AD5310 Analog Devices, AD5310 Datasheet

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AD5310

Manufacturer Part Number
AD5310
Description
Manufacturer
Analog Devices
Datasheet

Specifications of AD5310

Resolution (bits)
10bit
Dac Update Rate
167kSPS
Dac Settling Time
6µs
Max Pos Supply (v)
+5.5V
Single-supply
Yes
Dac Type
Voltage Out
Dac Input Format
Ser,SPI

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a
GENERAL DESCRIPTION
The AD5310 is a single, 10-bit buffered voltage out DAC that
operates from a single +2.7 V to +5.5 V supply consuming
115 A at 3 V. Its on-chip precision output amplifier allows rail-
to-rail output swing to be achieved. The AD5310 utilizes a ver-
satile 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 AD5310 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 power-down
feature which 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 power-down
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 0.7 mW at 5 V reducing to 1 W in
power-down mode.
The AD5310 is one of a family of pin-compatible DACs. The
AD5300 is the 8-bit version and the AD5320 is the 12-bit ver-
sion. The AD5300/AD5310/AD5320 are available in 6-lead
SOT-23 packages and 8-lead SOIC packages.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corporation.
*Patent pending; protected by U.S. Patent No. 5684481.
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
FEATURES
Single 10-Bit DAC
6-Lead SOT-23 and 8-Lead SOIC Packages
Micropower Operation: 140
Power-Down to 200 nA @ 5 V, 50 nA @ 3 V
+2.7 V to +5.5 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
On-Chip Output Buffer Amplifier, Rail-to-Rail
SYNC Interrupt Facility
APPLICATIONS
Portable Battery Powered Instruments
Digital Gain and Offset Adjustment
Programmable Voltage and Current Sources
Programmable Attenuators
Inputs
Operation
A @ 5 V
Voltage Output 10-Bit DAC in a SOT-23
+2.7 V to +5.5 V, 140 A, Rail-to-Rail
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
PRODUCT HIGHLIGHTS
1. Available in 6-lead SOT-23 and 8-lead SOIC packages.
2. Low power, single supply operation. This part operates from
3. The on-chip output buffer amplifier allows the output of the
4. Reference derived from the power supply.
5. High speed serial interface with clock speeds up to 30 MHz.
6. Power-down capability. When powered down, the DAC
SYNC
a single +2.7 V to +5.5 V supply and typically consumes
0.35 mW at 3 V and 0.7 mW at 5 V, making it ideal for
battery powered applications.
DAC to swing rail-to-rail with a slew rate of 1 V/ s.
Designed for very low power consumption. The interface
only powers up during a write cycle.
typically consumes 50 nA at 3 V and 200 nA at 5 V.
CONTROL LOGIC
POWER-ON
REGISTER
INPUT
SCLK
RESET
DAC
FUNCTIONAL BLOCK DIAGRAM
DIN
REF (+) REF (–)
World Wide Web Site: http://www.analog.com
V
DD
10-BIT
DAC
CONTROL LOGIC
POWER-DOWN
GND
© Analog Devices, Inc., 1999
AD5310*
AD5310
RESISTOR
NETWORK
V
OUT

Related parts for AD5310

AD5310 Summary of contents

Page 1

... Programmable Voltage and Current Sources Programmable Attenuators GENERAL DESCRIPTION The AD5310 is a single, 10-bit buffered voltage out DAC that operates from a single +2 +5.5 V supply consuming 115 Its on-chip precision output amplifier allows rail- to-rail output swing to be achieved. The AD5310 utilizes a ver- satile three-wire serial interface that operates at clock rates MHz and is compatible with standard SPI™ ...

Page 2

... AD5310–SPECIFICATIONS Parameter 2 STATIC PERFORMANCE Resolution Relative Accuracy Differential Nonlinearity Zero Code Error Full-Scale Error Gain Error Zero Code Error Drift Gain Temperature Coefficient 3 OUTPUT CHARACTERISTICS Output Voltage Range Output Voltage Settling Time Slew Rate Capacitive Load Stability Digital-to-Analog Glitch Impulse ...

