LTC2753 DACs Datasheet

LTC2753 Datasheet, PDF, Equivalent


Part Number

LTC2753

Description

Dual Current Output 12-/14-/16-Bit SoftSpan DACs

Manufacture

Linear Technology

Total Page 24 Pages
Datasheet
Download LTC2753 Datasheet


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
2753f
1

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/
2753f
2


Features LTC2753 Dual Current Output 12-/14-/16-B it SoftSpan DACs with Parallel I/O FEAT URES Six Programmable Output Ranges Uni polar: 0V to 5V, 0V to 10V Bipolar: ±5 V, ±10V, ±2.5V, –2.5V to 7.5V ■ M aximum 16-Bit INL Error: ±1 LSB over T emperature www.DataSheet4U.com ■ Low 1μA (Maximum) Supply Current ■ Guara nteed Monotonic over Temperature ■ Lo w Glitch Impulse 1nV•s ■ 2.7V to 5. 5V Single Supply Operation ■ 2μs Set tling Time to ±1 LSB ■ Parallel Inte rface with Readback of All Registers Asynchronous CLR Pin Clears DAC Outpu ts to 0V in Any Output Range ■ Power- On Reset to 0V ■ 48-Pin 7mm × 7mm QF N Package ■ DESCRIPTION The LTC®275 3 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 perfor mance (±1LSB INL and DNL) over tempera ture without any adjustments. These SoftSpan™ DACs offer six output ranges—two unipolar and four bi.
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