ADA4945-1
FEATURES
- Broad power supply range: 3 V to 10 V
- Wide input mon-mode voltage range:
- VS to +VS
- 1.3 V
- Rail-to-rail output
- Fully specified dual power mode operation
- 4 m A full power mode (145 MHz)
- 1.4 m A low power mode (80 MHz)
- Full power mode
- Low harmonic distortion
- - 133 d Bc HD2 and
- 140 d Bc HD3 at 1 k Hz
- - 133 d Bc HD2 and
- 116 d Bc HD3 at 100 k Hz
- Fast settling time
- 18-bit: 100 ns
- 16-bit: 50 ns
- Input voltage noise: 2.0 n V/√Hz, f = 100 k Hz
- ±115 μV maximum offset voltage from
- 40°C to +125°C
- Adjustable output clamps for ADC input protection
APPLICATIONS
- Low power Σ-Δ, Pul SAR®, and SAR ADC drivers
- Single-ended to differential converters
- Differential buffers
- Medical imaging
- Process control
- Portable electronics
GENERAL DESCRIPTION
The ADA4945-1 is a low-noise, low-distortion, fully differential amplifier with two selectable power modes. The device operates over a broad power supply range of 3 V to 10 V. The low DC offset, DC offset drift, and...
