TEXAS INSTRUMENTS DAC7744 Technical data

®

For most current data sheet and other product

information, visit www.burr-brown.com

16-Bit, Quad Voltage Output

DIGITAL-TO-ANALOG CONVERTER

DAC7744

DAC7744

FEATURES

● LOW POWER: 200mW

● UNIPOLAR OR BIPOLAR OPERATION

● SINGLE-SUPPLY OUTPUT RANGE: +10V

● DUAL SUPPLY OUTPUT RANGE: ±10V

● SETTLING TIME: 10µs to 0.003%

● 16-BIT MONOTONICITY: –40°C to +85°C

● PROGRAMMABLE RESET TO MID-SCALE

OR ZERO-SCALE

● DATA READBACK

● DOUBLE-BUFFERED DATA INPUTS

APPLICATIONS

● PROCESS CONTROL

● ATE PIN ELECTRONICS

● CLOSED-LOOP SERVO-CONTROL

● MOTOR CONTROL

● DATA ACQUISITION SYSTEMS

● DAC-PER-PIN PROGRAMMERS

V

V

DAC7744

V

DD

CC

SS

DESCRIPTION

The DAC7744 is a 16-bit, quad voltage output digital­to-analog converter with guaranteed 16-bit monotonic
performance over the specified temperature range. It
accepts 16-bit parallel input data, has double-buffered
DAC input logic (allowing simultaneous update of all
DACs), and provides a readback mode of the internal
input registers. Programmable asynchronous reset
clears all registers to a mid-scale code of 8000H or to
a zero-scale of 0000H. The DAC7744 operates from
either a single +15V supply or from a +15V, –15V,
and +5V supply.

Low power and small size per DAC make the DAC7744
ideal for automatic test equipment, DAC-per-pin pro­grammers, data acquisition systems, and closed-loop
servo-control. The DAC7744 is available in a 48­lead SSOP package, and offers guaranteed specifica­tions over the –40°C to +85°C temperature range.

V

V

REF

AB Sense

L

V

L AB V

REF

REF

H AB

REF

AB Sense

H

SBAS120

16

DATA I/O

A1
A0

CS

R/W

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: [phone]

Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]

I/O

Buffer

Control

Logic

Input

Register A

Input

Register B

Input

Register C

Input

Register D

AGND DGND

© 1999 Burr-Brown Corporation PDS-1534A Printed in U.S.A. November, 1999

DAC

Register A

DAC

Register B

DAC

Register C

DAC

Register D

RST LOADDACs

RSTSEL

1

V

REF

CD Sense

DAC A

DAC B

DAC C

DAC D

V

L CD V

L

REF

H CD

REF

V

H

REF

CD Sense

V

V

V

V

V

V

V

V

OUT

OUTA

OUT

OUTB

OUT

OUTC

OUT

OUTD

A

Sense

B

Sense

C

Sense

D

Sense

DAC7744

®

SPECIFICATIONS (Dual Supply)

At TA = T

PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
ACCURACY

Linearity Error T = 25°C ±3 ✻ ±2 LSB

Linearity Match ±4 ✻ ±2 LSB
Differential Linearity Error T = 25°C ±3 ±2 ±1 LSB

Monotonicity, T
Bipolar Zero Error
Bipolar Zero Error, T
Full-Scale Error T = 25°C ±0.025 ✻✻% of FSR
Full-Scale Error, T
Bipolar Zero Matching Channel-to-Channel ±0.024 ✻✻% of FSR

Full-Scale Matching Channel-to-Channel ±0.024 ✻✻% of FSR

Power Supply Rejection Ratio (PSRR)

ANALOG OUTPUT

Voltage Output V
Output Current ±5 ✻✻ mA
Maximum Load Capacitance 500 ✻✻pF
Short-Circuit Current ±20 ✻✻mA
Short-Circuit Duration To V

REFERENCE INPUT

Ref High Input Voltage Range
Ref Low Input Voltage Range –10
Ref High Input Current –0.3 2.6 ✻✻mA
Ref Low Input Current –3.2 –0.3 ✻✻mA

