FeaTures
n
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LTC1591/LTC1597
14-Bit and 16-Bit Parallel
Low Glitch Multiplying DACs
with 4-Quadrant Resistors
DescripTion
The
LTC
®
1591/LTC1597
are pin compatible, parallel
input 14-bit and 16-bit multiplying current output DACs
that operate from a single 5V supply. INL and DNL are
accurate to 1LSB over the industrial temperature range
in both 2- and 4-quadrant multiplying modes. True 16-
bit 4-quadrant multiplication is achieved with on-chip
4-quadrant multiplication resistors.
These DACs include an internal deglitcher circuit that
reduces the glitch impulse to less than 2nV-s (typ). The
asynchronous
CLR
pin resets the LTC1591/LTC1597 to
zero scale and LTC1591-1/LTC1597-1 to mid-scale.
The LTC1591/LTC1597 are available in the 28-pin SSOP
package and are specified over the industrial temperature
range.
For serial interface 16-bit current output DACs refer to the
LTC1595/LTC1596 data sheet.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
n
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True 16-Bit Performance Over Industrial
Temperature Range
DNL and INL: 1LSB Max
On-Chip 4-Quadrant Resistors Allow Precise 0V to
10V, 0V to –10V or ±10V Outputs
Pin Compatible 14- and 16-Bit Parts
Asynchronous Clear Pin
n
LTC1591/LTC1597: Reset to Zero Scale
n
LTC1591-1/LTC1597-1: Reset to Mid-Scale
Glitch Impulse < 2nV-s
Low Power Consumption: 10µW Typ
Power-On Reset
28-Lead SSOP Package
applicaTions
n
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Process Control and Industrial Automation
Direct Digital Waveform Generation
Software-Controlled Gain Adjustment
Automatic Test Equipment
Typical applicaTion
16-Bit, 4-Quadrant Multiplying DAC with a
Minimum of External Components
V
REF
5V
0.1µF
LTC1591/LTC1591-1 Integral Nonlinearity
1.0
0.8
INTEGRAL NONLINEARITY (LSB)
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
V
REF
= 10V
V
OUT
= ±10V BIPOLAR
3
R1
R1
16
DATA
INPUTS
10 TO 21,
24 TO 27
2
R
COM
R2
INTEGRAL NONLINEARITY (LSB)
LTC1597-1
16-BIT DAC
DGND
WR
LD
CLR
22
WR
LD
CLR
9
8
28
For more information
www.linear.com/LTC1591
+
AGND
7
–
+
LT
®
1468
–
15pF
1
REF
23 4
V
CC
R
OFS
R
OFS
R
FB
5
R
FB
15pF
I
OUT1
–1.0
0
12288
8192
4096
DIGITAL INPUT CODE
16383
1591/97 TA02
LTC1597/LTC1597-1 Integral Nonlinearity
1.0
0.8
V
OUT
=
–V
REF
TO V
REF
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
49152
32768
16384
DIGITAL INPUT CODE
65535
1591/97 TA03
6
V
REF
= 10V
V
OUT
= ±10V BIPOLAR
LT1468
1591/97 TA01
15917fb
1
LTC1591/LTC1597
absoluTe MaxiMuM raTings
(Note 1)
V
CC
to AGND ................................................– 0.5V to 7V
V
CC
to DGND .............................................. – 0.5V to 7V
AGND to DGND ............................................ V
