OPA365 2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier | TI.com

OPA365 (ACTIVE)

2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier

 

Description

The OPAx365 zerø-crossover series, rail-to-rail, high-performance, CMOS operational amplifiers are optimized for very low voltage, single-supply applications. Rail-to-rail input or output, low-noise (4.5 nV/√Hz) and high-speed operation (50-MHz Gain Bandwidth) make these devices ideal for driving sampling analog-to-digital converters (ADCs). Applications include audio, signal conditioning, and sensor amplification. The OPA365 family of op amps are also well-suited for cell phone power amplifier control loops.

Special features include an excellent common-mode rejection ratio (CMRR), no input stage crossover distortion, high input impedance, and rail-to-rail input and output swing. The input common-mode range includes both the negative and positive supplies. The output voltage swing is within 10 mV of the rails.

The OPA365 (single version) is available in the micro-size SOT23-5 (SOT-5) and SOIC-8 packages. The OPA2365 (dual version) is offered in the SOIC-8 package. All versions are specified for operation from –40°C to +125°C. Single and dual versions have identical specifications for maximum design flexibility.

Features

  • Gain Bandwidth: 50 MHz
  • Zerø-Crossover Distortion Topology:
    • Excellent THD+N: 0.0004%
    • CMRR: 100 dB (Minimum)
    • Rail-to-Rail Input and Output
      • Input 100 mV Beyond Supply Rail
  • Low Noise: 4.5 nV/√Hz at 100 kHz
  • Slew Rate: 25 V/µs
  • Fast Settling: 0.3 µs to 0.01%
  • Precision:
    • Low Offset: 100 µV
    • Low Input Bias Current: 0.2 pA
  • 2.2-V to 5.5-V Operation

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Parametrics Compare all products in High-speed op amps (GBW>=50MHz)

 
Architecture
Number of channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
BW @ Acl (MHz)
Acl, min spec gain (V/V)
Slew Rate (Typ) (V/us)
Vn at flatband (Typ) (nV/rtHz)
Vn at 1 kHz (Typ) (nV/rtHz)
Iq per channel (Typ) (mA)
Vos (offset voltage @ 25 C) (Max) (mV)
Rail-to-rail
Features
Rating
Operating temperature range (C)
Package Group
Package size: mm2:W x L (PKG)
CMRR (Typ) (dB)
Input bias current (Max) (pA)
Offset drift (Typ) (uV/C)
GBW (Typ) (MHz)
Output current (Typ) (mA)
2nd harmonic (dBc)
3rd harmonic (dBc)
@ MHz
OPA365 OPA2365 OPA2365-Q1 OPA365-EP OPA365-Q1
CMOS
Voltage FB    
CMOS
Voltage FB    
CMOS
Voltage FB    
CMOS
Voltage FB    
CMOS
Voltage FB    
1     2     2     1     1    
2.2     2.2     2.2     2.2     2.2    
5.5     5.5     5.5     5.5     5.5    
50     50     50     50     50    
1     1     1       1    
25     25     25     25     25    
4.5     4.5     4.5     4.5     4.5    
4.5     4.5     4.5     4.5     4.5    
4.6     4.6     4.6     4.6     4.6    
0.2     0.2     0.2     0.2     0.2    
In
Out    
In
Out    
In
Out    
In
Out    
In
Out    
Zero Crossover     Zero Crossover     Zero Crossover     Zero Crossover     Zero Crossover    
Catalog     Catalog     Automotive     HiRel Enhanced Product     Automotive    
-40 to 125     -40 to 125     -40 to 125     -55 to 125     -40 to 125    
SOIC | 8
SOT-23 | 5    
SOIC | 8     SOIC | 8     SOT-23 | 5     SOT-23 | 5    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)     8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)     5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)     5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)    
120     120     120     120     120    
10     10     10     10     10    
1     1     1     3     1    
50     50     50     50     50    
65     65     65     65     65