Overview
The LTC2328HMS-18#PBF is a high-performance 18-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is designed for high-speed and low-noise applications, operating from a single 5V supply. It features pseudo-differential inputs with a true bipolar input range of ±10.24V, making it ideal for applications requiring a wide dynamic range.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18 bits |
| Sample Rate | 1 Msps |
| Input Range | ±10.24V true bipolar |
| Input Type | Pseudo-differential |
| Supply Voltage | Single 5V |
| Integral Nonlinearity (INL) | ±5LSB max |
| Signal-to-Noise Ratio (SNR) | 95dB typ at f = 2kHz |
| Total Harmonic Distortion (THD) | 111dB typ at f = 2kHz |
| Internal Reference | 2.048V, 20ppm/°C max |
| Serial Interface | SPI-compatible, 1.8V to 5V I/O |
| Package | 16-Lead MSOP |
| Operating Temperature Range | -40°C to 125°C |
| Power Dissipation | 50mW typ, 300μW in sleep mode |
Key Features
- Low noise and high speed operation with 1 Msps throughput rate and no cycle latency.
- Pseudo-differential inputs with ±10.24V true bipolar input range.
- Onboard single-shot capable reference buffer with low drift (20ppm/°C max) 2.048V internal reference.
- SPI-compatible serial interface supporting 1.8V, 2.5V, 3.3V, and 5V logic with daisy-chain mode.
- Internal conversion clock and no pipeline delay.
- Low power dissipation with automatic nap between conversions and a sleep mode for further power savings.
Applications
- High speed data acquisition.
- Industrial process control.
- Portable or compact instrumentation.
- Programmable logic controllers.
- Automated test equipment (ATE).
Q & A
- What is the resolution of the LTC2328HMS-18#PBF ADC?
The LTC2328HMS-18#PBF has a resolution of 18 bits. - What is the sample rate of the LTC2328HMS-18#PBF?
The sample rate is 1 Msps. - What is the input range of the LTC2328HMS-18#PBF?
The input range is ±10.24V true bipolar. - What type of inputs does the LTC2328HMS-18#PBF have?
The inputs are pseudo-differential. - What is the supply voltage for the LTC2328HMS-18#PBF?
The supply voltage is a single 5V. - What is the integral nonlinearity (INL) of the LTC2328HMS-18#PBF?
The INL is ±5LSB max. - What is the signal-to-noise ratio (SNR) of the LTC2328HMS-18#PBF?
The SNR is 95dB typ at f = 2kHz. - Does the LTC2328HMS-18#PBF have an internal reference?
Yes, it has a 2.048V internal reference with 20ppm/°C max drift. - What type of serial interface does the LTC2328HMS-18#PBF support?
The LTC2328HMS-18#PBF supports an SPI-compatible serial interface with 1.8V to 5V I/O. - What is the power dissipation of the LTC2328HMS-18#PBF?
The power dissipation is 50mW typ, and it reduces to 300μW in sleep mode.
