Overview
The ADS8422IBPFBT is a 16-bit, 4-MHz analog-to-digital converter (ADC) produced by Texas Instruments. This device features a capacitor-based multi-bit successive approximation register (SAR) architecture, which includes an inherent sample and hold function. It operates with an internal 4.096-V reference and is available in a 48-lead TQFP package. The ADS8422 is characterized over the industrial temperature range of -40°C to +85°C, making it suitable for a variety of high-speed, high-resolution applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 Bits | |
| Sampling Rate | 4 MHz | |
| Input Range | -4 V to +4 V (pseudo-bipolar, fully differential) | |
| Integral Linearity (INL) | ±1 LSB Typ | |
| Signal-to-Noise Ratio (SNR) | 92 dB Typ | |
| Total Harmonic Distortion (THD) | -102 dB Typ | |
| Internal Reference Voltage | 4.096 V | |
| Power Consumption | 155 mW at 4 MHz Typ | |
| Operating Temperature Range | -40°C to +85°C | |
| Package Type | 48-Pin TQFP |
Key Features
- Fully differential input with pseudo-bipolar input range of -4 V to +4 V
- 16-bit resolution at 4 MSPS with zero latency
- Internal 4.096-V reference and reference buffer
- REFIN/2 available for setting analog input common-mode voltage
- High-speed parallel interface
- Single supply operation capability
- Low power consumption: 155 mW at 4 MHz Typ, with flexible power-down scheme
- Pin-out similar to ADS8412/8402
Applications
- DWDM (Dense Wavelength Division Multiplexing)
- Instrumentation
- High-speed, high-resolution, zero latency data acquisition systems
- Transducer interface
- Medical instruments
- Spectrum analysis
- ATE (Automated Test Equipment)
Q & A
- What is the resolution and sampling rate of the ADS8422IBPFBT?
The ADS8422IBPFBT has a 16-bit resolution and a sampling rate of 4 MHz.
- What is the input range of the ADS8422IBPFBT?
The input range is -4 V to +4 V, which is pseudo-bipolar and fully differential.
- Does the ADS8422IBPFBT have an internal reference voltage?
Yes, it has an internal 4.096-V reference voltage.
- What is the power consumption of the ADS8422IBPFBT at 4 MHz?
The power consumption is typically 155 mW at 4 MHz.
- What is the operating temperature range of the ADS8422IBPFBT?
The operating temperature range is -40°C to +85°C.
- What type of package does the ADS8422IBPFBT come in?
The ADS8422IBPFBT comes in a 48-Pin TQFP package.
- Does the ADS8422IBPFBT support single supply operation?
Yes, it supports single supply operation.
- What are some of the key applications of the ADS8422IBPFBT?
Key applications include DWDM, instrumentation, high-speed data acquisition systems, transducer interfaces, medical instruments, spectrum analysis, and ATE.
- Does the ADS8422IBPFBT have a high-speed parallel interface?
Yes, it has a high-speed parallel interface.
- Is the ADS8422IBPFBT designed for low power consumption?
Yes, it is designed for low power consumption with a flexible power-down scheme.
