Analog Devices AD5602 12 22 pB Datasheet

2.7 V to 5.5 V, <100 µA,

8/10/12 Bit D/A with I2C Compatible

Interface, tiny SC70 Package

Preliminary Technical Data

FEATURES

Single 8/10/12-bit DAC, 2 LSB INL

FUNCTIONAL BLOCK DIAGRAM

V

DD

GND

AD5602/12/22

6-lead SC70 package
Micropower operation: max 100 µA @ 5 V
Power-down to <100 nA @ 3 V

POWER-ON

RESET

2.7 V to 5.5 V power supply
Guaranteed monotonic by design
Power-on-reset to 0 V with brownout detection
3 power-down functions

2CR

Compatible Serial Interface supports:

I
Standard (100KHz), Fast (400KHz) and
High-Speed (3.4MHz) Modes
On-chip output buffer amplifier, rail-to-rail operation

DAC

REGISTER

INPUT

CONTROL

LOGIC

REF(+)

8/10/12-BIT

DAC

POWER-DOWN

CONTROL LOGIC

OUTPUT
BUFFER

APPLICATIONS

Process control
Data acquisition systems
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators

ADDR

SCL SDA

Figure 1

RELATED DEVICES

Part No. Description

AD5601/11/21

2.7V to 5.5 V, <100µA, 8/10/12 Bit nanoDACTM
D/A with SPI Interface in a tiny SC70 package

AD5602/12/22

RESISTOR
NETWORK

V

OUT

GENERAL DESCRIPTION

The AD5602/12/22, a member of the nanoDACTM D/A family is
a single, 8/10/12-bit buffered voltage out DAC that operates
from a single +2.7 V to +5.5 V supply consuming <100 µA at
5 V, and comes in a tiny SC70 package. Its on-chip precision
output amplifier allows rail-to-rail output swing to be achieved.

2

The AD5602/12/22 utilizes a 2-wire I

C compatible serial
interface that operates in Standard (100 KHz), Fast (400 KHz)
and High-Speed (3.4 MHz) Modes.

The reference for AD5602/12/22 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 the
DAC output powers up to 0 V and remains there until a valid
write takes place to the device. The part contains a power-down
feature that reduces the current consumption of the device to
<100 nA at 3 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

0.5 mW at 5 V.

Rev. PrB 18-Feb-05

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.

PRODUCT HIGHLIGHTS

1. Available in 6-lead SC70.

2. Max 100µA power consumption, single-supply operation.

This part operates from a single 2.7 V to 5.5 V supply and
typically consumes 0.2 mW at 3 V and 0.5 mW at 5 V,
making it ideal for battery-powered applications.

3. The on-chip output buffer amplifier allows the output of

the DAC to swing rail-to-rail with a typical slew rate of

0.5 V/µs.

4. Reference derived from the power supply.

2

5. Standard, Fast and High-Speed Mode I

C interface.

6. Designed for very low power consumption.

7. Power-down capability. When powered down, the DAC

typically consumes <100 nA at 3 V.

8. Brown out detection on power-on-reset.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] www.analog.com
Fax: [phone] © 2005 Analog Devices, Inc. All rights reserved.

AD5602/12/22 Preliminary Technical Data

TABLE OF CONTENTS

AD5602/12/22—Specifications ...................................................... 3

2

I

C Timing Specifications................................................................ 5

Absolute Maximum Ratings............................................................ 7

Ordering guide.............................................................................. 7

ESD Caution.................................................................................. 7

Pin Configuration and Function Description .............................. 8

Terminology ...................................................................................... 9

Typical Performance Characteristics ...........................................10

General Description ....................................................................... 13

D/A Section ................................................................................. 13

Resistor String............................................................................. 13

Output Amplifier........................................................................ 13

REVISION HISTORY

Revision PrB 18-Feb-05 : Preliminary Version

Serial Interface............................................................................ 14

Input Register.............................................................................. 14

Power-On-Reset ......................................................................... 15

Power-Down Modes .................................................................. 15

WRITE OPERATION ............................................................... 15

read OPERATION ..................................................................... 17

