3MHz, Low-Power, Low-Noise, RRI/O, 1.8V CMOS Operational Amplifier  - OPA314

OPA314 (ACTIVE)

3MHz, Low-Power, Low-Noise, RRI/O, 1.8V CMOS Operational Amplifier

Description

The OPA314 family of single-, dual-, and quad-channel operational amplifiers represents a new generation of low-power, general-purpose CMOS amplifiers. Rail-to-rail input and output swings, low quiescent current (150 µA typically at 5 VS) combined with a wide bandwidth of 3 MHz, and very low noise (14 nV/√Hz at 1 kHz) make this family very attractive for a variety of battery-powered applications that require a good balance between cost and performance. The low input bias current supports applications with MΩ source impedances.

The robust design of the OPA314 devices provides ease-of-use to the circuit designer: unity-gain stability with capacitive loads of up to 300 pF, an integrated RF/EMI rejection filter, no phase reversal in overdrive conditions, and high electrostatic discharge (ESD) protection (4-kV HBM).

These devices are optimized for low-voltage operation as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V), and are specified over the full extended temperature range of –40°C to 125°C.

The OPA314 (single) is available in both SC70-5 and SOT23-5 packages. The OPA2314 (dual) is offered in SO-8, MSOP-8, and DFN-8 packages. The quad-channel OPA4314 is offered in a TSSOP-14 package.

Features

  • Low IQ: 150 µA/ch
  • Wide Supply Range: 1.8 V to 5.5 V
  • Low Noise: 14 nV/√Hz at 1 kHz
  • Gain Bandwidth: 3 MHz
  • Low Input Bias Current: 0.2 pA
  • Low Offset Voltage: 0.5 mV
  • Unity-Gain Stable
  • Internal RF/EMI Filter
  • Extended Temperature Range:
    –40°C to 125°C

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Parametrics Compare all products in Precision Amplifier

 
Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
GBW (Typ) (MHz)
Slew Rate (Typ) (V/us)
Rail-to-Rail
Vos (Offset Voltage @ 25C) (Max) (mV)
Iq per channel (Typ) (mA)
Vn at 1kHz (Typ) (nV/rtHz)
Additional Features
Offset Drift (Typ) (uV/C)
IIB (Max) (pA)
Io (Typ) (mA)
CMRR (Typ) (dB)
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
OPA314 OPA2314 OPA4314
1     2     4    
1.8     1.8     1.8    
5.5     5.5     5.5    
3     3     3    
1.5     1.5     1.5    
In
Out    
In
Out    
In
Out    
2.5     2.5     2.5    
0.15     0.15     0.15    
14     14     14    
  EMI Hardened      
1     1     1    
10     10     10    
20     20     20    
80     80     80    
Catalog     Catalog     Catalog    
-40 to 125     -40 to 125     -40 to 125    
5SC70
5SOT-23    
8SOIC
8SON
8VSSOP    
14TSSOP    
0.30 | 1ku     0.45 | 1ku     0.65 | 1ku    
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