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LTC2751CUHF-12#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
LTC2751
1
2751fa
C2
150pF
+
–
1/2 LT
®
1469
–
+
1/2 LT1469
16-BIT DAC WITH SPAN SELECT
LTC2751-16
R
VOS
R
COM
R
IN
R2R1
R
OFS
REF
5V
5V
REF
R
FB
I
OUT1
V
OUT
I
OUT2
GND
WR
UPD
READ
D/S
CLR
MSPAN
SPAN I/O
S2-S0
C1
15pF
V
DD
2751 TA01
WR
UPD
READ
D/S
CLR
C3
0.1µF
3
DATA I/O
D15-D0
16
Typical applicaTion
FeaTures
applicaTions
DescripTion
Current Output
12-/14-/16-Bit SoftSpan
DACs with Parallel I/O
The LTC
®
2751 is a family of 12-, 14-, and 16-bit multi-
plying parallel-input, current-output DACs. They operate
from a single 2.7V to 5.5V supply. All parts are guaranteed
monotonic over temperature. The LTC2751A-16 provides
16-bit performance (±1LSB INL and DNL) over temperature
without any adjustments. These SoftSpan™ DACs offer six
output ranges—two unipolar and four bipolar—that can be
programmed through the parallel interface, or pinstrapped
for operation in a single range.
These parts use a bidirectional input/output parallel in-
terface that allows readback of any on-chip register. A
power-on circuit resets the DAC output to 0V when power is
initially applied. A logic low on the CLR pin asynchronously
clears the DAC to 0V in any output range.
The parts are specified over commercial and industrial
temperature ranges.
L, LT, LTC, LTM , Linear Technology and the Linear logo are registered trademarks and
SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners.
16-Bit DAC with Software Selectable Ranges
n
Six Programmable Output Ranges
Unipolar: 0V to 5V, 0V to 10V
Bipolar: ±5V, ±10V, ±2.5V, –2.5V to 7.5V
n
Maximum 16-Bit INL Error: ±1 LSB over Temperature
n
Low 1µA (Maximum) Supply Current
n
Guaranteed Monotonic over Temperature
n
Low Glitch Impulse 1nV • s
n
2.7V to 5.5V Single Supply Operation
n
2µs Settling Time to ±1 LSB
n
Reference Input: ±15V
n
Parallel Interface with Readback of All Registers
n
Asynchronous CLR Pin Clears DAC Output to 0V in
Any Output Range
n
Power-On Reset to 0V
n
38-Pin 5mm × 7mm QFN Package
n
High Resolution Offset and Gain Adjustment
n
Process Control and Industrial Automation
n
Automatic Test Equipment
n
Data Acquisition Systems
LTC2751-16 Integral Nonlinearity
CODE
0
–1.0
INL (LSB)
–0.8
–0.4
–0.2
0.0
1.0
0.4
16384
32768
–0.6
0.6
0.8
0.2
49152
65535
2751 TA01b
25°C
90°C
–45°C
V
DD
= 5V
V
REF
= 5V
±10V RANGE
LTC2751
2
2751fa
13 14 15 16
TOP VIEW
39
LTC2751-12 UHF PACKAGE
38-LEAD (5mm × 7mm) PLASTIC QFN
17 18 19
38 37 36 35 34 33 32
24
25
26
27
28
29
30
31
8
7
6
5
4
3
2
1R
COM
R
IN
S2
I
OUT2
NC
D11
D10
D9
D8
D7
D6
D5
WR
UPD
READ
D/S
NC
NC
NC
NC
NC
NC
D0
D1
REF
R
OFS
R
FB
I
OUT1
R
VOS
S1
S0
D4
D3
V
DD
GND
CLR
MSPAN
D2
23
22
21
20
9
10
11
12
T
JMAX
= 125°C, θ
JA
= 34°C/W
EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB
13 14 15 16
TOP VIEW
39
LTC2751-14 UHF PACKAGE
38-LEAD (5mm × 7mm) PLASTIC QFN
17 18 19
38 37 36 35 34 33 32
24
25
26
27
28
29
30
31
8
7
6
5
4
3
2
1R
COM
R
IN
S2
I
OUT2
NC
D13
D12
D11
D10
D9
D8
D7
WR
UPD
READ
D/S
NC
NC
NC
NC
D0
D1
D2
D3
REF
R
OFS
R
FB
I
OUT1
R
VOS
S1
S0
D6
D5
V
DD
GND
CLR
MSPAN
D4
23
22
21
20
9
10
11
12
T
JMAX
= 125°C, θ
JA
= 34°C/W
EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB
13 14 15 16
TOP VIEW
39
LTC2751-16 UHF PACKAGE
38-LEAD (5mm × 7mm) PLASTIC QFN
17 18 19
38 37 36 35 34 33 32
24
25
26
27
28
29
30
31
8
7
6
5
4
3
2
1R
COM
R
IN
S2
I
OUT2
NC
D15
D14
D13
D12
D11
D10
D9
WR
UPD
READ
D/S
NC
NC
D0
D1
D2
D3
D4
D5
REF
R
OFS
R
FB
I
OUT1
R
VOS
S1
S0
D8
D7
V
DD
GND
CLR
MSPAN
D6
23
22
21
20
9
10
11
12
T
JMAX
= 125°C, θ
JA
= 34°C/W
EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB
absoluTe MaxiMuM raTings
I
OUT1
, I
OUT2
, R
COM
to GND .....................................±0.3V
R
FB
, R
OFS
, R
IN
