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Texas Instruments TLV2322IPWLE
- Part No.:
- TLV2322IPWLE
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLV2322IPWLE.pdf
- Description:
- IC CMOS 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
TLV2322IPWLE from Texas Instruments is a dual, low-voltage, rail-to-rail output operational amplifier optimized for single-supply battery-powered systems. It operates from 2.7V to 8V, draws only 27µA per channel at –40°C to +85°C, features 10¹²Ω input impedance, and supports common-mode input down to the negative rail and up to VDD –1V - enabling direct interfacing with high-impedance sensors in smoke detectors and field transmitters.
For engineers reviewing the TLV2322IPWLE datasheet, TLV2322IPWLE pinout, TLV2322IPWLE application, or TLV2322IPWLE equivalent, key selection criteria include ultra-low supply current (≤27µA), input offset voltage ≤9mV at 25°C, rail-to-rail output swing, TSSOP-8 package compatibility, and LinCMOS™ process advantages for sensor signal conditioning in portable industrial instrumentation.
Technical Context
The TLV2322IPWLE uses Texas Instruments' silicon-gate LinCMOS™ process to achieve ultra-low bias currents (<1pA typ.) and high input impedance (10¹²Ω), making it suitable for high-impedance sensor front-ends. Its input stage supports common-mode voltages extending to the negative rail and within 1V of VDD, while the output stage delivers rail-to-rail swing with low-level output voltage as low as 115mV at 1mA sink current.
It is fully characterized at 3V and 5V, with guaranteed operation across –40°C to +85°C. Unity-gain bandwidth is 27kHz (VDD = 3V) and 85kHz (VDD = 5V); slew rate is 0.02 V/µs (3V) and 0.03 V/µs (5V); and input-referred noise is 68nV/√Hz at 1kHz - all specified under no-load, low-power conditions critical for battery longevity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 8V - enables direct use with single-cell Li-ion (3.0–3.7V), two-cell alkaline (2.7–3.2V), or 5V logic rails without regulation. |
| Quiescent Current per Channel | 27µA max over –40°C to +85°C - extends battery life in always-on sensor nodes and portable field transmitters. |
| Input Offset Voltage | 9mV max at 25°C - ensures <0.5% gain error in 2V full-scale sensor amplification without trimming. |
| Common-Mode Input Range | Extends to negative rail and up to VDD –1V at 25°C - allows ground-referenced sensor inputs and level-shifting without external bias networks. |
| Output Voltage Swing | Rail-to-rail - delivers full dynamic range into high-impedance loads (e.g., ADC inputs or microcontroller analog pins). |
| Input Impedance | 10¹²Ω typical - minimizes loading on high-Z sources like piezoresistive pressure elements or thermistor bridges. |
| Unity-Gain Bandwidth | 85kHz at VDD = 5V - sufficient for DC–10kHz sensor signal conditioning including flow, temperature, and level transmitters. |
Pinout & Package
Packaged in an 8-pin Thin Shrink Small-Outline Package (TSSOP), the TLV2322IPWLE measures 3.0mm × 4.4mm × 1.1mm - optimized for space-constrained PCB layouts in handheld and modular field instruments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 | Output, Channel 1 | Amplified, rail-to-rail output signal for first op-amp stage; capable of sourcing/sinking ±30mA. |
| OUT2 | Output, Channel 2 | Independent rail-to-rail output for second op-amp stage; electrically isolated from OUT1. |
| 1IN+ | Noninverting Input, Channel 1 | High-impedance (+) input for differential or noninverting configurations; accepts signals from 0V to VDD–1V. |
| 1IN– | Inverting Input, Channel 1 | High-impedance (–) input; used with feedback network to set gain or configure comparator mode. |
| 2IN+ | Noninverting Input, Channel 2 | Dedicated + input for second amplifier; supports independent signal path (e.g., reference buffer + sensor amp). |
| 2IN– | Inverting Input, Channel 2 | Second amplifier's – input; enables dual-channel signal processing without cross-talk. |
| VDD+ | Positive Power Supply | Single positive supply connection (2.7–8V); must be bypassed with ≥0.1µF ceramic capacitor near pin. |
| VDD– / GND | Ground / Negative Supply | Reference node for both inputs and outputs; serves as return path for all supply and signal currents. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 27µA per channel over full temperature range - enables >10-year battery life in low-duty-cycle wireless sensor nodes. |
| Rail-to-rail output swing | Drives to within 115mV of GND and 190mV of VDD at 1mA load - maximizes ADC utilization in 3V systems. |
| LinCMOS™ input stage | 10¹²Ω input impedance and <1pA bias current - preserves accuracy in high-resistance thermistor or pH electrode interfaces. |
| ESD protection | 2000V HBM rating per MIL-STD-883C Method 3015.2 - reduces handling sensitivity and improves board-level robustness. |
| Wide common-mode range | Includes GND and extends to VDD–1V - eliminates need for input biasing resistors in single-supply sensor amps. |
Applications
| Smoke and Heat Detector | Pressure Transmitter |
|---|---|
Use Scenario: Amplifying low-level ionization chamber or thermopile output in battery-powered fire alarm modules. IC Role / Device Role / Timing Role: Dual-channel signal conditioner: one channel buffers reference voltage, the other amplifies sensor output with gain ≥100. Use Value: 27µA per channel enables multi-year operation on CR123A cells; rail-to-rail output ensures full ADC range usage at 3V supply. |
Use Scenario: Conditioning bridge output from MEMS pressure sensors in industrial process monitoring. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end with precision gain-setting resistors and rail-to-rail output drive. Use Value: 10¹²Ω input impedance prevents bridge imbalance errors; low offset (≤9mV) maintains <0.1% FS accuracy over temperature. |
| Temperature Transmitter | Motion Detector |
Use Scenario: Linearizing and amplifying RTD or thermistor voltage in 4–20mA loop-powered field devices. IC Role / Device Role / Timing Role: Dual op-amp configuration: one channel forms constant-current excitation source, the other performs ratiometric amplification. Use Value: Single 3.3V supply operation eliminates LDO; LinCMOS™ input avoids self-heating errors in high-resistance thermistor circuits. |