CC
+ 0.5V
DGND to AGND ............................................ V
CC
+ 0.5V
REF R
OFS
, R
FB
, R1, R
COM
to AGND, DGND ........... ±25V
,
Digital Inputs to DGND ................ –0.5V to (V
CC
+ 0.5V)
I
OUT1
to AGND ............................. –0.5V to( V
CC
+ 0.5V)
Maximum Junction Temperature .......................... 125°C
Operating Temperature Range
LTC1591C/LTC1591-1C
LTC1597C/LTC1597-1C .......................... 0°C to 70°C
LTC1591I/LTC1591-1I
LTC1597I/LTC1597-1I ........................ – 40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................ 300°C
pin conFiguraTion
LTC1591
REF
R
COM
R1
R
OFS
R
FB
I
OUT1
AGND
LD
WR
1
2
3
4
5
6
7
8
9
TOP VIEW
28
CLR
27 NC
26 NC
25 D0
24 D1
23 V
CC
22 DGND
21 D2
20 D3
19 D4
18 D5
17 D6
16 D7
15 D8
G PACKAGE
28-LEAD PLASTIC SSOP
LTC1591
REF
R
COM
R1
R
OFS
R
FB
I
OUT1
AGND
LD
WR
1
2
3
4
5
6
7
8
9
TOP VIEW
28
CLR
27 NC
26 NC
25 D0
24 D1
23 V
CC
22 DGND
21 D2
20 D3
19 D4
18 D5
17 D6
16 D7
15 D8
N PACKAGE
28-LEAD NARROW PDIP
D13 10
D12 11
D11 12
D10 13
D9 14
D13 10
D12 11
D11 12
D10 13
D9 14
T
JMAX
= 125°C,
θ
JA
= 95°C/ W
T
JMAX
= 125°C,
θ
JA
= 70°C/W
OBSOLETE PACKAGE
LTC1597
TOP VIEW
REF
R
COM
R1
R
OFS
R
FB
I
OUT1
AGND
LD
WR
1
2
3
4
5
6
7
8
9
28
CLR
27 D0
26 D1
25 D2
24 D3
23 V
CC
22 DGND
21 D4
20 D5
19 D6
18 D7
17 D8
16 D9
15 D10
G PACKAGE
28-LEAD PLASTIC SSOP
REF
R
COM
R1
R
OFS
R
FB
I
OUT1
AGND
LD
WR
1
2
3
4
5
6
7
8
9
LTC1597
TOP VIEW
28
CLR
27 D0
26 D1
25 D2
24 D3
23 V
CC
22 DGND
21 D4
20 D5
19 D6
18 D7
17 D8
16 D9
15 D10
N PACKAGE
28-LEAD NARROW PDIP
D15 10
D14 11
D13 12
D12 13
D11 14
D15 10
D14 11
D13 12
D12 13
D11 14
T
JMAX
= 125°C,
θ
JA
= 95°C/ W
T
JMAX
= 125°C,
θ
JA
= 70°C/W
OBSOLETE PACKAGE
2
15917fb
For more information
www.linear.com/LTC1591
LTC1591/LTC1597
orDer inForMaTion
LEAD FREE FINISH
LTC1591CG#PBF
LTC1591-1CG#PBF
LTC1591IG#PBF
LTC1591-1IG#PBF
LTC1597ACG#PBF
LTC1597-1ACG#PBF
LTC1597BCG#PBF
LTC1597-1BCG#PBF
LTC1597AIG#PBF
LTC1597-1AIG#PBF
LTC1597BIG#PBF
LTC1597-1BIG#PBF
LTC1591CN#PBF
LTC1591-1CN#PBF
LTC1591IN#PBF
LTC1591-1IN#PBF
LTC1597ACN#PBF
LTC1597-1ACN#PBF
LTC1597BCN#PBF
LTC1597-1BCN#PBF
LTC1597AIN#PBF
LTC1597-1AIN#PBF
LTC1597BIN#PBF
LTC1597-1BIN#PBF
TAPE AND REEL
LTC1591CG#TRPBF
LTC1591-1CG#TRPBF
LTC1591IG#TRPBF
LTC1591-1IG#TRPBF
LTC1597ACG#TRPBF
LTC1597-1ACG#TRPBF
LTC1597BCG#TRPBF
LTC1597-1BCG#TRPBF
LTC1597AIG#TRPBF
LTC1597-1AIG#TRPBF
LTC1597BIG#TRPBF
LTC1597-1BIG#TRPBF
LTC1591CN#TRPBF
LTC1591-1CN#TRPBF
LTC1591IN#TRPBF
LTC1591-1IN#TRPBF
LTC1597ACN#TRPBF
LTC1597-1ACN#TRPBF
LTC1597BCN#TRPBF
LTC1597-1BCN#TRPBF
LTC1597AIN#TRPBF
LTC1597-1AIN#TRPBF
LTC1597BIN#TRPBF
LTC1597-1BIN#TRPBF
PART MARKING
LTC1591CG
LTC1591-1CG
LTC1591IG
LTC1591-1IG
LTC1597ACG
LTC1597-1ACG
LTC1597BCG
LTC1597-1BCG
