SoftSpan DACs. LTC2753 Datasheet

LTC2753 DACs. Datasheet pdf. Equivalent


Linear Technology LTC2753
LTC2753
Dual Current Output
12-/14-/16-Bit SoftSpan
DACs with Parallel I/O
FEATURES
Six Programmable Output Ranges
Unipolar: 0V to 5V, 0V to 10V
Bipolar: ±5V, ±10V, ±2.5V, –2.5V to 7.5V
www.DataSheetM4Ua.cxoimmum 16-Bit INL Error: ±1 LSB over Temperature
Low 1μA (Maximum) Supply Current
Guaranteed Monotonic over Temperature
Low Glitch Impulse 1nV•s
2.7V to 5.5V Single Supply Operation
2μs Settling Time to ±1 LSB
Parallel Interface with Readback of All Registers
Asynchronous CLR Pin Clears DAC Outputs to 0V in
Any Output Range
Power-On Reset to 0V
48-Pin 7mm × 7mm QFN Package
APPLICATIONS
High Resolution Offset and Gain Adjustment
Process Control and Industrial Automation
Automatic Test Equipment
Data Acquisition Systems
DESCRIPTION
The LTC®2753 is a family of dual 12-, 14-, and 16-bit
multiplying parallel-input, current-output DACs. These
DACs operate from a single 2.7V to 5.5V supply and are all
guaranteed monotonic over temperature. The LTC2753A-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.
The LTC2753 DACs use a bidirectional input/output parallel
interface that allows readback of any on-chip register. A
power-on reset circuit resets the DAC outputs to 0V when
power is initially applied. A logic low on the CLR pin asyn-
chronously clears the DACs to 0V in any output range.
The parts are specified over commercial and industrial
temperature ranges.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
TYPICAL APPLICATION
Dual 16-Bit VOUT DAC with Software-Selectable Ranges
VREF
5V
ROFSA 47
RIN 2
LTC2753-16
46 RFBA
+
1/2 LT1469
150pF
RCOM 1
R1
REFA 48
R2
DAC A
15pF
45 IOUT1A
4 IOUT2A
44 RVOSA
1/2 LT1469
+
VOUTA
REFB 39
43 RVOSB
32 IOUT2B
+
DAC B
ROFSB 40
SPAN I/O
3
16
DATA I/O
I/O PORT
I/O PORT
42 IOUT1B
15pF
41 RFBB
1/2 LT1469
VOUTB
2753 TA01
LTC2753-16 Integral Nonlinearity (INL)
1.0
VDD = 5V
0.8 VREF = 5V
0.6 ±10V RANGE
0.4
0.2
0.0
–0.2
–0.4
–0.6
–0.8
–1.0
0
16384
32768
CODE
25°C
90°C
–45°C
49152 65535
2753 TA01b
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LTC2753 Datasheet
Recommendation LTC2753 Datasheet
Part LTC2753
Description Dual Current Output 12-/14-/16-Bit SoftSpan DACs
Feature LTC2753; LTC2753 Dual Current Output 12-/14-/16-Bit SoftSpan DACs with Parallel I/O FEATURES Six Programmable.
Manufacture Linear Technology
Datasheet
Download LTC2753 Datasheet




