AD5320BRT-R2

AD5320BRT-R2 Datasheet


V to V, 140 uA, Rail-to-Rail Output 12-Bit DAC in an SOT-23 AD5320

Part Datasheet
AD5320BRT-R2 AD5320BRT-R2 AD5320BRT-R2 (pdf)
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V to V, 140 uA, Rail-to-Rail Output 12-Bit DAC in an SOT-23 AD5320

Single 12-bit DAC 6-lead SOT-23 and 8-lead MSOP packages Micropower operation 140 uA 5 V Power-down to 200 nA 5 V, 50 nA 3 V to V power supply Guaranteed monotonic by design Reference derived from power supply Power-on reset to zero volts Three power-down functions Low power serial interface with Schmitt-triggered inputs On-chip output buffer amplifier, rail-to-rail operation SYNC interrupt facility

Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators

The AD53201 is a single, 12-bit buffered voltage out digital-toanalog converter DAC that operates from a single V to V supply consuming 115 uA at 3 V. Its on-chip precision output amplifier allows rail-to-rail output swing to be achieved. The AD5320 utilizes a versatile 3-wire serial interface that operates at clock rates up to 30 MHz and is compatible with standard QSPI , MICROWIRE and digital signal processing DSP interface standards.

The reference for AD5320 is derived from the power supply inputs and thus gives the widest dynamic output range. The part incorporates a power-on reset circuit that ensures that the DAC output powers up to zero volts and remains there until a valid write takes place to the device. The part contains a powerdown feature that reduces the current consumption of the device to 200 nA at 5 V and provides software selectable output loads while in power-down mode. The part is put into powerdown mode over the serial interface.

The low power consumption of this part in normal operation makes it ideally suited to portable, battery-operated equipment. The power consumption is mW at 5 V reducing to 1 uW in power-down mode.

FUNCTIONAL BLOCK DIAGRAM

VDD GND

POWER-ON RESET

AD5320

DAC REGISTER

REF + REF
12-BIT DAC

OUTPUT BUFFER

VOUT

INPUT CONTROL

LOGIC

POWER-DOWN CONTROL LOGIC

REGISTER NETWORK
00934-001

SYNC SCLK DIN

Figure

The AD5320 is one of a family of pin-compatible DACs. The AD5300 is the 8-bit version and the AD5310 is the 10-bit version. The AD5300/AD5310/AD5320 are available in 6-lead SOT-23 packages and 8-lead MSOP packages.

PRODUCT HIGHLIGHTS

Available in 6-lead SOT-23 and 8-lead MSOP packages.

Low power, single-supply operation. This part operates from a single V to V supply and typically consumes mW at 3 V and mW at 5 V, making it ideal for battery-powered applications.

The on-chip output buffer amplifier allows the output of the DAC to swing rail-to-rail with a slew rate of 1 V/us.

Reference derived from the power supply.

High speed serial interface with clock speeds up to 30 MHz. Designed for very low power consumption. The interface only powers up during a write cycle.

Power-down capability. When powered down, the DAC typically consumes 50 nA at 3 V and 200 nA at 5 V.
1 Patent pending protected by U.S. Patent No.

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AD5320* PRODUCT PAGE QUICK LINKS

Last Content Update 02/23/2017

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DOCUMENTATION
Serial Interface 12 Input Shift Register 12 SYNC Interrupt 12 Power-On 12 Power-Down Modes 13

Microprocessor 14 AD5320 to ADSP-2101/ADSP-2103 Interface 14 AD5320 to 68HC11/68L11 14 AD5320 to 80C51/80L51 Interface 14 AD5320 to MICROWIRE 14
15 Using REF19x as a Power Supply for AD5320 15 Bipolar Operation Using the AD5320 15 Using AD5320 with an Opto-Isolated Interface 15 Power Supply Bypassing and 16
Outline Dimensions 17 Ordering Guide 17

AD5320

SPECIFICATIONS

VDD = V to V RL = 2 kΩ to GND CL = 200 pF to GND all specifications TMIN to TMAX, unless otherwise noted.

Table

Parameter STATIC PERFORMANCE2

Resolution Relative Accuracy Differential Nonlinearity Zero-Code Error Full-Scale Error Gain Error Zero-Code Error Drift Gain Temperature Coefficient OUTPUT CHARACTERISTICS3 Output Voltage Range Output Voltage Settling Time

B Version1

Min Typ

Max Unit
5 −20 −5
±16 ±1 40

Bits LSB mV % of FSR % of FSR uV/°C ppm of FSR/°C
10 us

Slew Rate

Capacitive Load Stability
1000

Digital-to-Analog Glitch Impulse

Digital Feedthrough

DC Output Impedance

Short Circuit Current

Power-Up Time

LOGIC INPUTS3

Input Current

VINL, Input Low Voltage

VINL, Input Low Voltage

VINH, Input High Voltage

VINH, Input High Voltage

Pin Capacitance

POWER REQUIREMENTS

IDD Normal Mode

VDD = V to V

VDD = V to V

IDD All Power-Down Modes

VDD = V to V

VDD = V to V

POWER EFFICIENCY

IOUT/IDD
us V/us pF nV-s nV-s Ω mA us
±1 uA
250 uA 200 uA
ORDERING GUIDE

Model AD5320BRM-REEL AD5320BRM-REEL7 AD5320BRMZ1 AD5320BRMZ-REEL1 AD5320BRMZ-REEL71 AD5320BRT-500RL7 AD5320BRT-REEL AD5320BRT-REEL7 AD5320BRTZ-500RL71 AD5320BRTZ-REEL1 AD5320BRTZ-REEL71

Temperature Range −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C

Package Description 8-Lead Mini Small Outline Package [MSOP] 8-Lead Mini Small Outline Package [MSOP] 8-Lead Mini Small Outline Package [MSOP] 8-Lead Mini Small Outline Package [MSOP] 8-Lead Mini Small Outline Package [MSOP] 8-Lead Mini Small Outline Package [MSOP] 6-Lead Small Outline Transistor Package [SOT-23] 6-Lead Small Outline Transistor Package [SOT-23] 6-Lead Small Outline Transistor Package [SOT-23] 6-Lead Small Outline Transistor Package [SOT-23] 6-Lead Small Outline Transistor Package [SOT-23] 6-Lead Small Outline Transistor Package [SOT-23]

Branding D4B D9N D4B D9N
1 Z = Pb-free part.

Package Option RM-8 RM-8 RM-8 RM-8 RM-8 RM-8 RT-6 RT-6 RT-6 RT-6 RT-6 RT-6

AD5320 NOTES

NOTES

AD5320

AD5320 NOTES
2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.

D00934-0-11/05 C
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Datasheet ID: AD5320BRT-R2 517706