DYNAMIC PERFORMANCE

Settling Time To ±0.003%, 20V 9 11 ✻✻ ✻✻ µs

Channel-to-Channel Crosstalk See Figure 5 0.5 ✻✻LSB
Digital Feedthrough 2 ✻✻nV-s
Output Noise Voltage f = 10kHz 60 ✻✻nV/√Hz

DIGITAL INPUT

V
V
I

IH

I

IL

DIGITAL OUTPUT

V
V

POWER SUPPLY

V
V
V
I

DD

I

CC

I

SS

Power 170 200 ✻✻mW

TEMPERATURE RANGE

Specified Performance –40 +85 ✻✻✻✻°C

✻ Specifications same as grade to the left.

to T

MIN

, VCC = +15V, VDD = +5V, VSS = –15V, V

MAX

H = +10V, and V

REF

L = –10V, unless otherwise noted.

REF

DAC7744E DAC7744EB DAC7744EC

T

to T

MIN

MAX

T

to T

MIN

MAX

MIN

to T

MIN

MIN

MAX

to T

to T

T = 25°C ±0.01 ±0.025 ✻✻% of FSR

MAX

MAX

14 15 16 Bits

±4 ✻ ±3 LSB

±3 ±2 ±1 LSB

±0.05 ✻✻% of FSR

±0.05 ✻✻% of FSR

Matching

Matching

At Full Scale 25 ✻✻ppm/V

LV

REF

, V

or GND Indefinite ✻✻

SS

DD

V

L + 1.25

REF

H ✻✻✻✻V

REF

+10 ✻✻✻✻V

V

H – 1.25

REF

✻✻✻✻V

Output Step

IH
IL

0.7 • V

DD

0 0.3 • V

V

±10 ✻ µA

✻✻ V

DD

DD

✻ V

±10 ✻ µA

OH
OL

DD
CC
SS

IOH = –0.8mA 3.6 4.5 ✻✻ ✻✻ V

IOL = 1.6mA 0.3 0.4 ✻✻ ✻✻ V

+4.75 +5.0 +5.25 ✻✻✻✻✻✻ V
+14.25 +15.0 +15.75 ✻✻✻✻✻✻ V
–14.25 –15.0 –15.75 ✻✻✻✻✻✻ V

50 ✻✻µA

6 ✻✻mA

–5 ✻✻mA

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.

®

DAC7744

2

SPECIFICATIONS (Single Supply)

At TA = T

PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
ACCURACY

Linearity Error

Linearity Match ±4 ✻ ±2 LSB
Differential Linearity Error T = 25°C ±3 ±2 ±1 LSB

Monotonicity, T
Unipolar Zero T = 25°C ±0.01 ±0.025 ✻✻% of FSR
Unipolar Zero Error,
Full-Scale Error T = 25°C ±0.025 ✻✻% of FSR
Full-Scale Error,
Unipolar Zero Matching Channel-to-Channel ±0.024 ✻✻% of FSR

Full-Scale Matching Channel-to-Channel ±0.024 ✻✻% of FSR

Power Supply Rejection Ratio (PSRR)

ANALOG OUTPUT

Voltage Output V

Output Current ±5 ✻✻ mA
Maximum Load Capacitance 500 ✻✻pF
Short-Circuit Current ±20 ✻✻mA
Short-Circuit Duration To V

REFERENCE INPUT

Ref High Input Voltage Range
Ref Low Input Voltage Range 0
Ref High Input Current –0.3 1.0 ✻✻mA
Ref Low Input Current –1.5 –0.3 ✻✻mA

DYNAMIC PERFORMANCE

Settling Time To ±0.003%, 10V 8 10 ✻✻ ✻✻ µs

Channel-to-Channel Crosstalk See Figure 6 0.5 ✻✻LSB
Digital Feedthrough 2 ✻✻nV-s
Output Noise Voltage f = 10kHz 60 ✻✻nV/√Hz

DIGITAL INPUT

V
V
I

IH

I

IL

DIGITAL OUTPUT

V
V

POWER SUPPLY

V
V
V
I

DD

I

CC

Power 50 70 ✻✻mW

TEMPERATURE RANGE

Specified Performance –40 +85 ✻✻✻✻°C

✻ Specifications same as grade to the left.

NOTE: (1) If V

to T

MIN

, VCC = +15V, VDD = +5V, VSS = GND, V

MAX

H = +10V, and V

REF

L = +50mV, unless otherwise noted.

