Overview
The AD7545JNZ is a monolithic 12-bit CMOS multiplying Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This device is characterized by its onboard data latches and is designed to interface directly with most 12- and 16-bit bus systems. It operates on a single 12-bit wide word and is suitable for single supply operation, making it ideal for applications with wide temperature variations. The AD7545JNZ can be powered with any supply voltage from +5 V to +15 V and features low power consumption, dissipating less than 0.5 mW at VDD = +5 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Converters | 1 | |
| Number of D/A Converters | 1 | |
| Number of DAC Channels | 1 | |
| Resolution | 12-bit | |
| Output Type | Voltage | |
| Supply Voltage Range | +5 V to +15 V | V |
| Power Consumption (VDD = +5 V) | < 0.5 mW | mW |
| Input High Voltage (VIH) | 2.4 V min | V |
| Input Low Voltage (VIL) | 0.8 V max | V |
| Input Current (IIN) | ±1 µA max | µA |
| Input Capacitance | 5 pF max | pF |
| Output Capacitance (COUT) | 70 pF max (DB0–DB11 = 0 V) | pF |
| Operating Temperature Range | 0°C to +70°C | °C |
| Packaging | 20-Lead PDIP |
Key Features
- Onboard data latches for easy data loading and control via CS and WR inputs.
- Direct interface to most 12- and 16-bit bus systems.
- Single supply operation with a wide supply voltage range (+5 V to +15 V).
- Low power consumption, ideal for battery-operated equipment.
- Fast TTL compatible data latches.
- No need for Schottky protection diodes due to latch-free operation.
- Suitable for applications with wide temperature variations.
- Proprietary ESD protection circuitry to prevent damage from electrostatic discharges.
Applications
The AD7545JNZ is versatile and can be used in various applications, including:
- Battery-operated equipment due to its low power consumption.
- Industrial control systems that require precise analog output.
- Aerospace and military applications where wide temperature ranges are common.
- Medical devices that need reliable and accurate analog signals.
- Automotive systems requiring robust and temperature-stable DACs.
Q & A
- What is the resolution of the AD7545JNZ DAC?
The AD7545JNZ has a resolution of 12 bits. - What is the supply voltage range for the AD7545JNZ?
The AD7545JNZ can operate with supply voltages ranging from +5 V to +15 V. - How much power does the AD7545JNZ consume at VDD = +5 V?
The device dissipates less than 0.5 mW at VDD = +5 V. - What type of packaging is available for the AD7545JNZ?
The AD7545JNZ is available in a 20-Lead PDIP package. - Is the AD7545JNZ suitable for high-temperature applications?
Yes, the AD7545JNZ is suitable for applications with wide temperature variations and can operate from 0°C to +70°C. - How does the AD7545JNZ interface with microprocessors?
The AD7545JNZ can directly interface with both 8- and 16-bit microprocessors using standard CS and WR control signals. - Does the AD7545JNZ require Schottky protection diodes?
No, the AD7545JNZ does not require Schottky protection diodes due to its latch-free operation. - What is the input capacitance of the AD7545JNZ?
The input capacitance of the AD7545JNZ is 5 pF max. - What is the output capacitance of the AD7545JNZ?
The output capacitance (COUT) of the AD7545JNZ is 70 pF max when DB0–DB11 = 0 V. - Does the AD7545JNZ have built-in ESD protection?
Yes, the AD7545JNZ features proprietary ESD protection circuitry.