Use Scenario: Amplifying weak pyroelectric sensor output in low-power PIR motion detectors. IC Role / Device Role / Timing Role: AC-coupled preamplifier with high-pass filtering and gain staging before microcontroller ADC sampling. Use Value: Ultra-low current draw extends coin-cell lifetime; wide input common-mode range accommodates sensor bias drift without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2422IDR | Higher quiescent current (125µA/ch), wider supply range (2.7–16V), higher GBW (220kHz), but larger input offset (2mV typ) | Better for higher-speed sensor interfaces requiring >100kHz bandwidth; less suitable for multi-year battery life | Choose TLV2422IDR when bandwidth >50kHz is required and power budget allows >4× higher current. |
| LPV521MG/NOPB | Lower quiescent current (320nA/ch), lower bandwidth (15.5kHz), smaller offset (1.25mV max), same TSSOP-8 package | Optimized for nano-power applications (e.g., energy-harvesting sensors); insufficient bandwidth for fast transient detection | Choose LPV521MG/NOPB only when sub-µA supply current is mandatory and signal bandwidth <10kHz. |
Compared with TLV2322IPWLE, TLV2422IDR trades 4.6× higher supply current for 3.2× greater bandwidth and rail-to-rail I/O, while LPV521MG/NOPB reduces current by 84× but sacrifices 5.5× bandwidth and lacks full rail-to-rail output swing - making TLV2322IPWLE the balanced choice for general-purpose low-power industrial sensing.
Availability
TLV2322IPWLE is available at Aetrix Electronics and suitable for smoke detectors, pressure transmitters, temperature transmitters, and motion detectors requiring stable component supply across long-lifecycle industrial programs.
Supply support for TLV2322IPWLE 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 TLV2322IPWLE belongs to TI's LinCMOS™ low-voltage op-amp product line, engineered specifically for ultra-low-power, single-supply sensor signal conditioning in portable and battery-operated industrial instrumentation.
FAQ
What is the maximum operating temperature range for the TLV2322IPWLE?
The TLV2322IPWLE is fully specified and guaranteed to operate across –40°C to +85°C ambient temperature. Electrical characteristics including supply current (27µA max), input offset voltage (9mV max), and common-mode range are validated over this full industrial temperature range - ensuring reliability in outdoor field transmitters and building automation systems where thermal extremes occur.
Does the TLV2322IPWLE support true rail-to-rail input operation?
The TLV2322IPWLE supports rail-to-rail *output* swing but not full rail-to-rail *input*. Its common-mode input voltage range extends to the negative rail (GND) and up to VDD –1V at 25°C (VDD –1.2V over full temperature range). This allows ground-referenced inputs and eliminates need for bias networks in most single-supply sensor interfaces, though inputs cannot safely exceed VDD –1V without risk of phase reversal or increased offset.
What package type does TLV2322IPWLE use, and is it RoHS-compliant?
The TLV2322IPWLE uses an 8-pin Thin Shrink Small-Outline Package (TSSOP) with 0.65mm lead pitch, measuring 3.0mm × 4.4mm × 1.1mm. It is RoHS-compliant and halogen-free per TI's standard environmental specifications, and is compatible with standard surface-mount reflow profiles including JEDEC J-STD-020 moisture sensitivity level 1 (MSL 1).
Can TLV2322IPWLE drive capacitive loads directly?
The TLV2322IPWLE is not unity-gain stable with large capacitive loads (>100pF) without isolation resistance. For driving ADC input capacitors or long traces, a series resistor (typically 100Ω–500Ω) between the TLV2322IPWLE output and the load is recommended to maintain phase margin >28° and prevent oscillation - as verified in TI's SLOS187A datasheet Figure 5-33 (Phase Margin vs Load Capacitance).
How does the input bias current of TLV2322IPWLE impact high-impedance sensor designs?
The TLV2322IPWLE exhibits typical input bias current of 0.6pA at 25°C and ≤2000pA at 85°C, enabled by its LinCMOS™ process. In a 10MΩ sensor source, this introduces ≤20µV error at room temperature - negligible compared to its 9mV max offset. However, PCB contamination or humidity can dominate leakage; proper guarding and conformal coating are recommended for sub-pA-level precision.
TLV2322IPWLE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.03V/µs
- Gain Bandwidth Product:
- 85 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.6 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 20µA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2 V
- Voltage - Supply Span (Max):
- 8 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
TLV2322IPWLE FAQ
1.How can I place an order for TLV2322IPWLE through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2322IPWLE 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 TLV2322IPWLE reliable?
The price and inventory of TLV2322IPWLE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2322IPWLE is usually 5 days.
3.What payment methods are accepted for TLV2322IPWLE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2322IPWLE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2322IPWLE?
TLV2322IPWLE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2322IPWLE 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 TLV2322IPWLE?
For technical support, including TLV2322IPWLE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2322IPWLE requirements.
6.How does Aetrix verify that TLV2322IPWLE is sourced from the original manufacturer or authorized distributors?
All TLV2322IPWLE 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 TLV2322IPWLE meets industry standards.
7.What is the process for return or replacement of TLV2322IPWLE?
All TLV2322IPWLE units undergo pre-shipment inspection (PSI). If there is an issue with TLV2322IPWLE, 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 TLV2322IPWLE part is unused and in its original packaging.
Return procedure for TLV2322IPWLE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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