Placing the AD5602/12/22 -1 into High-speed mode........... 19

Applications..................................................................................... 20

Choosing a Reference as Power Supply for AD5602/12/22.. 20

Bipolar Operation Using the AD5602/12/22.......................... 20

Power Supply Bypassing and Grounding................................ 21

Outline Dimensions....................................................................... 22

Rev. PrB 18-Feb-05| Page 2 of 22

Preliminary Technical Data AD5602/12/22

AD5602/12/22—SPECIFICATIONS

Table 1. VDD = 2.7 V to 5.5 V; RL = 2 kΩ to GND; CL = 200 pF to GND; all specifications T

A,B,W,Y Version1

Parameter Min Typ Max Unit Test Conditions/Comments

STATIC PERFORMANCE

Resolution
AD5602
AD5612
AD5622
Relative Accuracy2

AD5602
AD5612

AD5622

8
10
12

Bits

±1
±0.5
±4
±2
±6

LSB
LSB
LSB
LSB

LSB
Differential Nonlinearity2 ±1 LSB Guaranteed Monotonic by Design.
Zero Code Error TBD LSB All 0s Loaded to DAC Register.
Full-Scale Error TBD LSB All 1s Loaded to DAC Register.
Gain Error TBD % of FSR
Zero Code Error Drift TBD µV/°C
Gain Temperature Coefficient TBD ppm of FSR/°C

OUTPUT CHARACTERISTICS3

Output Voltage Range 0 VDD V
Output Voltage Settling Time 8 18 µs Code ¼ to ¾
Slew Rate 0.5 V/µs
Capacitive Load Stability 470 pF RL = ∞

1000 pF RL = 2 kΩ

Output Noise Spectral Density 120 nV/Hz DAC code=TBD , 10 kHz
Noise TBD DAC code=TBD 0.1-10Hz Bandwidth
Digital-to-Analog Glitch Impulse 10 nV-s 1 LSB Change Around Major Carry.
Digital Feedthrough 0.5 nV-s
DC Output Impedance 1

Ω

Short Circuit Current 20 mA VDD = +3V/+5 V

LOGIC INPUTS (SDA, SCL)

IIN, Input Current ±1 µA
V

, Input Low Voltage 0.3(VDD) V

INL

V

, Input High Voltage 0.7(VDD) V

INH

CIN, Pin Capacitance 3 pF
V

, Input Hysteresis 0.1(VDD) V

HYST

LOGIC OUTPUTS (OPEN DRAIN)

VOL, Output Low Voltage 0.4 V I

0.6 V I
Floating-State Leakage Current ±1 µA
Floating-State Output Capacitance TBD pF

POWER REQUIREMENTS

VDD 2.7 5.5 V
IDD (Normal Mode) DAC Active and Excluding Load Current
VDD = +4.5 V to +5.5 V 100 µA VIH = VDD and VIL = GND
VDD = +2.7 V to +3.6 V 70 µA VIH = VDD and VIL = GND

to T

MIN

MAX

B,Y Versions
B,Y Versions
A Version
B,Y Versions
A,W versions

= 3 mA

SINK

= 6 mA

SINK

unless otherwise noted

1

Temperature ranges are as follows: A,B Version: –40°C to +125°C, typical at 25°C.

2

Linearity calculated using a reduced code range 120-16179.

3

Guaranteed by design and characterization, not production tested.

Rev. PrB 18-Feb-05| Page 3 of 22

AD5602/12/22 Preliminary Technical Data

A,B,W,Y Version1

Parameter Min Typ Max Unit Test Conditions/Comments

IDD (All Power-Down Modes)
VDD = +4.5 V to +5.5 V 0.2 1 µA VIH = VDD and VIL = GND
VDD = +2.7 V to +3.6 V 0.05 1 µA VIH = VDD and VIL = GND

