LM7321MAIn StockTexas Instruments
LM7321MA is a rail-to-rail input/output operational amplifier from Texas Instruments. Features voltage-feedback architecture with 80 dB CMRR, 1 µA bias current, and 6 mV max offset voltage. Available in 8-SOIC package from $1.08, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LM7321MA Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0813(MOQ 165)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Rail-to-rail input and output swing for maximum dynamic range in low-voltage systems
- Ultra-low bias current of 1 µA (max 1.5 µA) minimizes loading on high-impedance sources
- High common-mode rejection ratio of 80 dB (min 65 dB) for superior noise immunity
- Integrated frequency compensation for stable single-supply operation
- Compact 8-SOIC (PowerWise) package suitable for space-constrained designs
Applications
The LM7321MA is well suited for portable battery-powered instrumentation, sensor signal conditioning, and precision measurement circuits where supply voltage is limited. Its rail-to-rail I/O capability makes it ideal for data acquisition front-ends, active filters, and low-side current sensing in industrial and consumer applications. The low bias current and high CMRR also make it a strong choice for medical monitoring devices and audio pre-amplifier stages.
Specifications
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 1.5 µA |
| Bias Current-Max (IIB) @25C | 1 µA |
| Common-mode Reject Ratio-Min | 65dB |
| Common-mode Reject Ratio-Nom | 80dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 6000 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e0 |
| Low-Bias | NO |
| Low-Offset | NO |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -17.5 V |
| Neg Supply Voltage-Nom (Vsup) | -5 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 235 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 12.3V/us |
| Supply Current-Max | 2mA |
| Supply Voltage Limit-Max | 17.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | TIN LEAD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 16000 |
| Voltage Gain-Min | 2511 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM7321MA:
Frequently Asked Questions
What is the supply voltage range for the LM7321MA?
The LM7321MA is designed for single or dual-supply operation. It supports single supply voltages commonly in the range of 2.7 V to 12 V, making it suitable for battery-powered and low-voltage systems where rail-to-rail performance is critical.
What does rail-to-rail I/O mean for the LM7321MA?
Rail-to-rail input/output means the LM7321MA can accept input signals and produce output signals that swing to within millivolts of both the positive and negative supply rails. This maximizes usable signal range in low-voltage circuits, which is essential for 3.3 V and 5 V single-supply designs.
What are typical applications for the LM7321MA op-amp?
Typical applications include sensor signal conditioning, precision instrumentation amplifiers, active analog filters, audio pre-amplification, low-side current sensing, and data acquisition front-ends. Its 80 dB CMRR and 1 µA bias current make it especially suitable for high-impedance transducer interfaces and portable medical equipment.
Is there a pin-compatible alternative to the LM7321MA?
Pin-compatible or functionally similar single op-amps in 8-SOIC include the TLV2371 and OPA314 from Texas Instruments. When selecting an alternative, compare key parameters such as bandwidth, input offset voltage (6 mV max for LM7321MA), bias current, and supply voltage range to ensure drop-in compatibility.
Where can I buy the LM7321MA and what is the price?
The LM7321MA is available on FindMyChip starting from approximately $1.08 per unit, with worldwide shipping. Submit a quote request to get competitive pricing for small and large volume orders from verified distributors.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 165+ | $1.2477 | $205.87 |
| 210+ | $1.2061 | $253.28 |
| 280+ | $1.0813 | $302.76 |
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