Overview
The AD5337BRMZ is a dual 8-bit buffered voltage output Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This component is part of the AD5337/AD5338/AD5339 family, each offering different resolution levels. The AD5337BRMZ operates from a single 2.5 V to 5.5 V supply, consuming a low current of 250 μA at 3 V, making it suitable for portable battery-operated equipment. It features a 2-wire serial interface compatible with I2C and SMBus protocols, allowing for easy communication and control.
Key Specifications
| Parameter | Value | Unit | Conditions/Comments |
|---|---|---|---|
| Resolution | 8 bits | - | - |
| Relative Accuracy | ±0.5 LSB | - | - |
| Differential Nonlinearity | ±0.25 LSB | - | - |
| Offset Error | ±0.4% of FSR | - | - |
| Gain Error | ±0.15% of FSR | - | - |
| Supply Voltage | 2.5 V to 5.5 V | V | - |
| Current Consumption | 250 μA @ 3 V, 300 μA @ 5 V | μA | - |
| Power-Down Current | 80 nA @ 3 V, 200 nA @ 5 V | nA | - |
| Output Voltage Settling Time | 6 μs to 8 μs | μs | 1/4 scale to 3/4 scale change |
| Slew Rate | 0.7 V/μs | V/μs | - |
| Temperature Range | −40°C to +105°C | °C | - |
| Interface | 2-wire (I2C-compatible) serial interface | - | - |
Key Features
- Low power operation: 250 μA at 3 V and 300 μA at 5 V.
- 2-wire serial interface compatible with I2C and SMBus protocols.
- Dual 8-bit buffered voltage output DACs.
- On-chip rail-to-rail output buffer amplifiers.
- Power-on reset to 0 V and software clear facility.
- Simultaneous update of outputs using the LDAC function.
- Power-down feature reducing current to 80 nA @ 3 V and 200 nA @ 5 V.
- Guaranteed monotonic by design over all codes.
- Data readback facility.
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 resolution of the AD5337BRMZ DAC?
The AD5337BRMZ has a resolution of 8 bits.
- What is the operating voltage range of the AD5337BRMZ?
The AD5337BRMZ operates from a single 2.5 V to 5.5 V supply.
- What is the current consumption of the AD5337BRMZ at 3 V and 5 V?
The current consumption is 250 μA at 3 V and 300 μA at 5 V.
- What is the power-down current of the AD5337BRMZ?
The power-down current is 80 nA at 3 V and 200 nA at 5 V.
- What type of interface does the AD5337BRMZ use?
The AD5337BRMZ uses a 2-wire serial interface compatible with I2C and SMBus protocols.
- What is the slew rate of the AD5337BRMZ output amplifiers?
The slew rate is 0.7 V/μs.
- Does the AD5337BRMZ have a power-on reset feature?
Yes, the AD5337BRMZ has a power-on reset feature that sets the DAC outputs to 0 V.
- Can the outputs of the AD5337BRMZ be updated simultaneously?
Yes, the outputs can be updated simultaneously using the LDAC function.
- What is the temperature range of the AD5337BRMZ?
The temperature range is −40°C to +105°C.
- What are some common applications of the AD5337BRMZ?
Common applications include portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, programmable attenuators, and industrial process control.