Linear Technology LTC2753
LTC2753
ABSOLUTE MAXIMUM RATINGS (Notes 1, 2)
IOUT1X, IOUT2X, RCOM to GND .................................±0.3V
RVOSX, RFBX, ROFSX, RIN, REFX to GND ...................±15V
VDD to GND .................................................. –0.3V to 7V
Digital Inputs and Digital I/O
to GND ..........................–0.3V to VDD+0.3V (max 7V)
Operating Temperature Range
LTC2753C..................................................... 0°C to 70°C
LTC2753I.................................................. –40°C to 85°C
Maximum Junction Temperature........................... 125°C
Storage Temperature Range................... –65°C to 150°C
PIN CONFIGURATION
www.DataSheet4U.com
48 47 46 45 44 43 42 41 40 39 38 37
RCOM
RIN
S2
1
2
3
36 UPD
35 READ
34 D/S
IOUT2A 4
33 S0
GND 5
D11 6
D10 7
32 IOUT2B
49 31 GND
30 NC
D9 8
29 NC
D8 9
28 NC
D7 10
27 NC
D6 11
26 NC
D5 12
25 NC
13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37
RCOM
RIN
S2
1
2
3
36 UPD
35 READ
34 D/S
IOUT2A 4
33 S0
GND 5
32 IOUT2B
D13 6
D12 7
49 31 GND
30 NC
D11 8
29 NC
D10 9
28 NC
D9 10
27 NC
D8 11
26 D0
D7 12
25 D1
13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37
RCOM 1
36 UPD
RIN 2
S2 3
35 READ
34 D/S
IOUT2A 4
33 S0
GND 5
D15 6
D14 7
32 IOUT2B
49 31 GND
30 NC
D13 8
29 NC
D12 9
28 D0
D11 10
27 D1
D10 11
26 D2
D9 12
25 D3
13 14 15 16 17 18 19 20 21 22 23 24
LTC2753-12 UK PACKAGE
48-LEAD (7mm × 7mm) PLASTIC QFN
TJMAX = 125°C, θJA = 29°C/W
EXPOSED PAD (PIN 49) IS GND, MUST BE SOLDERED TO PCB
LTC2753-14 UK PACKAGE
48-LEAD (7mm × 7mm) PLASTIC QFN
TJMAX = 125°C, θJA = 29°C/W
EXPOSED PAD (PIN 49) IS GND, MUST BE SOLDERED TO PCB
LTC2753-16 UK PACKAGE
48-LEAD (7mm × 7mm) PLASTIC QFN
TJMAX = 125°C, θJA = 29°C/W
EXPOSED PAD (PIN 49) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2753CUK-12#PBF LTC2753CUK-12#TRPBF
LTC2753UK-12
48-Lead (7mm × 7mm) Plastic QFN 0°C to 70°C
LTC2753IUK-12#PBF LTC2753IUK-12#TRPBF
LTC2753UK-12
48-Lead (7mm × 7mm) Plastic QFN –40°C to 85°C
LTC2753CUK-14#PBF LTC2753CUK-14#TRPBF
LTC2753UK-14
48-Lead (7mm × 7mm) Plastic QFN 0°C to 70°C
LTC2753IUK-14#PBF LTC2753IUK-14#TRPBF
LTC2753UK-14
48-Lead (7mm × 7mm) Plastic QFN –40°C to 85°C
LTC2753BCUK-16#PBF LTC2753BCUK-16#TRPBF LTC2753UK-16
48-Lead (7mm × 7mm) Plastic QFN 0°C to 70°C
LTC2753BIUK-16#PBF LTC2753BIUK-16#TRPBF LTC2753UK-16
48-Lead (7mm × 7mm) Plastic QFN –40°C to 85°C
LTC2753ACUK-16#PBF LTC2753ACUK-16#TRPBF LTC2753UK-16
48-Lead (7mm × 7mm) Plastic QFN 0°C to 70°C
LTC2753AIUK-16#PBF LTC2753AIUK-16#TRPBF LTC2753UK-16
48-Lead (7mm × 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/
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Linear Technology LTC2753
LTC2753
ELECTRICAL CHARACTERISTICS VDD = 5V, VREF = 5V unless otherwise specified. The denotes the
specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
LTC2753-12
LTC2753-14
LTC2753B-16
LTC2753A-16
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
Static Performance
Resolution
12 14 16 16
Bits
Monotonicity
12 14 16 16
Bits
DNL Differential
Nonlinearity
±1
±1
±1
±0.2 ±1
LSB
INL Integral
www.DataSheet4U.comNonlinearity
±1
±1
±2
±0.4 ±1
LSB
GE Gain Error
All Output ±0.5 ±2
Ranges
±1.5 ±5
±20 ±4 ±14 LSB
GETC Gain Error Temp- ΔGain/ΔTemp
erature Coefficient
±0.6
±0.6 ±0.6 ±0.6 ppm/°C
BZE Bipolar Zero Error All Bipolar
Ranges
±0.2 ±1
±0.6 ±3
±12
±2 ±8
LSB
BZSTC Bipolar Zero Temp-
erature Coefficient
±0.5 ±0.5 ±0.5 ±0.5 ppm/°C
PSR
ILKG
CIOUT1
Power Supply
Rejection
IOUT1 Leakage
Current
Output
Capacitance
VDD = 5V, ±10%
VDD = 3V, ±10%
TA = 25°C
TMIN to TMAX
Full-Scale
Zero Scale
±0.025
±0.06
±0.05 ±2
±5
75
45
±0.1
±0.25
±0.05 ±2
±5
75
45
±0.4
±1
±0.05 ±2
±5
75
45
±0.03 ±0.2
±0.1 ±0.5
±0.05 ±2
±5
75
45
LSB/V
nA
pF
pF
VDD = 5V, VREF = 5V unless otherwise specified. The denotes specifications that apply over the full operating temperature range,
otherwise specifications are at TA = 25°C.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Resistances (Note 3)
R1, R2
Reference Inverting Resistors
(Note 4)
16
20
RREF DAC Input Resistance
RFB Feedback Resistor
(Note 3)
ROFS Bipolar Offset Resistor (Note 3)
RVOS Offset Adjust Resistor
8
8
16
800
10
10
20
1000
Dynamic Performance
Output Settling Time
0V to 10V Range, 10V Step. To ±0.0015% FS
2
μs
(Note 5)
Glitch Impulse
(Note 6)
1 nV•s
Digital-to-Analog Glitch Impulse
(Note 7)
1 nV•s
Multiplying Feedthrough Error
0V to 10V Range, VREF = ±10V, 10kHz
Sine Wave
0.5 mV
THD
Total Harmonic Distortion
(Note 8) Multiplying
–110 dB
Output Noise Voltage Density
(Note 9) at IOUT1
13 nV/√H⎯ ⎯z
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