Page 3

... ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD5310 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality ...

Page 4

... DAC. PIN CONFIGURATIONS SOT- SYNC AD5310 5 SCLK DIN TOP VIEW (Not to Scale OUT CONNECT PIN FUNCTION DESCRIPTIONS –4– SOIC GND 8 AD5310 DIN 7 SCLK 6 TOP VIEW SYNC 5 (Not to Scale) should be de- DD REV. A ...

Page 5

... Hex) is loaded to the DAC register. Ideally the output should The zero-code error is always positive in the AD5310 because the output of the DAC cannot go below due to a combination of the offset errors in the DAC and output amplifier. Zero-code error is expressed in mV. A plot of zero-code error vs ...

Page 6

... AD5310 –Typical Performance Characteristics + INL @ –1 INL @ 5V –2 –3 –4 0 200 400 600 800 1000 CODE Figure 2. Typical INL Plot + MAX INL MAX DNL 0 MIN DNL MIN INL –2 –4 – 120 TEMPERATURE – C Figure 5 ...

Page 7

... HEX – 300 HEX OUTPUT LOADED WITH 2k AND 200pF TO GND CH1 1V, CH2 5V, TIME BASE = 1 s/DIV Figure 16. Half-Scale Settling Time 2.54 LOADED WITH 2k = +5V AND 200pF TO GND CODE CHANGE: 2.52 200 HEX TO 1FF HEX 2.50 2.48 2.46 500ns/DIV Figure 19. Digital-to-Analog Glitch Impulse AD5310 +105 C 4.7 5.2 ...

Page 8

... DIN line is clocked into the 16-bit shift register on the falling edge of SCLK. The serial clock frequency can be as high as 30 MHz making the AD5310 compatible with high speed DSPs. On the sixteenth falling clock edge, the last data bit is clocked in and the programmed function is executed (i.e., a change in DAC register contents and/or a change in the mode of operation) ...

Page 9

... See Figure 18 for a plot. DD MICROPROCESSOR INTERFACING AD5310 to ADSP-2101/ADSP-2103 Interface Figure 25 shows a serial interface between the AD5310 and the ADSP-2101/ADSP-2103. The ADSP-2101/ADSP-2103 should be set up to operate in the SPORT Transmit Alternate Framing Operating Mode Mode. The ADSP-2101/ADSP-2103 SPORT is programmed Normal Operation ...

Page 10

... AD5310. If the low DIN dropout REF195 is used, the current which it needs to supply to the AD5310 is 140 A. This is with no load on the output of the DAC. When the DAC output is loaded, the REF195 also needs to supply the current to the load. The total current required (with load on the DAC output) is: 140 V ...

Page 11

... R2 = 10k board. The printed circuit board containing the AD5310 should +5V have separate analog and digital sections, each having their own area of the board. If the AD5310 system where other AD820/ OP295 5V devices require an AGND to DGND connection, the connec- tion should be made at one point only. This ground point – ...

Page 12

... AD5310 0.071 (1.80) 0.059 (1.50) 0.051 (1.30) 0.035 (0.90) 0.006 (0.15) 0.002 (0.05) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 6-Lead SOT-23 (RT-6) 0.122 (3.10) 0.106 (2.70 0.118 (3.00) 0.098 (2.50 PIN 1 0.037 (0.95) BSC 0.075 (1.90) BSC 0.057 (1.45) 0.035 (0.90) 0.020 (0.50) SEATING 0.006 (0.15) 0.009 (0.23) PLANE 0.010 (0.25) 0.000 (0.00) 0.003 (0.08) 8-Lead SOIC (RM-8) 0.122 (3.10) 0.114 (2.90 0.122 (3.10) ...

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