REF

DAC7744E DAC7744EB DAC7744EC

(1)

T

to T

MIN

MAX

T

to T

MIN

MAX

to T

MIN

MAX

T

to T

MIN

MAX

T

to T

MIN

MAX

T = 25°C ±3 ✻ ±2 LSB

±4 ✻ ±3 LSB

±3 ±2 ±1 LSB

14 15 16 Bits

±0.05 ✻✻% of FSR

±0.05 ✻✻% of FSR

Matching

Matching

At Full Scale 25 ✻✻ppm/V

L = 0V, VSS = 0V 0 V

REF

R = 10kΩ

, V

or GND Indefinite ✻✻

SS

CC

V

L + 1.25

REF

H ✻✻✻✻V

REF

+10 ✻✻✻✻V

V

H – 1.25

REF

✻✻✻✻V

Output Step

IH
IL

0.7 • V

DD

0 0.3 • V

V

±10 ✻ µA

✻✻ V

DD

DD

✻ V

±10 ✻ µA

OH
OL

DD
CC
SS

IOH = –0.8mA 3.6 4.5 ✻✻ ✻✻ V

IOL = 1.6mA 0.3 0.4 ✻✻ ✻✻ V

+4.75 +5.0 +5.25 ✻✻✻✻✻✻ V

+14.25 +15.0 +15.75 ✻✻✻✻✻✻ V

0 ✻✻V

50 ✻✻µA

3.5 ✻✻mA

= 0V, the specification applies at code 0021H and above, due to possible negative zero scale error.

SS

®

3

DAC7744

ABSOLUTE MAXIMUM RATINGS

V

to VSS...........................................................................–0.3V to +32V

CC

V

to AGND ...................................................................... –0.3V to +16V

CC

V

to AGND ...................................................................... +0.3V to –16V

SS

AGND

to DGND................................................................. –0.3V to +0.3V

V

to AGND ..................................................................... –9V to +11V

REFH

V

to AGND...................................................................... –11V to +9V

REFL

V

to GND ........................................................................... –0.3V to +6V

DD

V

to V

REFH

Digital Input Voltage to GND ................................... –0.3V to V

Digital Output Voltage to GND................................. –0.3V to V

Maximum Junction Temperature................................................... +150 °C

Operating Temperature Range ........................................–40°C to +85°C

Storage Temperature Range ......................................... –65°C to +150°C

Lead Temperature (soldering, 10s)............................................... +300°C

NOTE: (1) Stresses above those listed under “Absolute Maximum Ratings”
may cause permanent damage to the device. Exposure to absolute maximum
conditions for extended periods may affect device reliability.

L ........................................................................ –1V to 22V

REF

(1)

ELECTROSTATIC
DISCHARGE SENSITIVITY

This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.

+ 0.3V

DD

+ 0.3V

DD

ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.

PACKAGE/ORDERING INFORMATION

LINEARITY DIFFERENTIAL PACKAGE SPECIFICATION

PRODUCT (LSB) (LSB) PACKAGE NUMBER RANGE NUMBER

ERROR NONLINEARITY DRAWING TEMPERATURE ORDERING TRANSPORT

DAC7744E ±4 ±3 48-Lead SSOP 333 –40°C to +85°C DAC7744E Rails

"" """ "DAC7744E/1K Tape and Reel

DAC7744EB ±4 ±2 48-Lead SSOP 333 –40°C to +85°C DAC7744EB Rails

"" """ "DAC7744EB/1K Tape and Reel

DAC7744EC ±3 ±1 48-Lead SSOP 333 –40°C to +85°C DAC7744EC Rails

"" """ "DAC7744EC/1K Tape and Reel

NOTE: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /1K indicates 1000 devices per reel). Ordering 1000 pieces
of “DAC7744E/1K” will get a single 1000-piece Tape and Reel.

