MAX5318：18-Bit, High-Accuracy Voltage Output DAC with Digital Gain, Offset Control, and SPI Interface

Lowest Noise, Fast-Settling Precision 18-Bit DAC

The MAX5318 is a high-accuracy, 18-bit, serial SPI input, buffered voltage output digital-to-analog converter (DAC) in a 4.4mm x 7.8mm, 24-lead TSSOP package. The device features ±2 LSB INL (max) accuracy and a ±1 LSB DNL (max) accuracy over the full temperature range of -40°C to +105°C. The DAC voltage output is buffered resulting in a fast settling time of 3µs and a low offset and gain drift of ±0.5ppm/°C of FSR (typ). The force-sense output (OUT) maintains accuracy while driving loads with long lead lengths. Additionally, a separate AVSS supply, allows the output amplifier to go to 0V (GND) while maintaining full linearity performance. The MAX5318 includes user-programmable digital gain and offset correction to enable easy system calibration. At power-up, the device resets its outputs to zero or midscale. The wide 2.7V to 5.5V supply voltage range and integrated low-drift, low-noise reference buffer amplifier make for ease of use. The MAX5318 features a 50MHz, 3-wire, SPI interface. The MAX5318 is available in a 24-lead TSSOP package and operates over the -40°C to +105°C temperature range.

Key Features

Ideal for ATE and High-Precision Instruments
- INL Accuracy Guaranteed with ±2 LSB (max) Over Temperature
Fast Settling Time (3µs) with 10kΩ || 100pF Load
Safe Power-Up-Reset to Zero or Midscale DAC Output (Pin-Selectable)
- Predetermined Output Device State in Power-Up and Reset in System Design
Negative Supply (AVSS) Option Allows Full INL and DNL Performance to 0V
SPI Interface Compatible with 1.8V to 5.5V Logic
High Integration Reduces Development Time and PCB Area
- Buffered Voltage Output Directly Drives 2kΩ Load Rail-to-Rail
- Integrated Reference Buffer
- No External Amplifiers Required
Small 4.4mm × 7.8mm, 24-Pin TSSOP Package

Applications/Uses

Automatic Test Equipment
Automatic Tuning and Calibration
Communication Systems
Data-Acquisition Systems
Gain and Offset Adjustment
Medical Imaging
Process Control and Servo Loops
Programmable Voltage and Current Sources
Test and Measurement Equipment

DataSheet

title	Download file
MAX5318 Data Sheet	MAX5318.pdf

Parametrics

Part Number	Resolution (bits)	Channels	Output Type	Reference	INL (±LSB)	Interface	Supply Range (V)	Supply Range (V)	I_CC (mA)	Settling Time (µs)	Package/Pins	Oper. Temp. (°C)	Budgetary Price
Part Number	Resolution (bits)	Channels	Output Type	Reference	max	Interface	min	max	max	typ	Package/Pins	Oper. Temp. (°C)	See Notes
MAX5318	18	1	Voltage- Buffered	Ext.	2	Serial - SPI	2.7	5.5	10	3	TSSOP/24	-40 to +105	$19.57 @1k

Design kits & evaluation modules

MAX5318EVSYS

Ordering Information

Part Number	Status	Package	Temp	RoHS
MAX5318EVKIT#	No Longer Available	EVKIT;	-40°C to +105°C	See data sheet
MAX5318GUG+	Active	TSSOP,;24 pin;52.4 mm²	-40°C to +105°C	Lead Free
MAX5318GUG+T	Active	TSSOP,;24 pin;52.4 mm²	-40°C to +105°C	Lead Free

MAX5318.pdf MAX5318