MAX40087
Single/Dual/Quad Ultra-Low Input Bias Current, Low-Noise Amplifiers
Combination of Low Input Bias Current, Very Low Noise and Tiny Size Makes These Amps Great for Precision Applications
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Overview
Features and Benefits
- Low Input Voltage Noise Density: 4.2nV/
at 30KHz
- Low Input Current Noise Density: 0.5fA/
- Low Input Bias Current: 0.3pA (typ)
- Low Distortion: 0.00035% or -109dB THD+N (1kΩ Load)
- Single-Supply Operation from +2.7V to +5.5V
- Input Common-Mode Voltage Range Includes Ground
- Rail-to-Rail Output Swings with a 1kΩLoad
- Wide Bandwidth: MAX 40079/MAX40077/MAX40078 (10MHz); MAX40087/MAX40089 (42MHz)
- Excellent DC Characteristics: VOS ≤ 30µV
- Single-Channel 6-bump WLP in 1.31mm x 0.73mm with 0.35mm Bump Pitch
- Dual-Channel 8-bump WLP in 0.96mm x 1.66mm with 0.35mm Bump Pitch
- Available in Space-Saving 6-WLP, 6-SOT, 8-WLP, and µMAX Packages
Product Details
The MAX40079/MAX40087/MAX40077/MAX40089/MAX40078 are wide band, low-noise, low-input bias current operational amplifiers that offer rail-to-rail outputs and single-supply operation from 2.7V to 5.5V. These low-noise amps draw 2.2mA of quiescent supply current per amplifier. This family of amplifiers offers ultra-low distortion (0.0002% THD+N), as well as low input voltage-noise density (4.2nV/√Hz) and low input current-noise density (0.5fA/√Hz). The low input bias current of 0.3pA (typ) and low noise (4.5nV/√Hz), together with the wide bandwidth, provides excellent performance for trans-impedance (TIA) and imaging applications.
These amplifiers have outputs which swing rail-to-rail and their input common-mode voltage range includes ground. The MAX40079/MAX40077/MAX40078 are single/dual/quad respectively in unity-gain stable with a bandwidth of 10MHz. The MAX40087/MAX40089 are single/dual respectively with gain ≥ 5 stable and bandwidth of 42MHz. They operate over the full -40°C to +125°C temperature range.
Single channel op amps are available in 6-bump wafer-level package (WLP) and SOT23 6-pin packages. The dual channel op amps are available in 8-bump WLP and µMAX-8 packages. The quad channel option is available in 14-TSSOP package.
Applications
- ADC Buffers
- DAC Output Amplifiers
- Digital Scales
- Low-Noise Microphone/Preamplifiers
- Medical Instrumentation
- pH Probes and Reference Electrodes
- Strain Gauges/Sensor Amplifiers
- Transimpedance Amplifiers
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.