LTC1597AIG
LTC1597-1AIG
LTC1597BIG
LTC1597-1BIG
LTC1591CN
LTC1591-1CN
LTC1591IN
LTC1591-1IN
LTC1597ACN
LTC1597-1ACN
LTC1597BCN
LTC1597-1BCN
LTC1597AIN
LTC1597-1AIN
LTC1597BIN
LTC1597-1BIN
PACKAGE DESCRIPTION
28-Lead Plastic SSOP
28-Lead Plastic SSOP
28-Lead Plastic SSOP
28-Lead Plastic SSOP
28-Lead Plastic SSOP
28-Lead Plastic SSOP
28-Lead Plastic SSOP
28-Lead Plastic SSOP
28-Lead Plastic SSOP
28-Lead Plastic SSOP
28-Lead Plastic SSOP
28-Lead Plastic SSOP
28-Lead Narrow PDIP
28-Lead Narrow PDIP
28-Lead Narrow PDIP
28-Lead Narrow PDIP
28-Lead Narrow PDIP
28-Lead Narrow PDIP
28-Lead Narrow PDIP
28-Lead Narrow PDIP
28-Lead Narrow PDIP
28-Lead Narrow PDIP
28-Lead Narrow PDIP
28-Lead Narrow PDIP
TEMPERATURE RANGE
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
OBSOLETE PACKAGE
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on nonstandard lead based finish parts.
For more information on lead free part markings, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/
15917fb
For more information
www.linear.com/LTC1591
3
LTC1591/LTC1597
elecTrical characTerisTics
V
CC
= 5V ±10%, V
REF
= 10V, I
OUT1
= AGND = DGND = 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
LTC1591/-1
SYMBOL PARAMETER
Accuracy
Resolution
Monotonicity
INL
DNL
GE
Integral Nonlinearity
Differential Nonlinearity
Gain Error
(Note 2) T
A
= 25°C
T
MIN
to T
MAX
T
A
= 25°C
T
MIN
to T
MAX
Unipolar Mode
(Note 3) T
A
= 25°C
T
MIN
to T
MAX
Bipolar Mode
(Note 3) T
A
= 25°C
T
MIN
to T
MAX
Gain Temperature Coefficient
Bipolar Zero-Scale Error
I
LKG
PSRR
OUT1 Leakage Current
Power Supply Rejection Ratio
(Note 4) ∆Gain/∆Temperature
T
A
= 25°C
T
MIN
to T
MAX
(Note 5) T
A
= 25°C
T
MIN
to T
MAX
V
CC
= 5V ±10
l
l
l
l
LTC1597B/-1B
TYP
MAX
LTC1597A/-1A
MIN
16
16
TYP
MAX
UNITS
Bits
Bits
± 0.25
± 0.35
± 0.2
± 0.2
2
3
2
3
1
±1
±1
±1
±1
± 16
± 16
± 16
± 16
2
±5
±8
±5
± 15
± 0.4
±2
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
ppm/°C
LSB
LSB
nA
nA
LSB/V
CONDITIONS
MIN
14
14
TYP
MAX MIN
16
16
±1
±1
±1
±1
±4
±6
±4
±6
±2
±2
±1
±1
± 16
± 24
± 16
± 24
1
2
± 10
± 16
±5
± 15
± 0.4
±2
l
l
l
l
l
l
1
2
±3
±5
±5
± 15
±0.1
±1
V
CC
= 5V ±10%, V
REF
= 10V, I
OUT1
= AGND = DGND = 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
SYMBOL
R
REF
R1/R2
R
OFS
, R
FB
PARAMETER
DAC Input Resistance (Unipolar)
R1/R2 Resistance (Bipolar)
Feedback and Offset Resistances
Output Current Settling Time
Mid-Scale Glitch Impulse
Digital-to-Analog Glitch Impulse
Multiplying Feedthrough Error
THD
Total Harmonic Distortion
Output Noise Voltage Density
Harmonic Distortion
(Digital Waveform Generation)
CONDITIONS
(Note 6)
(Notes 6, 13)
(Note 6)
(Notes 7, 8)
(Note 12)
(Note 9)
V
REF
= ±10V, 10kHz Sine Wave
(Note 10)
(Note 11)
Unipolar Mode (Note 14)
2nd Harmonic