(1)

MEDIA

ESD PROTECTION CIRCUITS

RefH

RefH Sense

RefL Sense

RefL

Typ of Each

Logic Input Pin

1 of 2

V

CC

V

Sense

OUT

V

OUT

4

V

SS

1 of 4

V

DD

V

CC

AGND

V

SS

V

DD

Typ of Each

I/O Pin

®

DAC7744

DGND

DGND

4

PIN CONFIGURATION

Top View SSOP

DB15 (MSB)

DB14
DB13
DB12
DB11
DB10

DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1

DB0 (LSB)

RSTSEL

RST

LOADDACs

R/W

A1
A0

CS

DGND

1
2
3
4
5
6
7
8

9
10
11
12

DAC7744

13
14
15
16
17
18
19
20
21
22
23
24

48

NC

47

NC

46

NC

45

NC

44

V

A Sense

OUT

43

V

A

OUT

42

V

L AB Sense

REF

41

V

L AB

REF

40

V

H AB

REF

39

V

H AB Sense

REF

38

V

B Sense

OUT

37

V

B

OUT

36

V

C Sense

OUT

35

V

C

OUT

34

V

H CD Sense

REF

33

V

H CD

REF

32

V

L CD

REF

31

V

L CD Sense

REF

30

V

D Sense

OUT

29

V

D

OUT

28

V

SS

27

AGND

26

V

CC

25

V

DD

PIN DESCRIPTIONS

PIN NAME DESCRIPTION

1 DB15 Data Bit 15, MSB
2 DB14 Data Bit 14
3 DB13 Data Bit 13
4 DB12 Data Bit 12
5 DB11 Data Bit 11
6 DB10 Data Bit 10
7 DB9 Data Bit 9
8 DB8 Data Bit 8

9 DB7 Data Bit 7
10 DB6 Data Bit 6
11 DB5 Data Bit 5
12 DB4 Data Bit 4
13 DB3 Data Bit 3
14 DB2 Data Bit 2
15 DB1 Data Bit 1
16 DB0 Data Bit 0, LSB
17 RSTSEL Reset Select. Determines the action of RST. If

18 RST Reset, Edge-Triggered. Depending on the state

19 LOADDACs DAC Output Registers Load Control. Rising edge

20 R/W Enabled by the CS, controls data read and write

21 A1 Enabled by the CS, in combination with A0

22 A0 Enabled by the CS, in combination with A1

23 CS Chip Select, Active LOW.
24 DGND Digital Ground
25 V
26 V

DD
CC

27 AGND Analog Ground
28 V
29 V
30 V

31 V
32 V
33 V
34 V
35 V
36 V

37 V
38 V

39 V
40 V
41 V
42 V
43 V
44 V

SS

OUT

D Sense DAC D’s Output Amplifier Inverting Input. Used

OUT

L CD Sense DAC C and D Reference Low Sense Input

REF

L CD DAC C and D Reference Low Input

REF

H CD DAC C and D Reference High Input

REF

H CD Sense DAC C and D Reference High Sense Input

REF

OUT

C Sense DAC C’s Output Amplifier Inverting Input. Used

OUT

OUT

B Sense DAC B’s Output Amplifier Inverting Input. Used

OUT

H AB Sense DAC A and B Reference High Sense Input

REF

H AB DAC A and B Reference High Input

REF

L AB DAC A and B Reference Low Input

REF

L AB Sense DAC A and B Reference Low Sense Input

REF

OUT

A Sense DAC A’s Output Amplifier Inverting Input. Used

OUT

45 NC No Connection
46 NC No Connection
47 NC No Connection
48 NC No Connection

HIGH, a RST command will set the DAC regis­ters to mid-scale. If LOW, a RST command will
set the DAC registers to zero.

of RSTSEL, the DAC Input and Output registers
are set to either mid-scale or zero.

triggered.

from the input register.

selects the Individual DAC Input Registers.

selects the individual DAC input registers.

Positive Power Supply
Positive Power Supply

Negative Power Supply

D DAC D Voltage Output

to close the feedback loop at the load.

C DAC C Voltage Output

to close the feedback loop at the load.

B DAC B Voltage Output

to close the feedback loop at the load.

A DAC A Voltage Input

to close the feedback loop at the load.

