Overview
The ADS4229IRGCR is a dual-channel, 12-bit analog-to-digital converter (ADC) produced by Texas Instruments. This device is part of the ultralow-power ADC family and is designed for high-performance applications. It operates at a sampling rate of 250 MSPS and is well-suited for multi-carrier, wide-bandwidth communications. The ADS4229IRGCR features programmable gain options, a dc offset correction loop, and supports both low-voltage differential signaling (LVDS) and parallel complementary metal oxide semiconductor (CMOS) digital output interfaces. It is packaged in a compact 9-mm × 9-mm, 64-Pin Quad Flat No-Lead (QFN) package and is specified over the industrial temperature range of –40°C to +85°C.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Resolution | 12 | - | - | Bits |
| Sampling Rate | - | 250 | - | MSPS |
| Supply Voltage (AVDD) | -0.3 | 1.8 | 2.1 | V |
| Supply Voltage (DRVDD) | -0.3 | 1.8 | 2.1 | V |
| Differential Input Voltage Range | - | - | 2 | VPP |
| Signal-to-Noise Ratio (SNR) at 170 MHz | - | 69.4 | - | dBFS |
| Spurious-Free Dynamic Range (SFDR) at 170 MHz | - | 80.8 | - | dBc |
| Operating Temperature Range | -40 | - | 85 | °C |
| Analog Supply Current (IAVDD) | 167 | 190 | - | mA |
| Output Buffer Supply Current (IDRVDD) - LVDS | 136 | 160 | - | mA |
| Output Buffer Supply Current (IDRVDD) - CMOS | 94 | - | - | mA |
Key Features
- Ultralow power consumption with a single 1.8-V supply.
- Programmable gain up to 6 dB to improve SNR and SFDR performance.
- DC offset correction loop to cancel ADC offset.
- Support for both LVDS and parallel CMOS digital output interfaces.
- Internal references with eliminated traditional reference pins and decoupling capacitors.
- Compact 9-mm × 9-mm, 64-Pin Quad Flat No-Lead (QFN) package.
- Specified over the industrial temperature range of –40°C to +85°C.
- High SFDR and SNR performance, making it suitable for multi-carrier, wide-bandwidth communications applications.
Applications
- Wireless Communications Infrastructure
- Software Defined Radio (SDR)
- Power Amplifier Linearization
- Other high-performance, wide-bandwidth signal processing applications.
Q & A
- What is the sampling rate of the ADS4229IRGCR?
The ADS4229IRGCR has a sampling rate of 250 MSPS.
- What are the supported output interfaces for the ADS4229IRGCR?
The device supports both LVDS and parallel CMOS digital output interfaces.
- What is the power supply voltage for the ADS4229IRGCR?
The device operates with a single 1.8-V supply for both AVDD and DRVDD.
- What is the typical SNR performance of the ADS4229IRGCR at 170 MHz?
The typical SNR performance is 69.4 dBFS at 170 MHz.
- What is the SFDR performance of the ADS4229IRGCR at 170 MHz?
The SFDR performance is 80.8 dBc at 170 MHz.
- Does the ADS4229IRGCR have programmable gain options?
Yes, the device has programmable gain options up to 6 dB.
- What is the operating temperature range for the ADS4229IRGCR?
The device is specified over the industrial temperature range of –40°C to +85°C.
- What is the package type and size of the ADS4229IRGCR?
The device is packaged in a 9-mm × 9-mm, 64-Pin Quad Flat No-Lead (QFN) package.
- What are some typical applications for the ADS4229IRGCR?
Typical applications include wireless communications infrastructure, software defined radio (SDR), and power amplifier linearization.
- Does the ADS4229IRGCR have internal references?
Yes, the device includes internal references with eliminated traditional reference pins and decoupling capacitors.
