AD5305BRMZ Analog Devices Inc, AD5305BRMZ Datasheet

IC DAC 8BIT 2WIRE I2C 10-MSOP

AD5305BRMZ

Manufacturer Part Number
AD5305BRMZ
Description
IC DAC 8BIT 2WIRE I2C 10-MSOP
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD5305BRMZ

Data Interface
I²C, Serial
Settling Time
6µs
Number Of Bits
8
Number Of Converters
4
Voltage Supply Source
Single Supply
Power Dissipation (max)
5mW
Operating Temperature
-40°C ~ 105°C
Mounting Type
Surface Mount
Package / Case
10-MSOP, Micro10™, 10-uMAX, 10-uSOP
Resolution (bits)
8bit
Sampling Rate
167kSPS
Input Channel Type
Serial
Supply Voltage Range - Analog
2.5V To 5.5V
Supply Current
600µA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD5305BRMZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
FEATURES
AD5305: 4 buffered 8-bit DACs in 10-lead MSOP
AD5315: 4 buffered 10-bit DACs in 10-lead MSOP
AD5325: 4 buffered 12-bit DACs in 10-lead MSOP
Low power operation: 500 μA @ 3 V, 600 μA @ 5 V
2-wire (I
2.5 V to 5.5 V power supply
Guaranteed monotonic by design over all codes
Power-down to 80 nA @ 3 V, 200 nA @ 5 V
Three power-down modes
Double-buffered input logic
Output range: 0 V to V
Power-on reset to 0 V
Simultaneous update of outputs (LDAC function)
Software clear facility
Data readback facility
On-chip rail-to-rail output buffer amplifiers
Temperature range: −40°C to +105°C
APPLICATIONS
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators
Industrial process control
Rev. G
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 that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
A version: ±1 LSB INL, B version: ±0.625 LSB INL
A version: ±4 LSB INL, B version: ±2.5 LSB INL
A version: ±16 LSB INL, B version: ±10 LSB INL
2
C®-compatible) serial interface
REF
SDA
SCL
A0
INTERFACE
LOGIC
POWER-ON
RESET
LDAC
FUNCTIONAL BLOCK DIAGRAM
Quad Voltage Output, 8-/10-/12-Bit DACs
2.5 V to 5.5 V, 500 μA, 2-Wire Interface
V
REGISTER
REGISTER
REGISTER
REGISTER
DD
INPUT
INPUT
INPUT
INPUT
AD5305/AD5315/AD5325
GND
Figure 1.
REGISTER
REGISTER
REGISTER
REGISTER
DAC
DAC
DAC
DAC
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
GENERAL DESCRIPTION
The AD5305/AD5315/AD5325
buffered voltage output DACs in a 10-lead MSOP that operate
from a single 2.5 V to 5.5 V supply, consuming 500 μA at 3 V.
Their on-chip output amplifiers allow rail-to-rail output swing
with a slew rate of 0.7 V/μs. A 2-wire serial interface that
operates at clock rates up to 400 kHz is used. This interface is
SMBus compatible at V
placed on the same bus.
The references for the four DACs are derived from one
reference pin. The outputs of all DACs can be updated
simultaneously using the software LDAC function.
The parts incorporate a power-on reset circuit, which ensures
that the DAC outputs power up to 0 V and remain there until a
valid write takes place to the device. There is also a software
clear function to reset all input and DAC registers to 0 V. The
parts contain a power-down feature that reduces the current
consumption of the devices to 200 nA @ 5 V (80 nA @ 3 V).
The low power consumption of these parts in normal operation
makes them ideally suited for portable battery-operated equip-
ment. The power consumption is 3 mW at 5 V, 1.5 mW at 3 V,
reducing to 1 μW in power-down mode.
1
Protected by U.S. Patent No. 5,969,657 and 5,684,481.
STRING
STRING
STRING
STRING
REF IN
DAC A
DAC B
DAC C
DAC D
BUFFER
BUFFER
BUFFER
BUFFER
POWER-DOWN
AD5305/AD5315/AD5325
LOGIC
DD
©2006 Analog Devices, Inc. All rights reserved.
V
V
V
V
< 3.6 V. Multiple devices can be
OUT
OUT
OUT
OUT
A
B
C
D
1
are quad 8-, 10-, and 12-bit
www.analog.com

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AD5305BRMZ Summary of contents

Page 1

FEATURES AD5305: 4 buffered 8-bit DACs in 10-lead MSOP A version: ±1 LSB INL, B version: ±0.625 LSB INL AD5315: 4 buffered 10-bit DACs in 10-lead MSOP A version: ±4 LSB INL, B version: ±2.5 LSB INL AD5325: 4 buffered ...

Page 2

AD5305/AD5315/AD5325 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 AC Characteristics........................................................................ 5 Timing Characteristics ................................................................ 5 Absolute Maximum Ratings............................................................ 7 ESD Caution.................................................................................. 7 Pin Configuration ...

Page 3

SPECIFICATIONS kΩ to GND REF L Table 1. Parameter 2 Min PERFORMANCE AD5305 Resolution Relative Accuracy Differential Nonlinearity AD5315 Resolution Relative ...

Page 4

AD5305/AD5315/AD5325 2 Parameter Min 5 LOGIC INPUTS (A0) Input Current Input Low Voltage Input High Voltage, V 2.4 IH 2.1 2.0 Pin Capacitance 5 LOGIC INPUTS (SCL, SDA) Input High Voltage Input Low ...

