Overview
The ADS8505IBDW is a 16-bit analog-to-digital converter (ADC) produced by Texas Instruments. It is a complete 16-bit sampling A/D converter utilizing state-of-the-art CMOS structures. The device includes a 16-bit, capacitor-based, successive approximation register (SAR) A/D with a sample-and-hold (S/H) circuit, reference, clock, and interface for microprocessor use, along with 3-state output drivers. It operates from a single +5-V supply and is specified at a 250-kHz sampling rate over the full temperature range of -40°C to 85°C.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Manufacturer | Texas Instruments | Series | ADS8505 |
| Resolution | 16 bits | Sampling Rate | 250 kSPS |
| Architecture | SAR | Input Type | Single-Ended |
| Input Range | ±10 V | Interface Type | Parallel |
| Analog Supply Voltage | 4.75 V to 5.25 V | Digital Supply Voltage | 4.75 V to 5.25 V |
| Operating Temperature Range | -40°C to 85°C | Power Dissipation | 70 mW (typ) at 250 kSPS |
| INL (Integral Nonlinearity) | ±1.5 LSB | DNL (Differential Nonlinearity) | ±1 LSB |
| SINAD (Signal to Noise and Distortion Ratio) | 88 dB | SNR (Signal to Noise Ratio) | 88 dB |
| Package Type | SOIC-28 | Package Size | 7.5 mm x 17.9 mm x 2.35 mm |
Key Features
- 105 dB SFDR at 250-kHz sample rate
- Standard ±10-V input range
- ±1.5 LSB max INL and ±1 LSB max DNL, with no missing codes
- ±2 mV max bipolar zero error with ±0.4 PPM/°C drift
- ±0.1% FSR max full-scale error with ±2 PPM/°C drift
- Single 5-V supply operation
- Pin-compatible with ADS7805 (low speed) and 12-bit ADS8504/7804
- Uses internal or external reference
- Full parallel data output
- Low power dissipation of 70 mW (typ) at 250 kSPS
- Available in 28-pin SOIC and 28-pin SSOP packages
Applications
- Industrial Process Control
- Data Acquisition Systems
- Digital Signal Processing
- Medical Equipment
- Instrumentation
Q & A
- What is the resolution of the ADS8505IBDW?
The ADS8505IBDW has a resolution of 16 bits.
- What is the sampling rate of the ADS8505IBDW?
The sampling rate of the ADS8505IBDW is up to 250 kSPS.
- What is the input range of the ADS8505IBDW?
The input range of the ADS8505IBDW is ±10 V.
- What type of interface does the ADS8505IBDW use?
The ADS8505IBDW uses a parallel interface.
- What is the operating temperature range of the ADS8505IBDW?
The operating temperature range of the ADS8505IBDW is -40°C to 85°C.
- What is the power dissipation of the ADS8505IBDW at 250 kSPS?
The power dissipation of the ADS8505IBDW at 250 kSPS is typically 70 mW.
- Does the ADS8505IBDW support internal or external references?
Yes, the ADS8505IBDW supports both internal and external references.
- What are the package options for the ADS8505IBDW?
The ADS8505IBDW is available in 28-pin SOIC and 28-pin SSOP packages.
- What are some common applications of the ADS8505IBDW?
The ADS8505IBDW is commonly used in industrial process control, data acquisition systems, digital signal processing, medical equipment, and instrumentation.
- What is the SFDR of the ADS8505IBDW at 250-kHz sample rate?
The SFDR of the ADS8505IBDW at 250-kHz sample rate is 105 dB.
