Overview
The AD977BRSZ is a high-speed, 16-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD977/AD977A family, known for its low power consumption and high throughput rates. The AD977BRSZ operates from a single 5 V supply and features a successive approximation, switched capacitor architecture. It is factory calibrated to minimize linearity errors and is available in a 28-lead Skinny SSOP package.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 16 |
| Sampling Rate (Per Second) | 200 kSPS |
| Number of Inputs | 1 |
| Input Type | Single Ended |
| Data Interface | SPI |
| Architecture | SAR (Successive Approximation Register) |
| Reference Type | External, Internal |
| Voltage - Supply, Analog | 5 V |
| Voltage - Supply, Digital | 5 V |
| Operating Temperature | -40°C to +85°C |
| Package / Case | 28-SSOP (0.209", 5.30mm Width) |
| Power Dissipation | 100 mW Max |
| Power-Down Mode | 50 µW |
Key Features
- Fast throughput rate of 200 kSPS for the AD977A model (100 kSPS for the AD977 model)
- Single 5 V supply operation
- Low power dissipation of 100 mW maximum and 50 µW in power-down mode
- Input ranges: unipolar (0 V–10 V, 0 V–5 V, 0 V–4 V) and bipolar (±10 V, ±5 V, ±3.3 V)
- Choice of external or internal 2.5 V reference
- High-speed serial interface
- On-chip clock
- Factory calibrated to minimize linearity errors
Applications
- Automatic test equipment
- Process control and industrial automation
- High-speed data acquisition systems
- Medical imaging and diagnostics
- Aerospace and defense applications requiring high precision and reliability
Q & A
- What is the sampling rate of the AD977BRSZ? The AD977BRSZ has a sampling rate of 200 kSPS.
- What is the number of bits in the AD977BRSZ? The AD977BRSZ is a 16-bit ADC.
- What type of package does the AD977BRSZ come in? The AD977BRSZ comes in a 28-lead Skinny SSOP package.
- What is the operating temperature range of the AD977BRSZ? The operating temperature range is -40°C to +85°C.
- Does the AD977BRSZ support both external and internal references? Yes, it supports both external and internal 2.5 V references.
- What is the power dissipation of the AD977BRSZ? The power dissipation is 100 mW maximum, and 50 µW in power-down mode.
- What are the input ranges for the AD977BRSZ? The input ranges include unipolar (0 V–10 V, 0 V–5 V, 0 V–4 V) and bipolar (±10 V, ±5 V, ±3.3 V).
- What type of data interface does the AD977BRSZ use? The AD977BRSZ uses a high-speed SPI interface.
- Is the AD977BRSZ factory calibrated? Yes, the AD977BRSZ is factory calibrated to minimize linearity errors.
- What are some common applications of the AD977BRSZ? Common applications include automatic test equipment, process control, industrial automation, and high-speed data acquisition systems.