POWER EFFICIENCY

I

TBD % I

OUT/IDD

= 2 mA. VDD = +5 V

LOAD

Rev. PrB 18-Feb-05| Page 4 of 22

Preliminary Technical Data AD5602/12/22

I2C TIMING SPECIFICATIONS4

Table 2. VDD = 2.7 V to 5.5 V; all specifications T

Parameter Conditions Limit at T

f

SCL5

Standard Mode
Fast Mode
High-Speed Mode, C
High-Speed Mode, C

t

1

Standard Mode

= 100pF

B

= 400pF

B

Fast Mode
High-Speed Mode, C
High-Speed Mode, C

t

2

Standard Mode

= 100pF

B

= 400pF

B

Fast Mode
High-Speed Mode, C
High-Speed Mode, C

= 100pF

B

= 400pF

B

t3 Standard Mode

Fast Mode
High-Speed Mode

t

4

Standard Mode
Fast Mode
High-Speed Mode, C
High-Speed Mode, C

t

5

Standard Mode

= 100pF

B

= 400pF

B

Fast Mode
High-Speed Mode

t

6

Standard Mode
Fast Mode
High-Speed Mode

t

7

Standard Mode
Fast Mode

t

8

Standard Mode
Fast Mode
High-Speed Mode

t

9

Standard Mode
Fast Mode
High-Speed Mode, C
High-Speed Mode, C

t

10

Standard Mode

= 100pF

B

= 400pF

B

Fast Mode
High-Speed Mode, C
High-Speed Mode, C

t

11

Standard Mode

= 100pF

B

= 400pF

B

Fast Mode
High-Speed Mode, C
High-Speed Mode, C

= 100pF

B

= 400pF

B

to T

MIN

MIN MAX

100

4

0.6
60
120

4.7

1.3
160
320
250
100
10
0
0
0
0

4.7

0.6
160
4

0.6
160

4.7

1.3
4

0.6
160

­20+0.1C
10
20

­20+0.1C
10
20

­20+0.1C
10
20

, f

MAX

= 3.4 MHz unless otherwise noted. See Figure 2.

SCL

, T

MIN

Unit Description

MAX

400

3.4

1.7
µS

µS

nS

3.45

0.9
70
150
µS

µS

µS

µS

1000
300

B

80
160
300
300

B

80
160
1000
300

B

40
80

KHz
KHz
MHz
MHz

µS
µS
µS

µS
nS
nS

nS
nS
µS
µS
nS
nS

µS
nS

µS
nS

µS

µS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS

Serial Clock Frequency

t

, SCL High Time

HIGH

t

, SCL Low Time

LOW

t

, Data Setup Time

SU;DAT

t

, Data Hold Time

HD;DAT

t

, Set-up Time for a repeated START

SU;STA

Condition

t

, Hold Time (repeated) START

HD;STA

Condition

t

, Bus Free Time Between a STOP and a

BUF

START Condition

t

, Set-up Time for a STOP Condition

SU;STO

t

, Rise Time of SDA Signal

RDA

t

, Fall Time of SDA Signal

FDA

t

, Rise Time of SCL Signal

RCL

4

See Figure 2. HS-Mode timing specification applies to the AD5602/12/22-1 only. Standard and Fast-mode timing specifications apply to both the AD5602/12/22-1 and

AD5602/12/22-2. C

5

The SDA and SCL timing is measured with the input filters enabled. Switching off the input filters improves the transfer rate but has a negative effect on EMC behavior

of the part.

refers to the capacitance load on the bus line.

B

Rev. PrB 18-Feb-05| Page 5 of 22

AD5602/12/22 Preliminary Technical Data

t

Parameter Conditions Limit at Tmin, Tmax Unit Description
MIN MAX

t

11A

t

12

t

SP6

Standard Mode
Fast Mode
High-Speed Mode, C
High-Speed Mode, C
Standard Mode
Fast Mode
High-Speed Mode, C
High-Speed Mode, C
Fast Mode
High-Speed Mode

