Overview
The LTC2389IUK-16, produced by Analog Devices Inc., is a high-performance, low noise, 16-bit successive approximation register (SAR) analog-to-digital converter (ADC). This device operates from a single 5V supply and supports pin-configurable fully differential (±4.096V), pseudo-differential unipolar (0V to 4.096V), and pseudo-differential bipolar (±2.048V) analog input ranges. This versatility allows it to interface with multiple signal chain formats without the need for additional level translation or signal conditioning. The LTC2389IUK-16 is known for its high accuracy, with ±1LSB INL (maximum) and no missing codes at 16 bits, along with an impressive signal-to-noise ratio (SNR) of 96.0dB (fully differential) and 93.5dB (pseudo-differential).
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 16 | |
| Sampling Rate | 2.5 Msps | |
| Input Type | Differential/Pseudo-Differential/Single-Ended | |
| Data Interface | SPI, Parallel | |
| Architecture | SAR | |
| Reference Type | Internal | |
| Supply Voltage (Analog/Digital) | 5V | |
| Operating Temperature | -40°C to 85°C | |
| Package/Case | 48-QFN (7x7mm x 0.75mm w/ EP) | |
| Power Dissipation | 162.5 mW at 2.5 Msps | |
| Integral Nonlinearity (INL) | ±1 LSB (max) | |
| Signal to Noise Ratio (SNR) | 96.0 dB (fully differential), 93.5 dB (pseudo-differential) | |
| Total Harmonic Distortion (THD) | -116 dB |
Key Features
- Pin-Configurable Analog Input Range: Supports fully differential (±4.096V), pseudo-differential unipolar (0V to 4.096V), and pseudo-differential bipolar (±2.048V) input ranges.
- High Accuracy: ±1LSB INL (maximum) and no missing codes at 16 bits.
- Low Noise and High SNR: Achieves 96.0dB (fully differential) and 93.5dB (pseudo-differential) SNR.
- Fast Throughput: 2.5 Msps with no cycle latency in parallel interface modes.
- Internal Reference and Buffer: Precision internal 4.096V reference with a guaranteed 0.5% initial accuracy and ±20ppm/°C temperature coefficient.
- Low Power Consumption: 162.5 mW at 2.5 Msps, with nap and sleep power-down modes.
- Compact Package: Available in 48-lead QFN (7mm x 7mm x 0.75mm w/ EP) and LQFP packages.
Applications
- Communication Systems: Ideal for high-speed data conversion in communication systems.
- Automated Testing: Suitable for automated testing equipment due to its high accuracy and speed.
- Power Management: Used in power management systems requiring precise and fast analog-to-digital conversion.
- Industrial Control Systems: Applicable in industrial control systems where high precision and reliability are crucial.
- Medical Devices: Can be used in medical devices that require high accuracy and low noise in analog-to-digital conversion.
Q & A
- What is the resolution of the LTC2389IUK-16 ADC?
The LTC2389IUK-16 is a 16-bit ADC.
- What are the supported analog input ranges for the LTC2389IUK-16?
The device supports fully differential (±4.096V), pseudo-differential unipolar (0V to 4.096V), and pseudo-differential bipolar (±2.048V) input ranges.
- What is the sampling rate of the LTC2389IUK-16?
The sampling rate is 2.5 Msps.
- What is the signal-to-noise ratio (SNR) of the LTC2389IUK-16?
The SNR is 96.0 dB (fully differential) and 93.5 dB (pseudo-differential).
- Does the LTC2389IUK-16 have an internal reference?
Yes, it includes a precision internal 4.096V reference with a guaranteed 0.5% initial accuracy and ±20ppm/°C temperature coefficient.
- What are the power-down modes available for the LTC2389IUK-16?
The device has nap and sleep power-down modes to reduce power consumption during inactive periods.
- What is the operating temperature range of the LTC2389IUK-16?
The operating temperature range is -40°C to 85°C.
- What package options are available for the LTC2389IUK-16?
The device is available in 48-lead QFN (7mm x 7mm x 0.75mm w/ EP) and LQFP packages.
- What is the power dissipation of the LTC2389IUK-16 at 2.5 Msps?
The power dissipation is 162.5 mW at 2.5 Msps.
- Does the LTC2389IUK-16 have any cycle latency in parallel interface modes?
No, it has no cycle latency in parallel interface modes.