, REF, R
VOS
to GND ........................... ±15V
V
DD
to GND .................................................. –0.3V to 7V
S2, S1, S0, D15-D0, MSPAN, READ, D/S,WR,
UPD, CLR to GND ........ –0.3V to V
DD
+ 0.3V (7V Max)
(Notes 1, 2)
pin conFiguraTion
orDer inForMaTion
Operating Temperature Range
LTC2751C ..................................................... 0°C to 70°C
LTC2751I .................................................. –40°C to 85°C
Maximum Junction Temperature .......................... 125°C
Storage Temperature Range ..................–65°C to 150°C
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2751CUHF-12#PBF LTC2751CUHF-12#TRPBF 275112
38-Lead (5mm × 7mm) Plastic QFN
0°C to 70°C
LTC2751IUHF-12#PBF LTC2751IUHF-12#TRPBF 275112
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 85°C
LTC2751CUHF-14#PBF LTC2751CUHF-14#TRPBF 275114
38-Lead (5mm × 7mm) Plastic QFN
0°C to 70°C
LTC2751IUHF-14#PBF LTC2751IUHF-14#TRPBF 275114
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 85°C
LTC2751BCUHF-16#PBF LTC2751BCUHF-16#TRPBF 275116
38-Lead (5mm × 7mm) Plastic QFN
0°C to 70°C
LTC2751BIUHF-16#PBF LTC2751BIUHF-16#TRPBF 275116
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 85°C
LTC2751ACUHF-16#PBF LTC2751ACUHF-16#TRPBF 275116
38-Lead (5mm × 7mm) Plastic QFN
0°C to 70°C
LTC2751AIUHF-16#PBF LTC2751AIUHF-16#TRPBF 275116
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
LTC2751
3
2751fa
elecTrical characTerisTics
V
DD
= 5V, V
REF
= 5V unless otherwise specified. The l denotes the
specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
SYMBOL PARAMETER CONDITIONS
LTC2751-12 LTC2751-14 LTC2751B-16 LTC2751A-16
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX
Static Performance
Resolution
l
12 14 16 16 Bits
Monotonicity
l
12 14 16 16 Bits
DNL Differential
Nonlinearity
l
±1 ±1 ±1 ±0.2 ±1 LSB
INL Integral
Nonlinearity
l
±1 ±1 ±2 ±0.4 ±1 LSB
GE Gain Error All Output
Ranges
l
±0.5 ±2 ±1.5 ±5 ±20 ±4 ±14 LSB
GE
TC
Gain Error Temp-
erature Coefficient
DGain/DTemp
±0.6 ±0.6 ±0.6 ±0.6 ppm/°C
BZE Bipolar Zero Error All Bipolar
Ranges
l
±0.2 ±1 ±0.6 ±3 ±12 ±2 ±8 LSB
BZS
TC
Bipolar Zero Temp-
erature Coefficient
±0.5 ±0.5 ±0.5 ±0.5 ppm/°C
PSR Power Supply
Rejection
V
DD
= 5V, ±10%
V
DD
= 3V, ±10%
l
l
±0.025
±0.06
±0.1
±0.25
±0.4
±1
±0.03
±0.1
±0.2
±0.5
LSB/V
I
LKG
I
OUT1
Leakage
Current
T
A
= 25°C
T
MIN
to T
MAX
l
±0.05
±2
±5
±0.05 ±2
±5
±0.05 ±2
±5
±0.05 ±2
±5
nA
C
IOUT1
Output
Capacitance
Full-Scale
Zero Scale
75
45
75
45
75
45
75
45
pF
pF
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Resistances (Note 3)
R1/R2 Reference Inverting Resistors (Note 4)
l
16 20
kW
R
REF
DAC Input Resistance
l
8 10
kW
R
FB
Feedback Resistor (Note 3)
l
8 10
kW
R
OFS
Bipolar Offset Resistor (Note 3)
l
16 20
kW
R
VOS
Offset Adjust Resistor
l
800 1000
kW
Dynamic Performance
Output Settling Time 0V to 10V Range, 10V Step. To ±0.0015% FS
(Note 5)
2 μs
Glitch Impulse (Note 6) 1 nV• s
Digital-to-Analog Glitch Impulse (Note 7) 1 nV•s
Multiplying Feedthrough Error 0V to 10V Range, V
REF
= ±10V, 10kHz
Sine Wave
0.5 mV
THD Total Harmonic Distortion (Note 8) Multiplying –110 dB
Output Noise Voltage Density (Note 9) at I
OUT1
13 nV/√Hz
Power Supply
V
DD
Supply Voltage
l
2.7 5.5 V
I
DD
Supply Current, V
DD
Digital Inputs = 0V or V
DD
l
0.5 1 μA
V
DD
= 5V, V
REF
= 5V unless otherwise specified. The l denotes specifications that apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C.
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LTC2751CUHF-12#TRPBF

Mfr. #:
Buy LTC2751CUHF-12#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Digital to Analog Converters - DAC 12-Bit Softspan Iout DAC with Parallel I/O
Lifecycle:
New from this manufacturer.
Delivery:
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