power op-amp selection.
Technical Context
The TLV2242CD implements a CMOS input stage with picoampere-level input bias current (≤550 pA typical), enabling high-impedance source interfacing without significant error. Its rail-to-rail input common-mode range (0 V to VCC) and output swing (within 180 mV of rails at 50 µA load) support full-scale signal utilization in single-supply systems.
Designed for stability with capacitive loads up to 100 pF, it features 60° phase margin and 15 dB gain margin under standard test conditions (RL = 500 kΩ, CL = 100 pF). DC accuracy is maintained via 600 µV typical input offset voltage and 100 dB CMRR at 25°C, specified across 2.7 V, 5 V, and 12 V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current per Channel | 1 µA typical - enables multi-year battery life in always-on sensor nodes |
| Gain Bandwidth Product | 5.5 kHz - supports DC-coupled, low-frequency signal amplification (e.g., thermocouples, strain gauges) |
| Input Offset Voltage | 600 µV typical - ensures <0.1% error in 0.6 V full-scale measurements |
| 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 lower systems |
| Supply Voltage Range | 2.5 V to 12 V - compatible with Li-ion (3.0–4.2 V), coin cell (3 V), and industrial 5/12 V rails |
| Operating Temperature | 0°C to 70°C (Commercial grade) - qualified for consumer and industrial ambient environments |
| Input Bias Current | 100 pA typical at 25°C - permits use with >10 MΩ feedback networks without gain error |
Pinout & Package
TLV2242CD is housed in an 8-pin MSOP (DGK) package with 0.65 mm pitch, optimized for space-constrained PCB layouts while maintaining thermal performance (θJA = 259.9°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of Channel 1 - drives loads up to ±200 µA with rail-to-rail swing |
| 2 | 1IN− | Inverting input of Channel 1 - high-impedance CMOS node (IIB ≤ 550 pA) |
| 3 | 1IN+ | Non-inverting input of Channel 1 - accepts signals from 0 V to VCC |
| 4 | GND | Analog ground reference - must be connected to low-noise system ground plane |
| 5 | VCC | Positive supply rail - supports 2.5–12 V; decoupling requires 0.1 µF ceramic + 6.8 µF tantalum |
| 6 | 2IN+ | Non-inverting input of Channel 2 - independent, matched performance to Channel 1 |
| 7 | 2IN− | Inverting input of Channel 2 - identical bias current and offset characteristics as Pin 2 |
| 8 | 2OUT | Output of Channel 2 - fully independent output stage; crosstalk < −40 dB at 1 kHz |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 1 µA/channel supply current enables >10-year battery life in 10 µA average-current IoT sensors |
| Rail-to-Rail Input/Output | Full 0–VCC input range and output swing within 180 mV of rails preserves signal fidelity in low-voltage systems |
| Low Input Offset Voltage | 600 µV typical ensures sub-0.1% gain error in precision instrumentation amplifiers using high-Z sources |
| High CMRR | 100 dB at 25°C rejects common-mode noise in noisy industrial or automotive environments |
| Stable with Capacitive Loads | Guaranteed stable with up to 100 pF load capacitance - eliminates need for isolation resistors in ADC driver stages |
Applications
| Portable Medical Sensors | Low-Power Data Acquisition |
|---|---|
|
Use Scenario: Amplifying microvolt-level ECG or temperature sensor outputs in wearable health monitors powered by CR2032 coin cells. IC Role / Device Role / Timing Role: Dual-channel signal conditioner providing gain, filtering, and rail-to-rail buffering before 12-bit SAR ADC sampling. Use Value: 1 µA/channel quiescent current extends battery life beyond 3 years; rail-to-rail output ensures full ADC input range utilization. |
Use Scenario: Front-end amplification for battery-operated environmental data loggers measuring humidity, pressure, and light intensity. IC Role / Device Role / Timing Role: Dual op-amp performing sensor excitation (constant-current source) and differential signal amplification. Use Value: 600 µV offset and 100 dB CMRR minimize measurement drift; 2.5 V minimum supply enables direct use with Li-ion cells at end-of-discharge. |
| Industrial Process Monitoring | Smart Metering Analog Front-End |
|
Use Scenario: Signal conditioning for 4–20 mA loop-powered transmitters in factory automation systems with limited power budgets. IC Role / Device Role / Timing Role: Precision I/V conversion and level-shifting amplifier driving isolated ADC inputs. Use Value: Input bias current ≤550 pA prevents loading errors in high-impedance feedback networks; 12 V max supply supports legacy 24 V loop designs. |
Use Scenario: Voltage and current sensing in residential smart meters operating from split-phase 120/240 V AC with auxiliary 3.3 V DC rails. IC Role / Device Role / Timing Role: Dual-channel amplifier for shunt-based current measurement and transformer-coupled voltage scaling. Use Value: Dual configuration reduces component count; rail-to-rail I/O accommodates wide dynamic range of metering signals without external level shifters. |
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 |
|---|---|---|---|
| TLV2402CDR | Lower input offset (0.39 mV typ), higher supply current (0.88 µA/ch), same 5.5 kHz GBW | Better DC accuracy but 12% higher quiescent current - preferred where offset dominates power budget | Select TLV2402CDR when <0.4 mV offset is required and 0.12 µA extra current is acceptable |
| LPV521MG/NOPB | Lower supply current (322 nA/ch), lower GBW (155 kHz), same rail-to-rail I/O, smaller SC70-5 package | Higher bandwidth but single-channel only - suitable for ultra-low-power, space-constrained single-signal paths | Select LPV521MG/NOPB for single-channel, sub-400 nA applications where board area is critical |
Compared with TLV2242CD, TLV2402CDR offers superior DC precision at modest current cost, while LPV521MG/NOPB delivers ultra-low power in a smaller footprint but lacks dual-channel integration - choice depends on channel count, offset tolerance, and PCB area constraints.
