Overview
The AD9680BCPZ-1250 is a high-performance, dual 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is optimized for wide input bandwidth, high sampling rates, excellent linearity, and low power consumption, making it ideal for various high-speed data acquisition and communication applications. The AD9680 features a multistage, differential pipelined architecture with integrated output error correction logic and supports sampling rates of up to 1.25 GSPS. It includes an on-chip buffer and sample-and-hold circuit, designed for low power, small size, and ease of use.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14-bit | |
| Sampling Rate | Up to 1.25 GSPS | MSPS |
| Analog Input Full Power Bandwidth | 2 GHz | |
| SNR at 1 GSPS | 65.3 dBFS at 340 MHz, 60.5 dBFS at 1 GHz | dBFS |
| Noise Density | −154 dBFS/Hz at 1 GSPS | dBFS/Hz |
| DC Supply Operation | 1.25 V, 2.5 V, and 3.3 V | V |
| Input Range | 1.58 V p-p nominal (AD9680-1250) | V p-p |
| Programmable Termination Impedance | 400 Ω, 200 Ω, 100 Ω, and 50 Ω differential | Ω |
| Channel Isolation/Crosstalk | 95 dB | dB |
| Pipeline Latency | 55 clock cycles | clock cycles |
Key Features
- Dual 14-bit ADC with multistage, differential pipelined architecture and integrated output error correction logic.
- Supports sampling rates of up to 1.25 GSPS, 1 GSPS, 820 MSPS, and 500 MSPS.
- Internal ADC voltage reference and programmable termination impedance (400 Ω, 200 Ω, 100 Ω, and 50 Ω differential).
- 2 GHz usable analog input full power bandwidth and 95 dB channel isolation/crosstalk.
- Amplitude detect bits for efficient automatic gain control (AGC) implementation.
- Two integrated wideband digital processors per channel, each with a 12-bit frequency translator (NCO) and up to four half-band decimation filters.
- Differential clock input with integer clock divide by 1, 2, 4, or 8.
- Flexible JESD204B lane configurations.
Applications
- Spectrum analyzers
- Data acquisition systems
- Military electronics, such as radar and jamming/anti-jamming measures
- High-speed communication systems
- Medical imaging and diagnostic equipment
Q & A
- What is the maximum sampling rate of the AD9680BCPZ-1250?
The maximum sampling rate is up to 1.25 GSPS. - What is the resolution of the AD9680BCPZ-1250?
The resolution is 14-bit. - What is the analog input full power bandwidth of the AD9680BCPZ-1250?
The analog input full power bandwidth is 2 GHz. - Does the AD9680BCPZ-1250 have an internal voltage reference?
Yes, it has an internal ADC voltage reference. - What are the programmable termination impedances available on the AD9680BCPZ-1250?
The programmable termination impedances are 400 Ω, 200 Ω, 100 Ω, and 50 Ω differential. - How many integrated wideband digital processors are there per channel?
There are two integrated wideband digital processors per channel. - What is the channel isolation/crosstalk of the AD9680BCPZ-1250?
The channel isolation/crosstalk is 95 dB. - Does the AD9680BCPZ-1250 support JESD204B interface?
Yes, it supports flexible JESD204B lane configurations. - What are some typical applications of the AD9680BCPZ-1250?
Typical applications include spectrum analyzers, data acquisition systems, military electronics, and high-speed communication systems. - What is the pipeline latency of the AD9680BCPZ-1250?
The pipeline latency is 55 clock cycles.
