Overview
The ADS8515IBDB, produced by Texas Instruments, is a 16-bit sampling analog-to-digital (A/D) converter that utilizes state-of-the-art CMOS structures. This device is designed for high precision and reliability, featuring a capacitor-based successive approximation register (SAR) A/D converter with sample and hold (S/H) functionality. It operates at a 250-kHz sampling rate and is fully specified over the industrial temperature range of –40°C to 85°C. The ADS8515IBDB is powered by a single +5-V supply, with a power dissipation of typically 100 mW, and is available in a 28-pin SSOP package.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Resolution | Bits | 16 | 16 | 16 |
| Analog Input Voltage Range | V | ±10 | ±10 | ±10 |
| Analog Input Impedance | kΩ | 8.885 | 8.885 | 8.885 |
| Analog Input Capacitance | pF | 75 | 75 | 75 |
| Throughput Rate | kHz | 250 | 250 | 250 |
| Integral Linearity Error (INL) | LSB | -3 | 0 | 3 |
| Differential Linearity Error (DNL) | LSB | -1 | 0 | 1 |
| Signal-to-Noise Ratio (SNR) | dB | 90 | ||
| Analog Supply Voltage | V | 5 | 5 | 5 |
| Digital Supply Voltage | V | 1.65 | 5.25 | |
| Power Dissipation | mW | 100 | ||
| Package | 28-pin SSOP |
Key Features
- Standard ±10-V input range with precision resistors providing industry-standard input levels.
- 90-dB minimum signal-to-noise ratio (SNR) with a 20-kHz input.
- ±2.0 LSB maximum integral nonlinearity (INL) and ±1 LSB maximum differential nonlinearity (DNL).
- No missing codes in the 16-bit conversion range.
- Flexible I/O supply voltage from 1.65 V to 5.25 V.
- Internal or external reference options.
- Full parallel data output in binary twos complement format.
- Low power dissipation of typically 100 mW at 250 kSPS.
- Pin-compatible with ADS7805/10 and 12-bit ADS7804/8504.
Applications
- Industrial Process Control
- Data Acquisition Systems
- Digital Signal Processing
- Medical Equipment
- Instrumentation
Q & A
- What is the resolution of the ADS8515IBDB?
The ADS8515IBDB has a resolution of 16 bits.
- What is the input voltage range of the ADS8515IBDB?
The input voltage range is ±10 V.
- What is the maximum signal-to-noise ratio (SNR) of the ADS8515IBDB?
The SNR is a minimum of 90 dB with a 20-kHz input.
- What is the typical power dissipation of the ADS8515IBDB at 250 kSPS?
The typical power dissipation is 100 mW.
- What is the operating temperature range of the ADS8515IBDB?
The operating temperature range is –40°C to 85°C.
- Can the ADS8515IBDB use an external reference?
Yes, the ADS8515IBDB can use either an internal or an external reference.
- What is the data output format of the ADS8515IBDB?
The data output is in full parallel format in binary twos complement.
- How is the conversion initiated on the ADS8515IBDB?
A conversion is initiated by holding the CS and R/C pins low for a minimum of 40 ns.
- What is the throughput rate of the ADS8515IBDB?
The throughput rate is 250 kHz.
- In what package is the ADS8515IBDB available?
The ADS8515IBDB is available in a 28-pin SSOP package.
