Overview
The AD7440BRTZ-REEL7 is a high-speed, low-power analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7440 series, which includes 10-bit and 12-bit successive approximation (SAR) ADCs. The AD7440BRTZ-REEL7 operates from a single 3 V or 5 V power supply and is designed for applications requiring high throughput rates with minimal power consumption. It features a fully differential analog input, a wide input bandwidth, and a high-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSPs.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 10-bit | ||
| Conversion Rate | Up to 1 MSPS | ||
| Power Supply | 3 V or 5 V | ||
| Power Consumption (Normal Mode) | 1.45 mA (3 V), 1.95 mA (5 V) | mA | VDD = 2.7 V to 3.6 V or 4.75 V to 5.25 V |
| Power-Down Mode | 1 μA max | μA | |
| Input Type | Fully differential analog input | ||
| Reference Voltage Range | 100 mV to 3.5 V | mV/V | Dependent on power supply and application |
| Package Type | 8-Lead SOT-23 | ||
| Operating Temperature Range | -40°C to +85°C | °C |
Key Features
- Fully differential analog input with wide input bandwidth.
- High-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSPs.
- No pipeline delays due to SAR architecture.
- Low noise, wide bandwidth differential track-and-hold amplifier (T/H).
- Flexible power and serial clock speed management.
- Power-down mode with maximum current of 1 μA.
- Variable reference input from 100 mV to 3.5 V.
Applications
- Transducer interface.
- Battery-powered systems.
- Data acquisition systems.
- Portable instrumentation.
- Motor control systems.
Q & A
- What is the resolution of the AD7440BRTZ-REEL7 ADC?
The AD7440BRTZ-REEL7 has a 10-bit resolution.
- What are the possible power supply voltages for this ADC?
The AD7440BRTZ-REEL7 can operate from either a 3 V or 5 V power supply.
- What is the maximum conversion rate of the AD7440BRTZ-REEL7?
The maximum conversion rate is up to 1 MSPS.
- What type of input does the AD7440BRTZ-REEL7 have?
The AD7440BRTZ-REEL7 has a fully differential analog input.
- What is the range of the reference voltage for this ADC?
The reference voltage can be varied from 100 mV to 3.5 V.
- What is the package type of the AD7440BRTZ-REEL7?
The package type is an 8-Lead SOT-23.
- What is the operating temperature range of this ADC?
The operating temperature range is -40°C to +85°C.
- Does the AD7440BRTZ-REEL7 have any pipeline delays?
No, the SAR architecture ensures there are no pipeline delays.
- What is the power consumption in normal mode for the AD7440BRTZ-REEL7?
The power consumption is typically 1.45 mA at 3 V and 1.95 mA at 5 V.
- What is the current in power-down mode for this ADC?
The current in power-down mode is a maximum of 1 μA.