Page 5

AC CHARACTERISTICS kΩ to GND Table 2. Parameter 2, 3 Output Voltage Settling Time AD5305 AD5315 AD5325 Slew Rate Major-Code Transition Glitch Energy Digital Feedthrough Digital Crosstalk ...

Page 6

AD5305/AD5315/AD5325 SDA SCL t 4 START CONDITION Figure 2. 2-Wire Serial Interface Timing Diagram Rev Page ...

Page 7

ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 4. 1 Parameter Rating V to GND –0 SCL, SDA to GND –0 GND –0 Reference ...

Page 8

AD5305/AD5315/AD5325 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 5. Pin Function Descriptions Pin No. Mnemonic Description 1 V Power Supply Input. These parts can be operated from 2 5.5 V and the supply should be decoupled to GND. DD ...

Page 9

TYPICAL PERFORMANCE CHARACTERISTICS 1 25° 0.5 0 –0.5 –1 100 150 CODE Figure 4. AD5305 Typical INL Plot 25° –1 ...

Page 10

AD5305/AD5315/AD5325 0. 25°C A 0.25 MAXINL 0 MIN DNL –0.25 MIN INL –0. (V) REF Figure 10. AD5305 INL and DNL Error vs ...

Page 11

V (V) DD Figure 16. Supply Current vs. Supply Voltage 0.5 0.4 0.3 –40°C 0.2 +25°C 0.1 +105°C 0 2.5 3.0 3.5 4.0 4.5 V ...

Page 12

AD5305/AD5315/AD5325 300 350 400 450 500 I (µA) DD Figure 22. I Histogram with and 2.50 2.49 2.48 2.47 1µs/DIV Figure 23. AD5325 Major-Code Transition Glitch Energy 10 0 ...

Page 13

TERMINOLOGY Relative Accuracy For the DAC, relative accuracy or integral nonlinearity (INL measure of the maximum deviation, in LSB, from a straight line passing through the endpoints of the DAC transfer function. Typical INL versus code plots can ...

Page 14

AD5305/AD5315/AD5325 OUTPUT IDEAL VOLTAGE ACTUAL NEGATIVE OFFSET DAC CODE ERROR DEAD BAND CODES AMPLIFIER FOOTROOM (1mV) NEGATIVE OFFSET ERROR Figure 27. Transfer Function with Negative Offset GAIN ERROR PLUS OFFSET ERROR OUTPUT VOLTAGE POSITIVE OFFSET Rev Page 14 ...

Page 15

FUNCTIONAL DESCRIPTION The AD5305/AD5315/AD5325 are quad resistor-string DACs fabricated on a CMOS process with resolutions of 8, 10, and 12 bits, respectively. Each contains four output buffer amplifiers and is written to via a 2-wire serial interface. They operate from ...

Page 16

AD5305/AD5315/AD5325 SERIAL INTERFACE The AD5305/AD5315/AD5325 are controlled via an I compatible serial bus. The DACs are connected to this bus as slave devices (that is, no clock is generated by the AD5305/ AD5315/AD5325 DACs). This interface is SMBus compatible at ...

Page 17

Table 7. CLR and LDAC Bit Descriptions Bit Description CLR [0] All DAC registers and input registers are filled with 0s on completion of the write sequence. [1] Normal operation. LDAC [0] All four DAC registers and, therefore, all DAC ...

Page 18

AD5305/AD5315/AD5325 SCL SDA START COND ADDRESS BYTE BY MASTER SCL SDA REPEATED START ADDRESS BYTE COND BY MASTER SCL MSB SDA LEAST SIGNIFICANT DATA BYTE NOTE: DATA BYTES ARE THE SAME AS ...

Page 19

When both bits are set to 0, the DAC works normally with its normal power consumption of 600 μ However, for the three power-down modes, the supply current falls to 200 (80 nA ...

Page 20

AD5305/AD5315/AD5325 APPLICATIONS TYPICAL APPLICATION CIRCUIT The AD5305/AD5315/AD5325 can be used with a wide range of reference voltages where the devices offer full, one-quadrant multiplying capability over a reference range More typically, these devices are used ...

Page 21

AD5305/AD5315/AD5325 AS A DIGITALLY PROGRAMMABLE WINDOW DETECTOR A digitally programmable upper/lower limit detector using two of the DACs in the AD5305/AD5315/AD5325 is shown in Figure 39. The upper and lower limits for the test are loaded to DAC A and ...

Page 22

AD5305/AD5315/AD5325 Table 9. Overview of All AD53xx Serial Devices Part No. Resolution No. of DACs SINGLES AD5300 8 1 AD5310 10 1 AD5320 12 1 AD5301 8 1 AD5311 10 1 AD5321 12 1 DUALS AD5302 8 2 AD5312 10 ...

Page 23

... AD5305BRM −40°C to +105°C AD5305BRM-REEL −40°C to +105°C AD5305BRM-REEL7 −40°C to +105°C 1 AD5305BRMZ −40°C to +105°C AD5305BRMZ-REEL7 1 −40°C to +105°C AD5315ARM −40°C to +105°C AD5315ARM-REEL7 −40°C to +105°C 1 AD5315ARMZ −40°C to +105°C AD5315BRM − ...

Page 24

AD5305/AD5315/AD5325 NOTES Purchase of licensed components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I 2 Rights to use these components system, ...

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