Overview
The AD7946BCPZRL7 is a 14-bit, successive approximation, analog-to-digital converter (ADC) produced by Analog Devices Inc. This component operates from a single 5 V power supply and is part of the PulSAR® series. It features a high-speed, low-power design with a sampling rate of 500 kSPS, making it suitable for a variety of applications requiring precise and efficient analog-to-digital conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | AD7946BCPZRL7 |
| Manufacturer | Analog Devices Inc. |
| Category | Integrated Circuits (ICs) > Data Acquisition - Analog to Digital Converters (ADC) |
| Description | IC ADC 14BIT SAR 10-LFCSP |
| Voltage - Supply, Digital | 5V |
| Voltage - Supply, Analog | 5V |
| Supplier Device Package | 10-LFCSP-WD (3x3) |
| Series | PulSAR® |
| Sampling Rate (Per Second) | 500 kSPS |
| Reference Type | External |
| Ratio - S/H:ADC | 1:1 |
| Package / Case | 10-WFDFN Exposed Pad, CSP |
| Operating Temperature | -40°C ~ 85°C |
| Number of Inputs | 1 |
| Number of Bits | 14 |
| Number of A/D Converters | 1 |
| Input Type | Pseudo-Differential |
| Data Interface | SPI, DSP |
| Configuration | S/H-ADC |
| Architecture | SAR |
Key Features
- 14-bit resolution with no missing codes, ensuring high accuracy.
- Throughput of 500 kSPS, suitable for high-speed applications.
- Integral nonlinearity (INL): ±0.4 LSB typical, ±1 LSB maximum.
- Signal-to-noise and distortion ratio (SINAD): 85 dB at 20 kHz.
- Total harmonic distortion (THD): −100 dB at 20 kHz.
- Pseudo-differential analog input range from 0 V to REF with REF up to VDD.
- No pipeline delay, ideal for multiple multiplexed channel applications.
- Single-supply 5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface.
- Proprietary serial interface compatible with SPI, QSPI, MICROWIRE, and DSP.
- Daisy-chain capability and BUSY indicator.
- Low power consumption: 3.3 mW at 5 V/100 kSPS and 3.3 µW at 5 V/100 SPS.
- Standby current: 1 nA.
- Compact packaging: 10-lead MSOP and 3 mm × 3 mm LFCSP.
Applications
- Battery-powered equipment.
- Data acquisition systems.
- Instrumentation.
- Medical instruments.
- Process control systems.
- Communications.
- Industrial automation.
- Aerospace and defense.
- Motor and power control.
- Healthcare.
Q & A
- What is the resolution of the AD7946BCPZRL7 ADC?
The AD7946BCPZRL7 has a 14-bit resolution.
- What is the sampling rate of the AD7946BCPZRL7?
The sampling rate is 500 kSPS.
- What type of analog input does the AD7946BCPZRL7 support?
The AD7946BCPZRL7 supports pseudo-differential analog inputs.
- What is the operating temperature range of the AD7946BCPZRL7?
The operating temperature range is -40°C to 85°C.
- What are the power supply requirements for the AD7946BCPZRL7?
The AD7946BCPZRL7 operates on a single 5 V power supply.
- What types of digital interfaces does the AD7946BCPZRL7 support?
The AD7946BCPZRL7 supports SPI, QSPI, MICROWIRE, and DSP interfaces.
- How does the AD7946BCPZRL7 manage power consumption?
The AD7946BCPZRL7 has low power consumption, with 3.3 mW at 5 V/100 kSPS and 3.3 µW at 5 V/100 SPS, and a standby current of 1 nA.
- What are the typical applications of the AD7946BCPZRL7?
Typical applications include battery-powered equipment, data acquisition, instrumentation, medical instruments, and process control systems.
- What is the package type of the AD7946BCPZRL7?
The AD7946BCPZRL7 is available in 10-lead MSOP and 3 mm × 3 mm LFCSP packages.
- Is the AD7946BCPZRL7 RoHS compliant?
Yes, the AD7946BCPZRL7 is RoHS compliant.
- Can multiple AD7946BCPZRL7 ADCs be daisy-chained?
Yes, multiple AD7946BCPZRL7 ADCs can be daisy-chained.
