Overview
The AD9690BCPZ-500 is a 14-bit, high-speed analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for sampling wide bandwidth analog signals up to 2 GHz, making it ideal for applications requiring high sampling rates, excellent linearity, and low power consumption in a compact package. The AD9690 features an on-chip buffer and sample-and-hold circuit, optimized for low power and ease of use. It is particularly suited for communications, radar, and other high-performance signal processing systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14 bits | |
| Sampling Rate | 1 GSPS / 500 MSPS | |
| Effective Number of Bits (ENOB) | 10.8 bits at 10 MHz | |
| Differential Nonlinearity (DNL) | ±0.5 LSB | |
| Integral Nonlinearity (INL) | ±2.5 LSB | |
| Noise Density | −154 dBFS/Hz at 1 GSPS | |
| Supply Voltage | 1.25 V, 2.5 V, 3.3 V | V |
| Analog Input Range | 1.46 V p-p to 2.06 V p-p (nominal 2.06 V p-p for AD9690-500) | V p-p |
| Termination Impedance | 400 Ω, 200 Ω, 100 Ω, 50 Ω differential | Ω |
| Analog Input Bandwidth | 2 GHz | Hz |
| Operating Temperature | −40°C to +85°C | °C |
Key Features
- Multistage, differential pipelined ADC architecture with integrated output error correction logic.
- Wide bandwidth inputs supporting user-selectable input ranges.
- Integrated voltage reference for ease of design.
- Differential analog input and clock signals.
- Two integrated wideband digital down-converters (DDCs) each with a 12-bit frequency translator (NCO) and four half-band decimation filters.
- Programmable threshold detector for automatic gain control (AGC) implementation.
- Flexible JESD204B lane configurations (one, two, or four lanes).
- Multiple device synchronization through SYSREF± and SYNCINB± input pins.
- Flexible power-down options for power savings.
- 3-wire SPI interface for configuration.
Applications
- Communications systems, including wireless base stations and software-defined radios.
- Radar systems, both military and civilian.
- High-performance signal processing systems.
- Medical imaging and diagnostic equipment.
- Aerospace and defense applications requiring high-speed ADCs.
Q & A
- What is the resolution and sampling rate of the AD9690BCPZ-500?
The AD9690BCPZ-500 is a 14-bit ADC with sampling rates of up to 1 GSPS or 500 MSPS.
- What is the effective number of bits (ENOB) of the AD9690 at 10 MHz?
The ENOB of the AD9690 at 10 MHz is 10.8 bits.
- What are the supply voltage options for the AD9690?
The AD9690 can operate with supply voltages of 1.25 V, 2.5 V, and 3.3 V.
- What is the analog input bandwidth of the AD9690?
The analog input bandwidth of the AD9690 is up to 2 GHz.
- Does the AD9690 support multiple device synchronization?
- What is the purpose of the programmable threshold detector in the AD9690?
The programmable threshold detector is used for monitoring the incoming signal power and implementing automatic gain control (AGC) in communications receivers.
- What are the JESD204B lane configuration options for the AD9690?
The AD9690 supports JESD204B lane configurations of one, two, or four lanes.
- How can the AD9690 be configured?
The AD9690 can be configured using a 3-wire SPI interface.
- What are the operating temperature ranges for the AD9690?
The AD9690 operates within a temperature range of −40°C to +85°C.
- What types of applications is the AD9690 typically used in?
The AD9690 is typically used in communications systems, radar systems, high-performance signal processing systems, medical imaging, and aerospace and defense applications.
