OPA391DCKR
ActiveMICROPOWER, SINGLE, HIGH-PRECISION LOW-BIAS-CURRENT RRIO OP AMP WITH HIGH SPEED-TO-POWER RATIO
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OPA391DCKR
ActiveMICROPOWER, SINGLE, HIGH-PRECISION LOW-BIAS-CURRENT RRIO OP AMP WITH HIGH SPEED-TO-POWER RATIO
Technical Specifications
Parameters and characteristics for this part
| Specification | OPA391DCKR |
|---|---|
| Amplifier Type | General Purpose |
| Current - Input Bias | 0.01 pA |
| Current - Output / Channel | 60 mA |
| Current - Supply | 24 µA |
| Gain Bandwidth Product | 1 MHz |
| Mounting Type | Surface Mount |
| Number of Circuits | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | Rail-to-Rail |
| Package / Case | SC-70-5, 5-TSSOP, SOT-353 |
| Slew Rate | 1 V/µs |
| Supplier Device Package | SC-70-5 |
| Voltage - Input Offset | 15 µV |
| Voltage - Supply Span (Max) [Max] | 5.5 V |
| Voltage - Supply Span (Min) [Min] | 1.7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Arrow | N/A | 3000 | $ 0.79 | |
| Digikey | Cut Tape (CT) | 1 | $ 2.29 | |
| 10 | $ 2.05 | |||
| 25 | $ 1.94 | |||
| 100 | $ 1.65 | |||
| 250 | $ 1.55 | |||
| 500 | $ 1.36 | |||
| 1000 | $ 1.12 | |||
| Digi-Reel® | 1 | $ 2.29 | ||
| 10 | $ 2.05 | |||
| 25 | $ 1.94 | |||
| 100 | $ 1.65 | |||
| 250 | $ 1.55 | |||
| 500 | $ 1.36 | |||
| 1000 | $ 1.12 | |||
| Tape & Reel (TR) | 3000 | $ 1.05 | ||
| 6000 | $ 1.01 | |||
| LCSC | Piece | 1 | $ 1.53 | |
| 10 | $ 1.29 | |||
| 30 | $ 1.15 | |||
| 100 | $ 0.99 | |||
| 500 | $ 0.93 | |||
| 1000 | $ 0.90 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.39 | |
| 100 | $ 1.15 | |||
| 250 | $ 0.82 | |||
| 1000 | $ 0.62 | |||
Description
General part information
OPA391 Series
The OPA391, OPA2391, and OPA4391 (OPAx391) devices feature a unique combination of high bandwidth (1MHz) along with very-low quiescent current (24µA) in high-precision amplifiers. These features combined with rail-to-rail input and output make these devices an exceptional choice in high-gain, low-power applications. Ultra-low input bias current of 10fA, only 45µV of offset (maximum), and 1.2µV/°C of drift over temperature help maintain high precision in ratiometric and amperometric sensor front ends that have demanding low-power requirements.
The OPAx391 use Texas Instruments’ proprietary e‑trim™ operational amplifier technology, enabling a unique combination of ultra-low offset and low input offset drift without the need for any input switching or auto-zero techniques. The CMOS-based technology platform also features a modern, robust output stage design that is tolerant of high output capacitance, alleviating stability problems that are common in typical low-power amplifiers.
The OPA391, OPA2391, and OPA4391 (OPAx391) devices feature a unique combination of high bandwidth (1MHz) along with very-low quiescent current (24µA) in high-precision amplifiers. These features combined with rail-to-rail input and output make these devices an exceptional choice in high-gain, low-power applications. Ultra-low input bias current of 10fA, only 45µV of offset (maximum), and 1.2µV/°C of drift over temperature help maintain high precision in ratiometric and amperometric sensor front ends that have demanding low-power requirements.
Documents
Technical documentation and resources