Overview
The AD5340BRUZ-REEL is a 12-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This device is part of the AD5330/AD5331/AD5340/AD5341 family, which includes single 8-, 10-, and 12-bit DACs. The AD5340 operates from a supply voltage range of 2.5 V to 5.5 V and consumes a low current of 115 μA at 3 V. It features a parallel interface and includes an on-chip output buffer that can drive the output to both supply rails. The device also offers a choice of buffered or unbuffered reference input and a power-down mode that reduces the current to 80 nA.
Key Specifications
| Parameter | Value | Comments |
|---|---|---|
| Number of Bits | 12 | |
| Settling Time | 10 μs | ¼ scale to ¾ scale change |
| Output Type | Voltage - Buffered | |
| Differential Output | No | |
| Data Interface | Parallel | |
| Reference Type | External | Buffered or unbuffered |
| Voltage - Supply, Analog/Digital | 2.5 V ~ 5.5 V | |
| INL/DNL (LSB) | ±2, ±0.2 | |
| Architecture | String DAC | |
| Operating Temperature | -40°C ~ 105°C | |
| Mounting Type | Surface Mount | 24-TSSOP package |
Key Features
- Low Power Consumption: The AD5340 consumes only 115 μA at 3 V and reduces to 80 nA in power-down mode.
- Parallel Interface: The device features a parallel interface with CS and WR inputs for data loading.
- Buffered Output: The on-chip output buffer drives the output to both supply rails, ensuring rail-to-rail operation.
- Buffered or Unbuffered Reference Input: The device allows a choice between buffered or unbuffered reference input.
- Gain Control: The GAIN pin sets the output range to either 0 V to VREF or 0 V to 2 × VREF.
- Double-Buffered Input Data: Allows simultaneous update of multiple DACs using the LDAC pin.
- Asynchronous CLR Input: Resets the input and DAC registers to zero.
- Power-On Reset Circuit: Ensures the DAC output powers on to 0 V and remains there until valid data is written.
Applications
The AD5340 is suitable for various applications requiring high-resolution DAC capabilities, including:
- Industrial Applications: The device's wide operating temperature range (-40°C to 105°C) makes it ideal for industrial environments.
- Automotive Applications: Its robust design and temperature range make it suitable for automotive use.
- Aerospace Applications: The device's reliability and performance under extreme temperatures are beneficial in aerospace applications.
- General Purpose DAC Applications: Where precise and fast analog conversion from digital signals is required.
Q & A
- What is the resolution of the AD5340?
The AD5340 is a 12-bit digital-to-analog converter.
- What is the operating voltage range of the AD5340?
The device operates from a supply voltage range of 2.5 V to 5.5 V.
- What is the current consumption of the AD5340 at 3 V?
The AD5340 consumes 115 μA at 3 V.
- Does the AD5340 have a buffered or unbuffered reference input option?
Yes, the AD5340 allows a choice between buffered or unbuffered reference input.
- What is the settling time of the AD5340?
The settling time is 10 μs for a ¼ scale to ¾ scale change.
- What type of interface does the AD5340 use?
The device uses a parallel interface.
- Is the AD5340 available in surface mount packaging?
Yes, it is available in a 24-TSSOP surface mount package.
- What is the operating temperature range of the AD5340?
The device operates over a temperature range of -40°C to 105°C.
- Does the AD5340 have a power-on reset circuit?
Yes, it ensures the DAC output powers on to 0 V and remains there until valid data is written.
- Is the AD5340 still in production?
No, the AD5340BRUZ-REEL is obsolete and no longer manufactured by Analog Devices Inc..
