11MHz 单电源、低噪声、精密轨至轨输出 JFET 放大器 - OPA140

OPA140 (正在供货)

11MHz 单电源、低噪声、精密轨至轨输出 JFET 放大器

 

描述

The OPA140, OPA2140, and OPA4140 operational amplifier (op amp) family is a series of low-power JFET input amplifiers that features good drift and low input bias current. The rail-to-rail output swing and input range that includes V– allow designers to take advantage of the low-noise characteristics of JFET amplifiers while also interfacing to modern, single-supply, precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).

The OPA140 achieves 11-MHz unity-gain bandwidth and 20-V/µs slew rate while consuming only 1.8 mA (typical) of quiescent current. It runs on a single 4.5-V to 36-V supply or dual ±2.25-V to ±18-V supplies.

All versions are fully specified from –40°C to 125°C for use in the most challenging environments. The OPA140 (single) is available in the 5-pin SOT-23, 8-pin VSSOP, and 8-pin SOIC packages; the OPA2140 (dual) is available in both 8-pin VSSOP and 8-pin SOIC packages; and the OPA4140 (quad) is available in the 14-pin SOIC and 14-pin TSSOP packages.

特性

  • Very Low Offset Drift: 1 µV/°C Maximum
  • Very Low Offset: 120 µV
  • Low Input Bias Current: 10 pA Maximum
  • Very Low 1/f Noise: 250 nVPP, 0.1 Hz to 10 Hz
  • Low Noise: 5.1 nV/√Hz
  • Slew Rate: 20 V/µs
  • Low Supply Current: 2 mA Maximum
  • Input Voltage Range Includes V– Supply
  • Single-Supply Operation: 4.5 V to 36 V
  • Dual-Supply Operation: ±2.25 V to ±18 V
  • No Phase Reversal
  • Industry-Standard SOIC Packages
  • VSSOP, TSSOP, and SOT-23 Packages

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参数 与其它产品相比 精密 运算放大器

 
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
OPA140 OPA141 OPA145
1    1    1   
4.5    4.5    4.5   
36    36    36   
11    10    5.5   
20    20    20   
In to V-
Out   
In to V-
Out   
In to V-
Out   
0.12    3.5    0.15   
0.35    2    0.4   
1.8    1.8    0.445   
5.1    6.5    7   
140    126    140   
Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125   
SOIC
SOT-23
VSSOP   
SOIC
VSSOP   
SOIC   
8SOIC: 29 mm2: 6 x 4.9(SOIC)
5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
8SOIC: 29 mm2: 6 x 4.9(SOIC)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
8SOIC: 29 mm2: 6 x 4.9(SOIC)   
10    20    10   
30    30    20   
N/A    N/A    N/A   
FET    FET    FET   

WEBENCH® Designer OPA140

Amplifier Topology
 Non-inverting
 Inverting
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 4.5 to 36.0 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -40.0 °C
Maximum Temperature = 125.0 °C