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 Op Amps

 
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)
Offset Drift (Typ) (uV/C)
Iq per channel (Typ) (mA)
Vn at 1kHz (Typ) (nV/rtHz)
CMRR (Typ) (dB)
Rating
Operating Temperature Range (C)
Package Group
Approx. Price (US$)
Package Size: mm2:W x L (PKG)
Input Bias Current (Max) (pA)
Output Current (Typ) (mA)
Additional Features
Architecture
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   
1    1    1   
0.15    0.15    0.15   
14    14    14   
80    80    80   
Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125   
SC70
SOT-23   
SOIC
SON
VSSOP   
TSSOP   
0.30 | 1ku    0.45 | 1ku    0.65 | 1ku   
5SC70: 4 mm2: 2.1 x 2(SC70)
5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)   
See datasheet (SON)    14TSSOP: 32 mm2: 6.4 x 5(TSSOP)   
10    10    10   
20    20    20   
EMI Hardened    EMI Hardened
Tiny Package   
EMI Hardened   
CMOS    CMOS    CMOS   

WEBENCH® Designer OPA314

Amplifier Topology
 Non-inverting
 Inverting
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 1.8 to 5.5 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -40.0 °C
Maximum Temperature = 125.0 °C