Overview
The AD5337BRMZ-REEL7, produced by Analog Devices Inc., is a dual 8-bit buffered voltage output Digital-to-Analog Converter (DAC). This component is part of the AD5337/AD5338/AD5339 family, each differing in their bit resolution. The AD5337 operates from a single 2.5 V to 5.5 V supply and is housed in an 8-lead MSOP package. It is designed for low power consumption, making it ideal for portable battery-operated equipment.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| Supply Voltage | 2.5 | 5.5 | V | ||
| Current Consumption | 250 | 300 | μA | @ 3 V and @ 5 V respectively | |
| Power-Down Current | 80 | 200 | nA | @ 3 V and @ 5 V respectively | |
| Output Voltage Settling Time | 6 | 8 | μs | 1/4 scale to 3/4 scale change (0x40 to 0xC0) | |
| Slew Rate | 0.7 | V/μs | |||
| Temperature Range | -40 | 105 | °C | ||
| Serial Interface Clock Rate | 400 | kbps |
Key Features
- Dual 8-bit buffered voltage output DACs
- Low power operation: 250 μA @ 3 V, 300 μA @ 5 V
- 2-wire (I2C-compatible) serial interface with clock rates up to 400 kHz
- Rail-to-rail output amplifiers with a slew rate of 0.7 V/μs
- Power-on reset to 0 V and software clear facility
- Simultaneous update of outputs using the LDAC function
- Power-down feature reducing current consumption to 80 nA @ 3 V and 200 nA @ 5 V
Applications
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
- Programmable attenuators
- Industrial process control
Q & A
- What is the supply voltage range for the AD5337BRMZ-REEL7? The supply voltage range is from 2.5 V to 5.5 V.
- How much current does the AD5337BRMZ-REEL7 consume at 3 V and 5 V? It consumes 250 μA at 3 V and 300 μA at 5 V.
- What is the power-down current consumption at 3 V and 5 V? The power-down current is 80 nA at 3 V and 200 nA at 5 V.
- What is the output voltage settling time for the AD5337? The output voltage settling time is 6 μs to 8 μs for a 1/4 scale to 3/4 scale change.
- What is the slew rate of the output amplifiers? The slew rate is 0.7 V/μs.
- What is the temperature range for the AD5337BRMZ-REEL7? The temperature range is from -40°C to +105°C.
- What is the maximum clock rate for the serial interface? The maximum clock rate is 400 kbps.
- Does the AD5337BRMZ-REEL7 have a power-on reset feature? Yes, it has a power-on reset feature that sets the DAC outputs to 0 V.
- Can the outputs be updated simultaneously? Yes, the outputs can be updated simultaneously using the LDAC function.
- What is the purpose of the software clear facility? The software clear facility resets all input and DAC registers to 0 V.