3rd Harmonic
SFDR
Bipolar Mode (Note 14)
2nd Harmonic
3rd Harmonic
SFDR
l
l
l
MIN
4.5
9
9
TYP
6
12
12
1
2
1
1
108
10
94
101
94
94
101
94
MAX
10
20
20
UNITS
kΩ
kΩ
kΩ
µs
nV-s
nV-s
mV
P-P
dB
nV/√Hz
dB
dB
dB
dB
dB
dB
15917fb
Reference Input
AC Performance (Note 4)
4
For more information
www.linear.com/LTC1591
LTC1591/LTC1597
elecTrical characTerisTics
SYMBOL
C
OUT
PARAMETER
Output Capacitance (Note 4)
CONDITIONS
DAC Register Loaded to All 1s: C
OUT1
DAC Register Loaded to All 0s: C
OUT1
l
l
The
●
denotes specifications that apply over the full operating temperature
range. V
CC
= 5V ±10%, V
REF
= 10V, I
OUT1
= AGND = DGND = 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
MIN
TYP
115
70
2.4
0.8
0.001
±1
8
60
0
60
110
60
0
4.5
5
5.5
10
MAX
130
80
UNITS
pF
pF
V
V
µA
pF
ns
ns
ns
ns
ns
ns
V
µA
Analog Outputs (Note 4)
Digital Inputs
V
IH
V
IL
I
IN
C
IN
t
DS
t
DH
t
WR
t
LD
t
CLR
t
LWD
V
DD
I
DD
Digital Input High Voltage
Digital Input low Voltage
Digital Input Current
Digital Input Capacitance
Data to
WR
Setup Time
Data to
WR
Hold Time
WR
Pulse Width
LD Pulse Width
Clear Pulse Width
WR
to LD Delay Time
Supply Voltage
Supply Current
Digital Inputs = 0V or V
CC
(Note 4) V
IN
= 0V
l
l
l
l
Timing Characteristics
l
l
l
l
l
l
Power Supply
l
l
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
±1LSB = ± 0.006% of full scale = ±61ppm of full scale for the
LTC1591/LTC1591-1. ±1LSB = ±0.0015% of full scale = ±15.3ppm of full
scale for the LTC1597/LTC1597-1.
Note 3:
Using internal feedback resistor.
Note 4:
Guaranteed by design, not subject to test.
Note 5:
I
(OUT1)
with DAC register loaded to all 0s.
Note 6:
Typical temperature coefficient is 100ppm/°C.
Note 7:
I
OUT1
load = 100Ω in parallel with 13pF.
Note 8:
To 0.006% for a full-scale change, measured from the rising edge
of LD for the LTC1591/LTC1591-1. To 0.0015% for a full-scale change,
measured from the rising edge of LD for the LTC1597/LTC1597-1.
Note 9:
V
REF
= 0V. DAC register contents changed from all 0s to all 1s or
all 1s to all 0s.
Note 10:
V
REF
= 6V
RMS
at 1kHz. DAC register loaded with all 1s.
Note 11:
Calculation from e
n
= √4kTRB where: k = Boltzmann constant
(J/°K), R = resistance (Ω), T = temperature (°K), B = bandwidth (Hz).
Note 12:
Mid-scale transition code: 01 1111 1111 1111 to 10 0000 0000
0000 for the LTC1591/LTC1591-1 and 0111 1111 1111 1111 to 1000
0000 0000 0000 for the LTC1597/LTC1597-1.
Note 13:
R1 and R2 are measured between R1 and R
COM
, REF and R
COM
.
Note 14:
Measured using the LT1468 op amp in unipolar mode for I/V
converter and LT1468 I/V and LT1001 reference inverter in bipolar mode.
Sample Rate = 50kHz, Signal Frequency = 1kHz, V
REF
= 5V, T
A
= 25°C.
15917fb
For more information
www.linear.com/LTC1591
5
