Overview
The ADS5407IZAYR, produced by Texas Instruments, is a high-performance dual-channel 12-bit analog-to-digital converter (ADC) designed for applications requiring high linearity and wide bandwidth. This device operates at a maximum clock rate of 500 MSPS, making it suitable for various high-speed data acquisition and signal processing tasks. The ADS5407 features an analog input buffer with high impedance, which isolates the internal switching of the on-chip track-and-hold from the signal source, ensuring minimal disturbance. The device is available in a 196-pin BGA package and is specified over the full industrial temperature range of –40°C to 85°C.
Key Specifications
| Parameter | Typical Value | Units |
|---|---|---|
| Resolution | 12 | Bits |
| Sampling Rate | 500 | MSPS |
| Analog Input Full-Scale | 1.25 | Vpp |
| Input Bandwidth (3dB) | >1.0 GHz | |
| Signal to Noise Ratio (SNR) at fIN = 230 MHz | 63.7 | dBFS |
| Spurious-Free Dynamic Range (SFDR) at fIN = 230 MHz | 77 | dBc |
| Power Dissipation per Channel (Auto Correction Disabled) | 675 | mW |
| Package Type | 196-Pin BGA (12 x 12mm) | |
| Operating Temperature Range | –40°C to 85°C |
Key Features
- Dual-channel 12-bit ADC with a maximum sampling rate of 500 MSPS.
- High linearity and low noise performance, making it suitable for high SFDR applications.
- Analog input buffer with high impedance to minimize signal source disturbance.
- Optional 2x decimation with low pass or high pass filter.
- Data output interface via DDR LVDS.
- Internal interleaving correction logic to improve timing mismatch between ADCs.
- Fast over-range indication on OVRA/B pins, configurable via SPI register writes.
- Auto correction loop for DC offset and gain correction, enabled via SPI register writes.
Applications
- Test and Measurement Instrumentation
- Ultra-Wide Band Software Defined Radio
- Data Acquisition
- Power Amplifier Linearization
- Signal Intelligence and Jamming
- Radar and Satellite Systems
- Microwave Receivers
Q & A
- What is the maximum sampling rate of the ADS5407?
The maximum sampling rate of the ADS5407 is 500 MSPS.
- How many channels does the ADS5407 have?
The ADS5407 is a dual-channel ADC.
- What is the resolution of the ADS5407?
The resolution of the ADS5407 is 12 bits.
- What is the typical signal to noise ratio (SNR) of the ADS5407 at 230 MHz input frequency?
The typical SNR at 230 MHz input frequency is 63.7 dBFS.
- What is the spurious-free dynamic range (SFDR) of the ADS5407 at 230 MHz input frequency?
The SFDR at 230 MHz input frequency is typically 77 dBc.
- How does the ADS5407 handle over-range input signals?
The ADS5407 provides a fast over-range indication on the OVRA/B pins, which can be configured via SPI register writes.
- What is the power dissipation per channel of the ADS5407 when auto correction is disabled?
The power dissipation per channel is typically 675 mW when auto correction is disabled.
- In what package is the ADS5407 available?
The ADS5407 is available in a 196-pin BGA package (12 x 12mm).
- What is the operating temperature range of the ADS5407?
The operating temperature range is –40°C to 85°C.
- What type of data output interface does the ADS5407 use?
The ADS5407 uses a DDR LVDS data output interface.
