Overview
The ADS5231IPAGT, produced by Texas Instruments, is a dual-channel, 12-bit, 40 MSPS (Mega Samples Per Second) analog-to-digital converter (ADC). This high-speed, high dynamic range ADC is designed for demanding applications requiring excellent signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR). The device operates on a single +3.3V supply and features an internal or external reference option, allowing for flexible input range settings. The ADS5231IPAGT is housed in a TQFP-64 package and is suitable for various high-performance applications.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 12 bits | |||
| Sample Rate | 20 | 40 | MSPS | |
| Supply Voltage (AVDD) | 3.0 | 3.3 | 3.6 | V |
| Output Driver Supply Voltage (VDRV) | 3.0 | 3.3 | 3.6 | V |
| Signal-to-Noise Ratio (SNR) at fIN = 5MHz | 70.7 dBFS | |||
| Differential Nonlinearity (DNL) | -0.9 | ±0.3 | +0.9 | LSB |
| Integral Nonlinearity (INL) | -2.5 | ±0.4 | +2.5 | LSB |
| Analog Input Common-Mode Range | ±0.05 V | |||
| Power Dissipation (Internal Reference) | 235.5 | 271 | mW | |
Key Features
- High-speed, 12-bit pipelined ADC with a maximum sample rate of 40 MSPS.
- High SNR of 70.7 dBFS at an input frequency of 5 MHz.
- Internal or external reference options with a flexible input range setting.
- Low differential nonlinearity (DNL) and integral nonlinearity (INL) for excellent linearity.
- Internal error correction logic for improved accuracy.
- Over-range indicator flag to signal input signals exceeding the full-scale range.
- Output enable pin for multiplexing and testing on PCB.
- 3-state output and sample-and-hold amplifier for reduced even-order harmonics and common-mode noise immunity.
- CMOS-compatible digital outputs and serial interface.
Applications
- Communications IF Processing and Base Stations.
- Test Equipment.
- Medical Imaging.
- Video Digitizing.
- CCD Digitizing.
Q & A
- What is the maximum sample rate of the ADS5231IPAGT?
The maximum sample rate of the ADS5231IPAGT is 40 MSPS.
- What is the resolution of the ADS5231IPAGT?
The resolution of the ADS5231IPAGT is 12 bits.
- What are the supply voltage ranges for the ADS5231IPAGT?
The supply voltage ranges are 3.0V to 3.6V for both AVDD and VDRV.
- Does the ADS5231IPAGT support internal or external references?
Yes, the ADS5231IPAGT supports both internal and external reference options.
- What is the signal-to-noise ratio (SNR) of the ADS5231IPAGT at 5 MHz input frequency?
The SNR at 5 MHz input frequency is 70.7 dBFS.
- What is the typical power dissipation of the ADS5231IPAGT with an internal reference?
The typical power dissipation with an internal reference is 271 mW.
- What package type is the ADS5231IPAGT available in?
The ADS5231IPAGT is available in a TQFP-64 package.
- What are some common applications of the ADS5231IPAGT?
Common applications include communications IF processing, test equipment, medical imaging, video digitizing, and CCD digitizing.
- Does the ADS5231IPAGT have an over-range indicator?
Yes, the ADS5231IPAGT has an over-range indicator flag to signal input signals exceeding the full-scale range.
- Is the ADS5231IPAGT compatible with CMOS logic?
Yes, the ADS5231IPAGT has CMOS-compatible digital outputs.