®

5

DAC7744

TYPICAL PERFORMANCE CURVES: VSS = 0V

At TA = +25°C, VDD = +5V, VCC = +15V, V

+25°C

DIFFERENTIAL LINEARITY ERROR vs CODE

2.0

1.5

1.0

0.5
0

–0.5

LE (LSB)DLE (LSB)

–1.0
–1.5
–2.0

2.0

1.5

1.0

0.5
0

–0.5
–1.0
–1.5
–2.0

0000H2000H4000H6000H8000

LINEARITY ERROR AND

(DAC A, +25°C)

Digital Input Code

SS

H

= 0, V

REFH

C000HE000HFFFF

A000

H

= +10V, and V

= 0V, representative unit, unless otherwise specified.

REFL

DIFFERENTIAL LINEARITY ERROR vs CODE

2.0

1.5

1.0

0.5
0

–0.5

LE (LSB)DLE (LSB)

–1.0
–1.5
–2.0

2.0

1.5

1.0

0.5
0

–0.5
–1.0
–1.5
–2.0

H

0000H2000H4000H6000H8000

LINEARITY ERROR AND

(DAC B, +25°C)

A000

H

H

Digital Input Code

C000HE000HFFFF

H

2.0

1.5

1.0

0.5

–0.5

LE (LSB)DLE (LSB)

–1.0
–1.5
–2.0

2.0

1.5

1.0

0.5

–0.5
–1.0
–1.5
–2.0

+85°C

2.0

1.5

1.0

0.5

–0.5

LE (LSB)DLE (LSB)

–1.0
–1.5
–2.0

2.0

1.5

1.0

0.5

–0.5
–1.0
–1.5
–2.0

DIFFERENTIAL LINEARITY ERROR vs CODE

LINEARITY ERROR AND

(DAC C, +25°C)

0

0

0000H2000H4000H6000H8000

Digital Input Code

LINEARITY ERROR AND

DIFFERENTIAL LINEARITY ERROR vs CODE

(DAC A, +85°C)

0

0

0000H2000H4000H6000H8000

Digital Input Code

DIFFERENTIAL LINEARITY ERROR vs CODE

LINEARITY ERROR AND

(DAC D, +25°C)

2.0

1.5

1.0

0.5

0

–0.5

LE (LSB)DLE (LSB)

–1.0
–1.5
–2.0

2.0

1.5

1.0

0.5

0
–0.5
–1.0
–1.5
–2.0

C000HE000HFFFF

A000

H

H

H

0000H2000H4000H6000H8000

H

C000HE000HFFFF

A000

H

H

Digital Input Code

LINEARITY ERROR AND

DIFFERENTIAL LINEARITY ERROR vs CODE

(DAC B, +85°C)

2.0

1.5

1.0

0.5
0

–0.5

LE (LSB)DLE (LSB)

–1.0
–1.5
–2.0

2.0

1.5

1.0

0.5
0

–0.5
–1.0
–1.5

C000HE000HFFFF

A000

H

H

H

–2.0

0000H2000H4000H6000H8000

C000HE000HFFFF

A000

H

H

H

Digital Input Code

®

DAC7744

6

TYPICAL PERFORMANCE CURVES: VSS = 0V (Cont.)

2.0

1.5

1.0

0.5
0

–0.5
–1.0
–1.5
–2.0

2.0

1.5

1.0

0.5
0

–0.5
–1.0
–1.5
–2.0

LE (LSB)DLE (LSB)

LINEARITY ERROR AND

DIFFERENTIAL LINEARITY ERROR vs CODE

(DAC D, +85°C)

0000H2000H4000H6000H8000

H

Digital Input Code

A000

H

C000HE000HFFFF

H

At TA = +25°C, VDD = +5V, VCC = +15V, V

+85°C (cont.)

DIFFERENTIAL LINEARITY ERROR vs CODE

2.0

1.5

1.0

0.5
0

–0.5

LE (LSB)DLE (LSB)

–1.0
–1.5
–2.0

2.0

1.5

1.0

0.5
0

–0.5
–1.0
–1.5
–2.0

0000H2000H4000H6000H8000

LINEARITY ERROR AND

(DAC C, +85°C)

Digital Input Code

–40°C

DIFFERENTIAL LINEARITY ERROR vs CODE

2.0

1.5

1.0

0.5
0

–0.5

LE (LSB)DLE (LSB)

–1.0
–1.5
–2.0

2.0

1.5

1.0

0.5
0

–0.5
–1.0
–1.5
–2.0

0000H2000H4000H6000H8000

LINEARITY ERROR AND

(DAC A, –40°C)

Digital Input Code

SS

H

= 0, V

H

= +10V, and V

REFH

C000HE000HFFFF

A000

H

C000HE000HFFFF

A000

H

= 0V, representative unit, unless otherwise specified.

