OPA2325 Precision, 10-MHz, Low-Noise, Low-Power, RRIO, CMOS Zero-Crossover Operational Amplifier | TI.com

OPA2325 (ACTIVE)

Precision, 10-MHz, Low-Noise, Low-Power, RRIO, CMOS Zero-Crossover Operational Amplifier

 

Description

The OPA2325 is a dual, precision, low-voltage complementary metal-oxide semiconductor (CMOS) operational amplifier optimized for very low noise and wide bandwidth while operating on a low quiescent current of only 650 µA.

The OPA2325 features a linear input stage with zero-crossover distortion that delivers excellent common-mode rejection ratio (CMRR) of typically 114 dB over the entire input range. The input common-mode range extends 100 mV beyond the negative and positive supply rails. The output voltage typically swings within 10 mV of the rails.

The zero-crossover distortion, combined with wide bandwidth (10 MHz), high slew rate (5 V/µs), and low noise (9 nV/√Hz), make the OPA2325 a very good successive-approximation register (SAR) analog-to-digital converter (ADC) input driver amplifier. In addition, the OPA2325 has a wide supply-voltage range from 2.2 V to 5.5 V with excellent power-supply rejection ratio (PSRR) over the entire supply range, making the device suitable for precision, low-power applications that run directly from batteries without regulation.



Features

  • Precision with Zero-Crossover Distortion:
    • Low Offset Voltage: 150 µV (maximum)
    • High CMRR: 114 dB
    • Rail-to-Rail I/O
  • Wide Bandwidth: 10 MHz
  • Quiescent Current: 650 µA/ch
  • Single-Supply Voltage Range: 2.2 V to 5.5 V
  • Low Input Bias Current: 0.2 pA
  • Low Noise: 9 nV/√Hz at 10 kHz
  • Slew Rate: 5 V/µs
  • Unity-Gain Stable

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Parametrics Compare all products in Precision op amps (Vos<1mV)

 
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
Package Size: mm2:W x L (PKG)
Input Bias Current (Max) (pA)
Output Current (Typ) (mA)
Features
Architecture
OPA2325 OPA2316 OPA2320 OPA375 OPA388
2     2     2     1     1    
2.2     1.8     1.8     2.25     2.5    
5.5     5.5     5.5     5.5     5.5    
10     10     20     10     10    
5     6     10     4.75     5    
In
Out    
In
Out    
In
Out    
In to V-
Out    
In
Out    
0.15     2.5     0.15     0.5     0.005    
2     2     1.5     0.35     0.005    
0.65     0.4     1.5     0.89     1.7    
10     11     8.5     5     7    
114     80     114     120     138    
Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
SOIC | 8
VSSOP | 8    
SOIC | 8
SON | 8
VSSOP | 10
VSSOP | 8
X2QFN | 10    
SOIC | 8
SON | 8
VSSOP | 10
VSSOP | 8    
SC70 | 5     SOIC | 8
SOT-23 | 5
VSSOP | 8    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
See datasheet (SON)
10VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 10)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)
10X2QFN: 3 mm2: 2 x 1.5 (X2QFN | 10)    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
See datasheet (SON)
10VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 10)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
5SC70: 4 mm2: 2.1 x 2 (SC70 | 5)     8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
10     15     0.9       350    
30     50     65     50     60    
Zero Crossover     EMI Hardened
Small Size    
EMI Hardened
Shutdown
Small Size
Zero Crossover    
EMI Hardened     EMI Hardened
High Cload Drive
Zero Crossover
Zero Drift    
CMOS     CMOS     CMOS     CMOS     CMOS