MCP4725A0T

Part: MCP4725

Type: 12-Bit Digital-to-Analog Converter with EEPROM Memory

Description: A low-power, high accuracy, single channel, 12-bit buffered voltage output Digital-to-Analog Converter (DAC) with on-board nonvolatile EEPROM memory, single-supply operation from 2.7V to 5.5V, and I2C interface.

Operating Conditions:

• Supply voltage: 2.7V to 5.5V
• Operating temperature: -40°C to +125°C
• I2C Interface: Standard (100 kbps), Fast (400 kbps), and High-Speed (3.4 Mbps) Modes

Absolute Maximum Ratings:

• Max supply voltage: 6.5V
• Max junction/storage temperature: +150°C

Key Specs:

• Resolution: 12 Bits (Code Range = 000h to FFFh)
• DNL: ±0.2 LSB (typical), ±0.75 LSB (max) (Test Code Range: 100 to 4000)
• INL Error: ±2 LSB (typical), ±14.5 LSB (max) (Test Code Range: 100 to 4000)
• Output Voltage Settling Time: 6 μs (typical) (Within 1/2 LSB of final value when code changes from 1/4 to 3/4 FSR)
• Supply Current (I DD): 210 μA (typical), 400 μA (max) (Digital input pins grounded, VOUT unloaded, Code = 000h)
• Power-Down Current (I DDP): 0.06 μA (typical), 2.0 μA (max) (V DD = 5.5V)
• EEPROM Write Time: 25 ms (typical), 50 ms (max)
• Data Retention: 200 Years (typical) at +25°C

Features:

• 12-Bit Resolution
• On-Board Nonvolatile Memory (EEPROM)
• External A0 Address Pin
• Normal or Power-Down Mode
• Fast Settling Time: 6 μs (typical)
• External Voltage Reference (V DD )
• Rail-to-Rail Output
• Low Power Consumption
• Single-Supply Operation: 2.7V to 5.5V
• I 2 C Interface: Eight Available Addresses, Standard (100 kbps), Fast (400 kbps), and High-Speed (3.4 Mbps) Modes
• Small 6-Lead SOT-23 and DFN Package Options
• Extended Temperature Range: -40°C to +125°C

Applications:

• Set Point or Offset Trimming
• Sensor Calibration
• Closed-Loop Servo Control
• Low Power Portable Instrumentation
• PC Peripherals
• Data Acquisition Systems

Package:

• 6-Lead SOT-23
• DFN

• 12-Bit Resolution
• On-Board Nonvolatile Memory (EEPROM)
• ±0.2 LSB DNL (typical)
• External A0 Address Pin
• Normal or Power-Down Mode
• Fast Settling Time: 6 μs (typical)
• External Voltage Reference (V DD )
• Rail-to-Rail Output
• Low Power Consumption
• Single-Supply Operation: 2.7V to 5.5V
• I 2 C Interface:
• -Eight Available Addresses
• -Standard (100 kbps), Fast (400 kbps), and High-Speed (3.4 Mbps) Modes
• Small 6-Lead SOT-23 and DFN Package Options
• Extended Temperature Range: -40°C to +125°C

• Set Point or Offset Trimming
• Sensor Calibration
• Closed-Loop Servo Control
• Low Power Portable Instrumentation
• PC Peripherals
• Data Acquisition Systems

The descriptions of the pins are listed in Table 3-1.

TABLE 3-1: PIN FUNCTION TABLE

Note 1: The DFN package has a contact on the bottom of the package. This contact is conductively connected to the die substrate, and therefore should be unconnected or connected to the same ground as the device's VSS pin.

Electrical Specifications: Unless otherwise indicated, all parameters apply at V DD = + 2.7V to 5.5V, V SS = 0V, RL = 5 k Ω from V OUT to V SS , C L = 100 pF, T A = -40°C to +125°C. Typical values are at +25°C.

Note

• 1: Test Code Range: 100 to 4000.
• 2: This parameter is ensured by design and not 100% tested.
• 3: Within 1/2 LSB of the final value when code changes from 1/4 to 3/4 (400h to C00h) of full scale range.
• 4: Logic state of external address selection pin (A0 pin).

† Notice: Stresses above those listed under 'Absolute Maximum ratings' may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability

• All inputs and outputs w.r.t V SS .................-0.3V to V DD +0.3V
• Current at Input Pins ....................................................±2 mA
• Current at Supply Pins ...............................................±50 mA
• Current at Output Pins ...............................................±25 mA
• Storage Temperature ...................................-65°C to +150°C
• Ambient Temp. with Power Applied ..............-55°C to +125°C
• ESD protection on all pins 6 kV HBM, 400V MM
• Maximum Junction Temperature (T J ) .........................+150°C

The MCP4725 device is one of Microchip's latest DAC device family with nonvolatile EEPROM memory. The device is a general purpose resistive string DAC intended to be used in applications where a precision, and low power DAC with moderate bandwidth is required.

Since the device includes nonvolatile EEPROM memory, the user can use this device for applications that require the output to return to the previous set-up value on subsequent power-ups.

Applications generally suited for the MCP4725 device family include:

• Set Point or Offset Trimming
• Sensor Calibration
• Portable Instrumentation (Battery Powered)
• Motor Speed Control