REFL

H

LINEARITY ERROR AND

DIFFERENTIAL LINEARITY ERROR vs CODE

2.0

1.5

1.0

0.5
0

–0.5

LE (LSB)DLE (LSB)

–1.0
–1.5
–2.0

2.0

1.5

1.0

0.5
0

–0.5
–1.0
–1.5
–2.0

H

0000H2000H4000H6000H8000

(DAC B, –40°C)

Digital Input Code

C000HE000HFFFF

A000

H

H

H

LE (LSB)DLE (LSB)

DIFFERENTIAL LINEARITY ERROR vs CODE

LINEARITY ERROR AND

(DAC C, –40°C)

2.0

1.5

1.0

0.5
0

–0.5
–1.0
–1.5
–2.0

2.0

1.5

1.0

0.5
0

–0.5
–1.0
–1.5
–2.0

0000H2000H4000H6000H8000

Digital Input Code

A000HC000HE000HFFFF

H

DIFFERENTIAL LINEARITY ERROR vs CODE

LINEARITY ERROR AND

(DAC D, –40°C)

2.0

1.5

1.0

0.5
0

–0.5

LE (LSB)DLE (LSB)

–1.0
–1.5
–2.0

2.0

1.5

1.0

0.5
0

–0.5
–1.0
–1.5
–2.0

H

0000H2000H4000H6000H8000

H

C000HE000HFFFF

A000

H

H

Digital Input Code

®

7

DAC7744

TYPICAL PERFORMANCE CURVES: VSS = 0V (Cont.)

At TA = +25°C, VDD = +5V, VCC = +15V, V

SS

= 0, V

= +10V, and V

REFH

= 0V, representative unit, unless otherwise specified.

REFL

2

ZERO-SCALE ERROR vs TEMPERATURE

Code (0040H)Code (0021H)

1.5
DAC B

1

0.5

0

–0.5

–1

Zero-Scale Error (mV)

DAC A

–1.5

–2

–40 –30 –10 0–20 10 20 40 5030 70 80 9060

Temperature (°C)

CURRENT vs CODE

All DACs Sent to Indicated Code

(DAC A and B)

V

V

REFH

REFL

1.0

0.8

0.6

0.4

0.2

Current (mA)V

0

–0.2

REF

V

–0.4

0
–0.2
–0.4
–0.6
–0.8

Current (mA)

–1.0

REF

–1.2
–1.4

0000H2000H4000H6000H8000

Digital Input Code

H

DAC D

DAC C

C000HE000HFFFF

A000

H

2

Code (FFFFH)

1.5

DAC B

DAC D

1

0.5
0

FULL-SCALE ERROR vs TEMPERATURE

–0.5

DAC A

DAC C

–1

Positive Full-Scale Error (mV)

–1.5

–2

–40 –30 –10 0–20 10 20 40 5030 70 80 9060

Temperature (°C)

CURRENT vs CODE

All DACS Sent to Indicated Code

(DAC C and D)

V

V

REFH

REFL

A000

H

C000HE000HFFFF

H

H

1.0

0.8

0.6

0.4

0.2

Current (mA)V

0

–0.2

REF

V

–0.4

0

–0.2
–0.4
–0.6
–0.8

Current (mA)

–1.0

REF

–1.2
–1.4

H

0000H2000H4000H6000H8000

Digital Input Code

4.0

POWER SUPPLY CURRENT vs TEMPERATURE

Data = FFFFH (all DACs)

3.5

No Load

I

CC

3.0

2.5

2.0

1.5

1.0

0.5

Quiescent Current (mA)

0

–0.5

–40 –30 –10 0–20 10 20 40 5030 70 80 9060

Temperature (°C)

®

DAC7744

POSITIVE SUPPLY CURRENT

vs DIGITAL INPUT CODE

4.0

No Load

3.5

3.0

2.5

2.0

(mA)

CC

I

1.5

1.0

I

DD

0.5
0

0 2000H4000H6000H8000HA000HC000HE000HFFFF

H

Digital Input Code

8