OPA2320 Precision, Zero-Crossover, 20MHz, 0.9pA Ib, RRIO, CMOS Operational Amplifier | TI.com

OPA2320 (ACTIVE)

Precision, Zero-Crossover, 20MHz, 0.9pA Ib, RRIO, CMOS Operational Amplifier

Precision, Zero-Crossover, 20MHz, 0.9pA Ib, RRIO, CMOS Operational Amplifier - OPA2320
 

Special note

Shutdown version available: See orderable part number OPA2320SAIDGS. In shutdown, Iq =0.1uA/ch

Description

The OPA320 (single) and OPA2320 (dual) are a new generation of precision, low-voltage CMOS operational amplifiers optimized for very low noise and wide bandwidth while operating on a low quiescent current of only 1.45 mA.

The OPA320 series is ideal for low-power, single- supply applications. Low-noise (7 nV/√Hz) and high- speed operation also make them well-suited for driving sampling analog-to-digital converters (ADCs). Other applications include signal conditioning and sensor amplification.

The OPA320 features a linear input stage with zero- crossover distortion that delivers excellent common- mode rejection ratio (CMRR) of typically 114 dB over the full 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.

In addition, the OPAx320 has a wide supply voltage range from 1.8 V to 5.5 V with excellent PSRR (106 dB) over the entire supply range, making them suitable for precision, low-power applications that run directly from batteries without regulation.

The OPA320 (single version) is available in a 5-pin SOT23 package; the OPA320S shutdown single version is available in an 6-pin SOT23 package. The dual OPA2320 is offered in 8-pin SOIC, VSSOP, and SON packages, and the OPA2320S (dual with shutdown) in a 10-pin VSSOP package.

Features

  • Precision with Zero-Crossover Distortion:
    • Low Offset Voltage: 150 µV (Maximum)
    • High CMRR: 114 dB
    • Rail-to-Rail I/O
  • Low Input Bias Current: 0.9 pA (Maximum)
  • Low Noise: 7 nV/√Hz at 10 kHz
  • Wide Bandwidth: 20 MHz
  • Slew Rate: 10 V/µs
  • Quiescent Current: 1.45 mA/Ch
  • Single-Supply Voltage Range: 1.8 V to 5.5 V
  • OPA320S and OPA2320S:
    • IQ in Shutdown Mode: 0.1 µA
  • Unity-Gain Stable
  • Small Packages:
    • SOT-23, VSSOP, SON, and SOIC

View more

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
OPA2320 OPA2316 OPA2320-Q1 OPA2325 OPA320 OPA320-Q1
2     2     2     2     1     1    
1.8     1.8     1.8     2.2     1.8     1.8    
5.5     5.5     5.5     5.5     5.5     5.5    
20     10     20     10     20     20    
10     6     10     5     10     10    
In
Out    
In
Out    
In
Out    
In
Out    
In
Out    
In
Out    
0.15     2.5     0.15     0.15     0.15     0.15    
1.5     2     1.5     2     1.5     1.5    
1.5     0.4     1.5     0.65     1.5     1.5    
8.5     11     8.5     10     8.5     8.5    
114     80     114     114     114     114    
Catalog     Catalog     Automotive     Catalog     Catalog     Automotive    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
SOIC
SON
VSSOP
VSSOP    
SOIC
SON
VSSOP
VSSOP
X2QFN    
VSSOP     SOIC
VSSOP    
SOT-23
SOT-23    
SOT-23    
8SOIC: 29 mm2: 6 x 4.9(SOIC)
See datasheet (SON)
10VSSOP: 15 mm2: 4.9 x 3(VSSOP)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)    
8SOIC: 29 mm2: 6 x 4.9(SOIC)
See datasheet (SON)
10VSSOP: 15 mm2: 4.9 x 3(VSSOP)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)
10X2QFN: 3 mm2: 2 x 1.5(X2QFN)    
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)     8SOIC: 29 mm2: 6 x 4.9(SOIC)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)    
5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)
6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)    
5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)    
0.9     15     0.9     10     0.9     0.9    
65     50     65     30     65     65    
EMI Hardened
Shutdown
Small Size
Zero Crossover    
EMI Hardened
Small Size    
EMI Hardened
Zero Crossover    
Zero Crossover     EMI Hardened
Shutdown
Zero Crossover    
EMI Hardened
Shutdown
Zero Crossover    
CMOS     CMOS     CMOS     CMOS     CMOS     CMOS    

Other qualified versions of OPA2320

Version Part Number Definition
Automotive OPA2320-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects

WEBENCH® Designer OPA2320

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