Overview
The AD9238BSTRL-20 is a high-performance, 12-bit, dual analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD9238 series, which features dual high-performance sample-and-hold amplifiers (SHAs) and an integrated voltage reference. The AD9238 is designed for various high-speed data acquisition applications, offering flexibility in terms of sampling rates and power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rates | 20 MSPS, 40 MSPS, 65 MSPS |
| Supply Voltage | Single 3 V supply (2.7 V to 3.6 V) |
| Power Consumption | 180 mW (20 MSPS), 330 mW (40 MSPS), 600 mW (65 MSPS) |
| Input Range | 1 V p-p to 2 V p-p |
| Input Bandwidth | 500 MHz, 3 dB bandwidth |
| Signal-to-Noise Ratio (SNR) | 70 dB (to Nyquist, AD9238-65) |
| Spurious Free Dynamic Range (SFDR) | 80.5 dBc (to Nyquist, AD9238-65) |
| Channel Isolation | Typical of 85 dB @ fIN = 10 MHz |
| Operating Temperature | –40°C to +85°C |
| Package Type | 64-Lead Low Profile Quad Flat Pack (LQFP) |
Key Features
- Integrated dual 12-bit ADCs with independent sample-and-hold amplifiers.
- Multi-stage differential pipelined architecture with output error correction logic.
- Flexible analog input: 1 V p-p to 2 V p-p range, differential or single-ended modes.
- Offset binary or two's complement data format.
- Clock duty cycle stabilizer and output data multiplexing option.
- Low power consumption with adjustable output voltage swing.
- Exceptional crosstalk immunity.
- Pin-compatible with the AD9248, 14-bit ADC.
Applications
- Ultrasound equipment.
- Direct conversion or IF sampling receivers.
- WB-CDMA, CDMA2000, WiMAX.
- Battery-powered instruments.
- Hand-held oscilloscopes and low-cost digital oscilloscopes.
Q & A
- What is the resolution of the AD9238BSTRL-20? The AD9238BSTRL-20 has a resolution of 12 bits.
- What are the available sampling rates for the AD9238BSTRL-20? The available sampling rates are 20 MSPS, 40 MSPS, and 65 MSPS.
- What is the supply voltage range for the AD9238BSTRL-20? The supply voltage range is 2.7 V to 3.6 V.
- How much power does the AD9238BSTRL-20 consume at different sampling rates? The power consumption is 180 mW at 20 MSPS, 330 mW at 40 MSPS, and 600 mW at 65 MSPS.
- What is the input range of the AD9238BSTRL-20? The input range is 1 V p-p to 2 V p-p.
- What is the signal-to-noise ratio (SNR) of the AD9238BSTRL-20? The SNR is 70 dB (to Nyquist, AD9238-65).
- What is the spurious free dynamic range (SFDR) of the AD9238BSTRL-20? The SFDR is 80.5 dBc (to Nyquist, AD9238-65).
- What is the typical channel isolation of the AD9238BSTRL-20? The typical channel isolation is 85 dB @ fIN = 10 MHz.
- What is the operating temperature range of the AD9238BSTRL-20? The operating temperature range is –40°C to +85°C.
- In what package type is the AD9238BSTRL-20 available? The AD9238BSTRL-20 is available in a 64-Lead Low Profile Quad Flat Pack (LQFP).