= 100pF

B

= 400pF

B

= 100pF

B

= 400pF

B

­20+0.1C
10
20

­20+0.1C
10
20
0
0

1000
300

B

80
160
300
300

B

40
80
50
10

t

12

t

t

3

1

SCL

SDA

11

t

2

t

6

t

7

S

P

t

4

nS
nS
nS

t

, Rise Time of SCL signal after a

RCL1

repeated START Condition and after an
Acknowledge bit

nS
nS

t

, Fall Time of SCL Signal

FCL

nS
nS
nS
nS

Pulsewidth of Spike Suppressed

nS

t

6

t

5

t

10

S

t

8

t

9

P

S = START CONDITION

P = STOP CONDITION

Figure 2. Two-Wire Serial Interface Timing Diagram

6

Input filtering on both the SCL and SDA inputs suppress noise spikes that are less than 50nS or 10nS for Fast Mode or High-Speed Mode respectively

Specifications subject to change without notice.

Rev. PrB 18-Feb-05| Page 6 of 22

Preliminary Technical Data AD5602/12/22

ABSOLUTE MAXIMUM RATINGS

Table 3. TA = 25°C, unless otherwise noted

Parameter Rating

VDD to GND –0.3 V to + 7.0 V
Digital Input Voltage to GND –0.3 V to VDD + 0.3 V
V

to GND –0.3 V to VDD + 0.3 V

OUT

Operating Temperature Range

Extended Automotive (W,Y Version) –40°C to +125°C
Extended industrial (A,B Version) -40°C to + 85°C

Storage Temperature Range –65°C to +160°C
Maximum Junction Temperature 150°C
SC70 Package

θJA Thermal Impedance 332°C/W
θJC Thermal Impedance 120°C/W

Lead Temperature, Soldering

Vapor Phase (60 sec) 215°C
Infrared (15 sec) 220°C

ESD 2.0 kV

ORDERING GUIDE

Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those listed in the operational sections
of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.

Model INL I2C Interface Modes Supported Temperature Range Power Supply

AD5602YKSZ-1 ± 1 LSB Max Standard , Fast and High Speed Modes -40°C to 125°C 2.7 V to 5.5V KS-6 6-Lead SC-70 D5W

AD5602BKSZ-2 ± 1 LSB Max Standard, Fast Modes -40°C to 85°C 2.7 V to 5.5V KS-6 6-Lead SC-70 D5X

AD5602YKSZ-2 ± 1 LSB Max Standard , Fast Modes -40°C to 125°C 2.7 V to 5.5V KS-6 6-Lead SC-70 D5Y

AD5612YKSZ-1 ± 0.5 LSB Max Standard , Fast and High Speed Modes -40°C to 125°C 2.7 V to 5.5V KS-6 6-Lead SC-70 D5T

AD5612BKSZ-2 ± 0.5 LSB Max Standard, Fast Modes -40°C to 85°C 2.7 V to 5.5V KS-6 6-Lead SC-70 D5U

AD5612AKSZ-2 ± 4 LSB Max Standard , Fast Modes -40°C to 85°C 2.7 V to 5.5V KS-6 6-Lead SC-70 D5V

AD5612YKSZ-2 ± 0.5 LSB Max Standard, Fast Modes -40°C to 125°C 2.7 V to 5.5V KS-6 6-Lead SC-70 D5S

AD5622YKSZ-1 ± 2 LSB Max Standard , Fast and High Speed Modes -40°C to 125°C 2.7 V to 5.5V KS-6 6-Lead SC-70 D5M

AD5622BKSZ-2 ± 2 LSB Max Standard, Fast Modes -40°C to 85°C 2.7 V to 5.5V KS-6 6-Lead SC-70 D5N

AD5622YKSZ-2 ± 2 LSB Max Standard , Fast Modes -40°C to 125°C 2.7 V to 5.5V KS-6 6-Lead SC-70 D5P

AD5622WKSZ-1 ± 6 LSB Max Standard , Fast and High Speed Modes -40°C to 125°C 2.7 V to 5.5V KS-6 6-Lead SC-70 D5Q

AD5622AKSZ-2 ± 6 LSB Max Standard, Fast Modes -40°C to 85°C 2.7 V to 5.5V KS-6 6-Lead SC-70 D5R

Range

Package
Option

Package
Description

Branding

ESD CAUTION

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 this product 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.

Rev. PrB 18-Feb-05| Page 7 of 22