Overview
The AD1555BPRL, produced by Analog Devices Inc., is a 24-bit sigma-delta analog-to-digital converter (ADC) with a programmable gain amplifier (PGA). This component is designed for low-frequency, high dynamic range measurement applications. It features a continuous-time analog modulator input architecture, eliminating the need for an external antialias filter. The AD1555BPRL is part of the AD1555 series, which is known for its high performance, low noise, and robust input capabilities, making it ideal for various data acquisition systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| PGA Gain Settings | 1, 2.5, 8.5, 34, 128 | - | - | - |
| Input Range | -2.25 | - | 2.25 | V |
| Sampling Rate | - | 256 kSPS | - | - |
| Dynamic Range | 116 dB | 120 dB | - | - |
| Input Noise | - | 80 nV rms @ 4 ms with Gain of 34 | - | - |
| Common-Mode Rejection | 93 dB | 101 dB | - | - |
| Power Dissipation | - | 77 mW | - | - |
| Operating Temperature | -55°C | - | 85°C | - |
| Package Type | - | 28-lead PLCC | - | - |
Key Features
- 24-bit sigma-delta ADC with programmable gain amplifier (PGA)
- Continuous-time analog modulator input architecture, eliminating the need for an external antialias filter
- High dynamic range: 116 dB min, 120 dB typical @ 1 ms
- Low input noise: 80 nV rms @ 4 ms with gain of 34
- Low distortion and intermodulation: –111 dB max, –120 dB typical
- Programmable gain front end: 1, 2.5, 8.5, 34, 128
- High common-mode rejection: 93 dB min, 101 dB typical @ gain of 1
- Low power dissipation: 77 mW typical, 70 μW in standby mode
- Robust inputs and high jitter tolerance
Applications
- Seismic data acquisition systems
- Chromatography
- Automatic test equipment
- Remote battery-powered data acquisition systems
Q & A
- What is the AD1555BPRL?
The AD1555BPRL is a 24-bit sigma-delta analog-to-digital converter (ADC) with a programmable gain amplifier (PGA) produced by Analog Devices Inc.
- What are the key features of the AD1555BPRL?
Key features include a 24-bit sigma-delta ADC, programmable gain front end, high dynamic range, low input noise, low distortion, and low power dissipation.
- What are the PGA gain settings for the AD1555BPRL?
The PGA gain settings are 1, 2.5, 8.5, 34, and 128.
- What is the sampling rate of the AD1555BPRL?
The sampling rate is up to 256 kSPS.
- What is the dynamic range of the AD1555BPRL?
The dynamic range is 116 dB min, 120 dB typical @ 1 ms.
- What are the typical applications of the AD1555BPRL?
Typical applications include seismic data acquisition systems, chromatography, automatic test equipment, and remote battery-powered data acquisition systems.
- What is the operating temperature range of the AD1555BPRL?
The operating temperature range is from –55°C to +85°C.
- What is the package type of the AD1555BPRL?
The package type is a 28-lead PLCC.
- Does the AD1555BPRL require an external antialias filter?
No, it does not require an external antialias filter due to its continuous-time analog modulator input architecture.
- What is the power dissipation of the AD1555BPRL?
The typical power dissipation is 77 mW, with a standby mode of 70 μW.
