OPA396 - 1MHz, 24µA Precision RRIO Op Amp | Texas Instruments
MPN: OPA396 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.25 | $1.25 |
| 10 | $1.12 | $11.20 |
| 100 | $0.89 | $89.00 |
| 500 | $0.72 | $360.00 |
| 1,000 | $0.61 | $610.00 |
Drop-in alternatives for OPA396 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
OPA391
✅ Drop-In📋 Reference alternative (not in catalog)
TLV9001
✅ Drop-In📋 Reference alternative (not in catalog)
MAX9914
✅ Drop-In📋 Reference alternative (not in catalog)
OPA396 Maximum Ratings & Electrical Characteristics
| Number of Channels | 1 |
| Gain Bandwidth Product | 1 MHz |
| Quiescent Current | 23.5 µA |
| Input Bias Current | 10 fA |
| Offset Voltage (Max) | 100 µV |
| Offset Drift | 1.2 µV/°C |
| Supply Voltage Range | 1.7 V to 5.5 V |
| Rail-to-Rail Input | Yes |
| Rail-to-Rail Output | Yes |
| CMRR (Typ) | 100 dB |
| PSRR (Typ) | 100 dB |
| Operating Temperature Range | -40°C to +125°C |
| Package | SC-70-5 (DCK) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
OPA396 Pin Configuration
| Pin 1 | OUT — Output |
| Pin 2 | V- — Negative supply (ground in single-supply) |
| Pin 3 | IN+ — Non-inverting input |
| Pin 4 | IN- — Inverting input |
| Pin 5 | V+ — Positive supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
OPA396 is suitable for 6 applications: Battery-Powered Instrumentation, Photodiode Amplifier, Wearable Fitness Tracker, IoT Sensor Node, Portable Medical Device, Active Filter.
Battery-Powered Instrumentation
The OPA396's low quiescent current of 23.5 µA and wide supply range of 1.7 V to 5.5 V make it ideal for battery-powered instruments. It provides precision amplification with rail-to-rail output, maximizing dynamic range in portable devices. The low offset and drift ensure accurate measurements over temperature, while the small SC-70-5 package saves board space. In a typical glucose meter, the OPA396 amplifies the sensor signal with minimal power consumption, extending battery life. Its 1 MHz bandwidth supports moderate-speed signal processing, and the 10 fA bias current minimizes errors from high-impedance sensors.
Recommended
Photodiode Amplifier
The OPA396's ultra-low input bias current of 10 fA is essential for photodiode transimpedance amplifiers, where bias current errors directly affect accuracy. The 1 MHz bandwidth supports moderate-speed optical sensing, and the rail-to-rail output allows direct interfacing with ADCs. In a pulse oximeter, the OPA396 amplifies the photodiode signal with minimal dark-current error, enabling accurate SpO2 readings. The low quiescent current is critical for wearable devices, and the small package fits compact designs. The device's low offset and drift ensure stable performance over temperature, making it suitable for medical and industrial optical sensors.
Recommended
Wearable Fitness Tracker
The OPA396 is ideal for wearable fitness trackers due to its low power consumption and small footprint. With a quiescent current of 23.5 µA, it extends battery life in devices that monitor heart rate, steps, and activity. The rail-to-rail input and output allow operation at low supply voltages, and the 1 MHz bandwidth is sufficient for bio-signal processing. In a heart-rate monitor, the OPA396 amplifies the ECG signal with high precision, while the low offset ensures accurate detection. The SC-70-5 package fits into space-constrained designs, and the wide temperature range supports outdoor use.
Recommended
IoT Sensor Node
In IoT sensor nodes, the OPA396 provides precision signal conditioning with minimal power draw. Its 23.5 µA quiescent current is ideal for battery-powered or energy-harvesting devices. The wide supply range of 1.7 V to 5.5 V accommodates various power sources, and the rail-to-rail output interfaces directly with ADCs. The low input bias current of 10 fA is perfect for high-impedance sensors like gas sensors or humidity sensors. The OPA396's small package and low cost make it suitable for mass-deployed IoT devices, and its precision specifications ensure reliable data acquisition.
Recommended
Portable Medical Device
The OPA396 is well-suited for portable medical devices such as glucose meters, pulse oximeters, and blood pressure monitors. Its low quiescent current of 23.5 µA extends battery life, while the precision specifications (100 µV offset, 10 fA bias) ensure accurate measurements. The rail-to-rail output allows direct connection to ADCs, and the 1 MHz bandwidth supports bio-signal frequencies. In a continuous glucose monitor, the OPA396 amplifies the sensor current with minimal error, enabling accurate glucose readings. The small SC-70-5 package is ideal for wearable medical patches, and the wide temperature range ensures reliable operation.
Recommended
Active Filter
The OPA396 can be used in low-power active filters, such as low-pass or band-pass filters for sensor signal conditioning. Its 1 MHz gain-bandwidth product allows filter cutoff frequencies up to a few hundred kHz, while the low quiescent current of 23.5 µA is ideal for battery-powered systems. The rail-to-rail input and output provide maximum signal swing, and the low offset voltage ensures accurate DC performance. In a wearable ECG monitor, the OPA396 implements a Sallen-Key low-pass filter to remove high-frequency noise, preserving the QRS complex. The small package and low power make it suitable for portable devices.
Recommended
Recommended Products Summary
Engineering reference data for OPA396 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | OPA391 | TLV9001 | MAX9914 |
|---|---|---|---|---|
| Package | SC-70-5 (DCK) | SC-70-5 (DCK) | SC-70-5 (DCK) | SC-70-5 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Gain Bandwidth Product | 1 MHz | 1 MHz | 1 MHz | 1 MHz |
| Quiescent Current | 23.5 µA | 24 µA | 40 µA | 20 µA |
| Input Bias Current | 10 fA | 20 pA | 5 pA | 1 pA |
| Offset Voltage (Max) | 100 µV | 125 µV | 400 µV | 200 µV |
| Supply Voltage Range | 1.7 V to 5.5 V | 1.7 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Rail-to-Rail Input/Output | Yes/Yes | Yes/Yes | Yes/Yes | Yes/Yes |
Key Differentiators
- Ultra-low input bias current of 10 fA (vs OPA391)
- Lower offset voltage of 100 µV (vs TLV9001)
- Lower quiescent current of 23.5 µA (vs TLV9001)
Design Notes
The OPA396 operates from 1.7 V to 5.5 V. For battery-powered designs, ensure the supply voltage remains within this range. Use a 0.1 µF ceramic capacitor close to the V+ pin for decoupling. The low quiescent current of 23.5 µA makes it suitable for always-on applications, but consider the total system power budget.
For high-impedance sources, minimize PCB leakage by using a guard ring around the input pins. Keep traces short and avoid routing high-speed digital signals near the inputs. The SC-70-5 package is small, so ensure proper soldering and thermal relief. Place the decoupling capacitor as close as possible to the supply pin.
Do not exceed the absolute maximum supply voltage of 5.5 V. The input common-mode range extends 100 mV beyond the rails, but avoid driving inputs beyond this. The device is unity-gain stable, but for high-gain configurations, watch for stability issues with capacitive loads. Use a feedback capacitor if driving large capacitive loads.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified.
