Quad, 3MHz, Low-Power, Low-Noise, RRI/O, 1.8V CMOS Operational Amplifier - OPA4314

OPA4314 (ACTIVE)

Quad, 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 General-Purpose 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)
Iq per channel (Typ) (mA)
Vn at 1kHz (Typ) (nV/rtHz)
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Offset Drift (Typ) (uV/C)
Features
Input Bias Current (Max) (pA)
CMRR (Typ) (dB)
Output Current (Typ) (mA)
Architecture
OPA4314 OPA2314 OPA314
4    2    1   
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   
Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125   
TSSOP    SOIC
SON
VSSOP   
SC70
SOT-23   
14TSSOP: 32 mm2: 6.4 x 5(TSSOP)    8SOIC: 29 mm2: 6 x 4.9(SOIC)
See datasheet (SON)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
5SC70: 4 mm2: 2.1 x 2(SC70)
5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)   
1    1    1   
EMI Hardened    EMI Hardened
Small Size   
Small Size
EMI Hardened   
10    10    10   
80    80    80   
20    20    20   
CMOS    CMOS    CMOS   

Other qualified versions of OPA4314

Version Part Number Definition
Automotive OPA4314-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects

WEBENCH® Designer OPA4314

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