Availability
TLV2242CD is available at Aetrix Electronics and suitable for portable medical sensors, low-power data acquisition, industrial process monitoring, and smart metering applications requiring stable component supply and long-term design continuity.
Supply support for TLV2242CD 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 analog ICs.
The TLV224x family was designed specifically for micropower, rail-to-rail signal conditioning in battery-powered instrumentation, portable diagnostics, and energy-harvesting systems - prioritizing ultra-low current, wide supply range, and robust DC accuracy.
FAQ
What is the maximum supply voltage for TLV2242CD?
The absolute maximum supply voltage for TLV2242CD is 16.5 V, but the recommended operating range is 2.5 V to 12 V. Operating above 12 V risks exceeding safe power dissipation limits and may degrade long-term reliability. Electrical specifications are guaranteed only within the 2.5–12 V range, with characterization performed at 2.7 V, 5 V, and 12 V.
Does TLV2242CD support true rail-to-rail input and output?
Yes, TLV2242CD supports true rail-to-rail input (common-mode range from 0 V to VCC) and rail-to-rail output (swing within 180 mV of both rails at 50 µA load). This allows full utilization of the supply voltage range in single-supply configurations, such as 3.3 V systems interfacing with 12-bit ADCs requiring 0–3.3 V input spans.
What is the typical input bias current of TLV2242CD?
The typical input bias current of TLV2242CD is 100 pA at 25°C, with a maximum of 550 pA across the 0°C to 70°C commercial temperature range. This ultra-low bias current enables accurate amplification of signals from high-impedance sources like pH electrodes, photodiodes, and piezoresistive sensors without significant voltage drop across feedback networks.
Can TLV2242CD drive capacitive loads without oscillation?
Yes, TLV2242CD is characterized for stability with capacitive loads up to 100 pF under standard test conditions (RL = 500 kΩ). Phase margin remains ≥60° and gain margin ≥15 dB at this load. For loads >100 pF, external isolation resistance (e.g., 10–50 Ω in series with output) is recommended to maintain stability in precision ADC driver applications.
Is TLV2242CD pin-compatible with other devices in the TLV224x family?
No - TLV2242CD uses an 8-pin MSOP (DGK) package with a specific dual-amplifier pinout, while TLV2241 (single-channel) uses 5-pin SOT-23 and TLV2244 (quad-channel) uses 14-pin TSSOP/SOIC. Pin assignments differ across variants; PCB layout must match the DGK footprint and channel mapping defined in the TLV2242CD datasheet.
TLV2242CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- 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
TLV2242CD FAQ
1.How can I place an order for TLV2242CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2242CD 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 TLV2242CD reliable?
The price and inventory of TLV2242CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2242CD is usually 5 days.
3.What payment methods are accepted for TLV2242CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2242CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2242CD?
TLV2242CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2242CD 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 TLV2242CD?
For technical support, including TLV2242CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2242CD requirements.
6.How does Aetrix verify that TLV2242CD is sourced from the original manufacturer or authorized distributors?
All TLV2242CD 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 TLV2242CD meets industry standards.
7.What is the process for return or replacement of TLV2242CD?
All TLV2242CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2242CD, 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 TLV2242CD part is unused and in its original packaging.
Return procedure for TLV2242CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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