1-mA, 300-MHz Gain Bandwidth, Voltage-Feedback Op Amp - OPA838

OPA838 (正在供货)

1-mA, 300-MHz Gain Bandwidth, Voltage-Feedback Op Amp

 

描述

The OPA838 decompensated voltage feedback operational amplifier provides a high 300-MHz gain bandwidth product with 1.8-nV/√Hz input noise voltage, requiring only a trimmed 0.95-mA supply current. These features combine to provide an extremely power-efficient solution for photodiode transimpedance designs and high-voltage gain stages, which require the lowest input voltage noise in signal receiver applications.

Operating at the minimum recommended noninverting gain of 6 V/V results in a 90-MHz, –3-dB bandwidth. Extremely low input noise and offset voltage make the OPA838 particularly suitable for high gains. Even at a DC-coupled gain of 1000 V/V, a 300-kHz signal bandwidth is available with a maximum output offset voltage of ±125 mV.

The single-channel OPA838 is available in a 6-pin SOT-23 package, 6-pin SC70 package (that includes a power shutdown feature) and 5-pin SC70 package.

特性

  • Gain Bandwidth Product: 300 MHz
  • Very-Low (Trimmed) Supply Current: 950 µA
  • Bandwidth: 90 MHz (AV = 6 V/V)
  • High Full-Power Bandwidth: 45 MHz, 4 VPP
  • Negative Rail Input, Rail-to-Rail Output
  • Single-Supply Operating Range: 2.7 V to 5.4 V
  • 25°C Input Offset: ±125 µV (Maximum)
  • Input Offset Voltage Drift: < ±1.6 µV/°C (Maximum)
  • Input Voltage Noise: 1.8 nV/√Hz (> 200 Hz)
  • Input Current Noise: 1 pA/√Hz (> 2000 Hz)
  • < 5-µA Shutdown Current for Power Savings

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参数 与其它产品相比 高速 运算放大器

 
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 1kHz (Typ) (nV/rtHz)
Iq per channel (Typ) (mA)
Vos (Offset Voltage @ 25C) (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
OPA838 OPA2835 OPA2836 OPA835 OPA836 OPA837
Bipolar
Voltage FB   
Bipolar
Voltage FB   
Bipolar
Voltage FB   
Bipolar
Voltage FB   
Bipolar
Voltage FB   
Voltage FB   
1    2    2    1    1    1   
2.7    2.5    2.5    2.5    2.5    2.7   
5.4    5.5    5.5    5.5    5.5    5.4   
90    56    205    56    205    105   
6    1    1    1    1    1   
350    160    560    160    560    105   
1.8    9.3    4.6    9.3    4.6    4.7   
1.8    10    4.6    9.3    4.6    4.7   
0.96    0.25    1    0.25    1    0.592   
0.125    0.5    0.4    0.5    0.4    0.13   
In to V-
Out   
In to V-
Out   
In to V-
Out   
In to V-
Out   
In to V-
Out   
In to V-
Out   
Small Size
Shutdown   
Shutdown    Small Size
Shutdown   
Small Size
Shutdown   
Small Size
Shutdown   
Small Size
Shutdown   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
SC70
SC70
SOT-23   
QFN
SOIC
UQFN
VSSOP   
QFN
SOIC
UQFN
VSSOP   
QFN
SOT-23   
QFN
SOT-23   
SC70
SOT-23   
5SC70: 4 mm2: 2.1 x 2(SC70)
6SC70: 4 mm2: 2.1 x 2(SC70)
6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)   
10QFN: 4 mm2: 2 x 2(QFN)
8SOIC: 29 mm2: 6 x 4.9(SOIC)
10UQFN: 4 mm2: 2 x 2(UQFN)
10VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
10QFN: 4 mm2: 2 x 2(QFN)
8SOIC: 29 mm2: 6 x 4.9(SOIC)
10UQFN: 4 mm2: 2 x 2(UQFN)
10VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
10QFN: 4 mm2: 2 x 2(QFN)
6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)   
10QFN: 4 mm2: 2 x 2(QFN)
6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)   
5SC70: 4 mm2: 2.1 x 2(SC70)
6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)   
105    113    116    113    116    110   
4400000    400000    1000000    400000    1000000    520000   
0.4    2.25    1.1    2.25    1.1    0.4   
300    30    120    30    120    50   
20    40    50    40    50    50   
-110    70    85    70    85    120   
-120    73    79    73    79    145   
1    1    1    1    1    0.1   

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