OPA2846 - Dual, Wideband, Low-Noise, Voltage-Feedback Operational Amplifier

Updated : 2020-01-09 14:17:51
Description

The OPA2846 provides two very low-noise, high gain bandwidth, voltage-feedback op amps in a single package. Operating from a low 12.6mA/channel quiescent current, each channel provides a 1.2nV/Hz input voltage noise with a 1.65GHz gain bandwidth product. Minimum stable gain is specified at +7V/V while exceptional flatness is ensured at a gain of +10V/V.

The combination of low noise, high slew rate (600V/µs) and broad bandwidth allow very high SFDR differential receivers to be implemented. Additionally, decompensated, low-noise, voltage-feedback op amps are ideal for broadband transimpedance requirements. The dual channel OPA2846 provides matched channels for high-speed transimpedance requirements. With over 200MHz bandwidth at a gain of 20dB, excellent gain and phase matching are provided at IF frequencies for matched I and Q channel amplifiers.

Products containing the "OPA2846" keyword are: OPA2846ID , OPA2846ID , OPA2846IDG4 , OPA2846IDR , OPA2846IDR , OPA2846IDRG4
Features

  • HIGH BANDWIDTH: 300MHz (G = +10)
  • LOW INPUT VOLTAGE NOISE: 1.2nV/Hz
  • VERY LOW DISTORTION: –100dBc (5MHz)
  • HIGH SLEW RATE: 600V/µs
  • HIGH DC ACCURACY: VIO = 150µV
  • LOW SUPPLY CURRENT: 12.6mA/ch
  • HIGH GAIN BANDWIDTH PRODUCT: 1650MHz
  • STABLE FOR GAINS +7V/V
  • APPLICATIONS
    • HIGH DYNAMIC RANGE ADC PREAMPS
    • LOW-NOISE, WIDEBAND, TRANSIMPEDANCE AMPLIFIERS
    • WIDEBAND, HIGH GAIN AMPLIFIERS
    • LOW-NOISE DIFFERENTIAL RECEIVERS
    • VDSL LINE RECEIVERS
    • ULTRASOUND CHANNEL AMPLIFIERS
    • SECURITY SENSOR FRONT ENDS

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Parametrics
StatusACTIVE
ArchitectureBipolar^Voltage FB
Number of channels2
Total Supply Voltage12
BW @ Acl500
Acl, min spec gain7
Slew Rate625
Vn at flatband1.2
Vn at 1 kHz1.2
Iq per channel12.6
Vos (offset voltage @ 25 C)0.65
Rail-to-railNo
FeaturesDecompensated
RatingCatalog
Operating temperature range-40 to 85
Package GroupSOIC|8
Approx. price3.20 | 1ku
Package size: mm2:W x L (PKG)[pf]8SOIC[/pf]: 29 mm2: 6 x 4.9 (SOIC|8)
CMRR110
Input bias current20000000
Offset drift1.6
GBW1750
Output current80
2nd harmonic76
3rd harmonic109
@ MHz5
Radiation, TID
Radiation, SEL