OPA699 OPA699: Wideband, High Gain Voltage Limiting Amplifier | TI.com

OPA699
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OPA699: Wideband, High Gain Voltage Limiting Amplifier

OPA699: Wideband, High Gain Voltage Limiting Amplifier - OPA699
Datasheet
 

Description

The OPA699 is a wideband, voltage-feedback op amp that offers bipolar output voltage limiting, and is stable for gains +4. Two buffered limiting voltages take control of the output when it attempts to drive beyond these limits. This new output limiting architecture holds the limiter offset error to ±10mV. The op amp operates linearly to within 20mV of the limits.

The combination of narrow nonlinear range and low limiting offset allows the limiting voltages to be set within 100mV of the desired linear output range. A fast 1ns recovery from limiting ensures that overdrive signals will be transparent to the signal channel. Implementing the limiting function at the output, as opposed to the input, gives the specified limiting accuracy for any gain, and allows the OPA699 to be used in all standard op amp applications.

Nonlinear analog signal processing circuits will benefit from the OPA699 sharp transition from linear operation to output limiting. The quick recovery time supports high-speed applications.

The OPA699 is available in an industry-standard pinout in an SO-8 package. For lower gain applications requiring output limiting with fast recovery, consider the OPA698.

Features

  • HIGH LINEARITY NEAR LIMITING
  • FAST RECOVERY FROM OVERDRIVE: 1ns
  • LIMITING VOLTAGE ACCURACY: ±10mV
  • –3dB BANDWIDTH (G = +6): 260MHz
  • GAIN BANDWIDTH PRODUCT: 1000MHz
  • STABLE FOR G +4V/V
  • SLEW RATE: 1400V/µs
  • ±5V AND +5V SUPPLY OPERATION
  • LOW GAIN VERSION: OPA698
  • APPLICATIONS
    • TRANSIMPEDANCE WITH FAST OVERDRIVE RECOVERY
    • FAST LIMITING ADC INPUT DRIVER
    • LOW PROP DELAY COMPARATOR
    • NONLINEAR ANALOG SIGNAL PROCESSING
    • DIFFERENCE AMPLIFIER
    • IF LIMITING AMPLIFIER
    • OPA689 UPGRADE

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Parametrics

Compare all products in High-speed op amps (GBW>=50MHz) Email Download to Excel
Part number Order 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 1 kHz (Typ) (nV/rtHz) Iq per channel (Typ) (mA) Vos (offset voltage @ 25 C) (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
OPA699 Order now Voltage FB     1     5     12     260     4     1400     4.1     13     15.5     5     No     Integrated Clamps
Decompensated    
Catalog     -40 to 85     SOIC | 8     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)     61     10000000     15     1000     120     67     87     5