OPA695

Ultra-Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable

FEATURES

● GAIN = +2 BANDWIDTH (1400MHz)

● GAIN = +8 BANDWIDTH (450MHz)

● OUTPUT VOLTAGE SWING: ±4.2V

● ULTRA-HIGH SLEW RATE: 4300V/µs

● 3RD-ORDER INTERCEPT: > 40dBm (f < 50MHz)

● LOW POWER: 129mW

● LOW DISABLED POWER: 0.5mW

APPLICATIONS

● VERY WIDEBAND ADC DRIVER

● LOW-COST PRECISION IF AMPLIFIER

● BROADBAND VIDEO LINE DRIVER

● PORTABLE INSTRUMENTS

● ACTIVE FILTERS

● ARB WAVEFORM OUTPUT DRIVER

● OPA685 PERFORMANCE UPGRADE

DESCRIPTION

The OPA695 is a very high bandwidth, current-feedback op amp that combines exceptional 4300V/µs slew rate and low input voltage noise to deliver a precision low cost, high dynamic range Intermediate Frequency (IF) amplifier. Optimized for high gain operation, the OPA695 is ideally suited to buffering Surface Acoustic Wave (SAW) filters in an IF strip or delivering high output power at low distortion for cable modem upstream line drivers. Even higher bandwidth at lower gains gives a 1400MHz video line driver for high resolution RGB.

The OPA695’s low 12.9mA supply current is precisely trimmed at +25°C. This trim, along with a low temperature drift, gives low system power over temperature. System power may be further reduced using the optional disable control pin. Leaving this pin open, or holding it HIGH, gives normal operation. If pulled LOW, the OPA695 supply current drops to less than 170µA. This power-saving feature, along with exceptional single +5V operation and ultra-small SOT23-6 packaging, make the OPA695 ideal for portable applications.

ABSOLUTE MAXIMUM RATINGS⁽¹⁾

Power Supply ............................................................................... ±6.5V_DC

Internal Power Dissipation ..................................... See Thermal Analysis

Differential Input Voltage .................................................................. ±1.2V

Input Common-Mode Voltage Range ................................................. ±V_S

Storage Temperature Range: D, DBV ........................... –40°C to +125°C

Lead Temperature (soldering, 10s) .............................................. +300°C

Junction Temperature (T_J ) ........................................................... +150°C

ESD Rating

Human Body Model (HBM)⁽²⁾ .......................................................... 1500V

Charge Device Model (CDM) .......................................................... 1000V

Machine Model (MM) ......................................................................... 100V

NOTES:

(1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not supported.

(2) Pin 2 on SO-8 package and pin 4 on SOT23-6 package > 500V HBM.

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