AD5040 General Description
The AD5040/AD5060, members of the nanoDACTM family, are single 14/16-bit buffered voltage out DACs. Both parts are available in a 8ld Sot23. The AD5040 can be operated from 2.7-5.5V and the AD5060 can be operated at 3V/5V. The part utilizes a versatile three-wire serial interface that operates at clock rates up to 30 MHz and is compatible with standard SPI™, QSPI™, MICROWIRE™ and DSP interface standards.
The reference for the AD5040/AD5060 is supplied from an external REF pin. A reference buffer is also provided on chip. The parts incorporate a power-on-reset circuit that ensures that the DAC output powers up to zero volts/ mid scale and remains there until a valid write takes place to the device. The parts also contain a power-down feature that reduces the current consumption of the device to 50nA at 5 V and provides software selectable output loads while in power-down mode. The part is put into power-down mode over the serial interface. Total unadjusted error for the part is <1mV. These parts also provide a very low glitch on power-up.
AD5040 Maximum Ratings
VDD to GND 0.3 V to + 7.0 V
Digital Input Voltage to GND 0.3 V to VDD + 0.3 V
VOUT to GND1 0.3 V to VDD + 0.3 V
Operating Temperature Range
Industrial (B Version) 40°C to +125°C
Storage Temperature Range 65°C to +150°C
Maximum Junction Temperature 150°C
SOT23 Package
Power Dissipation (Tj Max-Ta)/ JA
JA Thermal Impedance 229.6°C/W
JC Thermal Impedance 91.99°C/W
Lead Temperature, Soldering
Vapour Phase (60 Sec) 300°C
Infrared (15 Sec) 220°C
AD5040 Features
Single 14/16-Bit DAC, 1 Lsb inl.
1.8 Volt Digital Interface Capability
Power-On-Reset to Zero Volts/Mid Scale
Three Power-Down Functions
Low Power Serial Interface with Schmitt-
Triggered Inputs
8-Lead Sot23
Low Power Operation
Fast Settling.
Low Glitch on Powerup.
AD5040 Typical Application
Process Control
Data Acquisition Systems
Portable Battery Powered Instruments
Digital Gain and Offset Adjustment
Programmable Voltage and Current Sources
Programmable Attenuators
AD5040 Connection Diagram
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