OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

LTC1657LIGN#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
LTC1657/LTC1657L
1
1657lfa
For more information www.linear.com/LTC1657
BLOCK DIAGRAM
FEATURES DESCRIPTION
Parallel 16-Bit Rail-to-Rail
Micropower DAC
The LT C
®
1657/LTC1657L are complete single supply, rail-
to-rail voltage output, 16-bit digital-to-analog converters
(DAC) in a 28-pin SSOP package. They include a rail-to-rail
output buffer amplifier, an internal reference and a double
buffered parallel digital interface.
The LTC1657/LTC1657L have separate reference input pins
that can be driven by
an external reference. The full-scale
output can be 1 or 2 times the reference voltage depending
on how the X1/X2 pin is connected. The LTC1657 operates
from a 4.5V to 5.5V supply and has an onboard 2.048V
reference. The LTC1657L operates from a 2.7V to 5.5V
supply and has an onboard 1.25V reference.
The LTC1657/LTC1657L are similar to Linear Technology
Corporation’s LTC
1450/LTC1450L 12-bit V
OUT
DAC family,
allowing an upgrade path. They are the only buffered 16-bit
parallel DACs in a 28-lead SSOP package and include an
onboard reference for stand alone performance.
Differential Nonlinearity
vs Input Code
APPLICATIONS
n
16-Bit Monotonic Over Temperature
n
Deglitched Rail-to-Rail Voltage Output: 8nV•s
n
I
CC
: 650µA Typ
n
Maximum DNL Error: ±1LSB
n
Settling Time: 20µs to ±1LSB
n
Built-In Reference: 2.048V (LTC1657)
1.25V (LTC1657L)
n
Internal Power-On Reset to Zero Volts
n
Asynchronous CLR Pin
n
Output Buffer Configurable for Gain of 1 or 2
n
Parallel 16-Bit or 2-Byte Double Buffered Interface
n
Multiplying Capability
n
Narrow 28-Lead SSOP Package
n
Instrumentation
n
Digital Calibration
n
Industrial Process Control
n
Automatic Test Equipment
n
Communication Test Equipment
L, LT , LT C , LT M , Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
REFLOGND
LTC1657: 4.5V TO 5.5V
LTC1657L: 2.7V TO 5.5V
LTC1657:
0V TO 4.096V
LTC1657L:
0V TO 2.5V
16-BIT
DAC
R
R
25
REFHIREFOUT
22 2423
X1/X2
2120 26
1657 TA01
V
OUT
V
CC
D15 (MSB)
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
1
2
28
27
D8
D7
DATA IN FROM
MICROPROCESSOR
DATA BUS
FROM
MICROPROCESSOR
DECODE LOGIC
FROM
SYSTEM RESET
D0 (LSB)
–
+
REFERENCE
LTC1657: 2.048V
LTC1657L: 1.25V
16-BIT
DAC
REGISTER
POWER-ON
RESET
LDAC
CLR
WR
CSMSB
CSLSB
LSB
8-BIT
INPUT
REGISTER
MSB
8-BIT
INPUT
REGISTER
DIGITAL INPUT CODE
0 16384 32768 49152 65535
DIFFERENTIAL NONLINEARITY (LSB)
1657 TA02
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
LTC1657/LTC1657L
2
1657lfa
For more information www.linear.com/LTC1657
PACKAGE/ORDER INFORMATIONABSOLUTE MAXIMUM RATINGS
(Note 1)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
GN PACKAGE
28-LEAD PLASTIC SSOP
OBSOLETE PACKAGE
N PACKAGE
28-LEAD PDIP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
WR
CSLSB
CSMSB
(LSB) D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
LDAC
CLR
X1/X2
V
OUT
V
CC
REFOUT
REFHI
REFLO
GND
D15 (MSB)
D14
D13
D12
D11
T
JMAX
= 125°C, θ
JA
= 95°C/W (GN)
T
JMAX
= 125°C, θ
JA
= 58°C/W (N)
V
CC
to GND ............................................... –0.5V to 7.5 V
TTL Input Voltage, REFHI, REFLO,
X1/X2
....................................................... –0.5V to 7.5 V
V
OUT
, REFOUT ............................. –0.5V to (V
CC
+ 0.5V)
Operating Temperature Range
LTC1657C/LTC1657LC ........................... 0°C to 70°C
LTC1657I/LTC1657LI ......................... –40°C to 85°C
Maximum Junction Temperature
.......................... 125°C
Storage Temperature Range
................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
.................. 300°C
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC1657CGN#PBF LTC1657CGN#TRPBF 1657CGN 28-Lead Plastic SSOP 0°C to 70°C
LTC1657IGN#PBF LTC1657IGN#TRPBF 1657IGN 28-Lead Plastic SSOP –40°C to 85°C
LTC1657LCGN#PBF LTC1657LCGN#TRPBF 1657LCGN 28-Lead Plastic SSOP 0°C to 70°C
LTC1657LIGN#PBF LTC1657LIGN#TRPBF 1657LIGN 28-Lead Plastic SSOP –40°C to 85°C
OBSOLETE PACKAGE
LTC1657CN#PBF LTC1657CN#TRPBF 1657CN 28-Lead
PDIP 0°C to 70°C
LTC1657IN#PBF LTC1657IN#TRPBF 1657IN 28-Lead PDIP –40°C to 85°C
LTC1657LCN#PBF LTC1657LCN#TRPBF 1657LCN 28-Lead PDIP 0°C to 70°C
LTC1657LIN#PBF LTC1657LIN#TRPBF 1657LIN 28-Lead PDIP –40°C to 85°C
Consult LT C Marketing for parts specified with wider operating temperature ranges.
Consult LT C Marketing for information on nonstandard 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/
LTC1657/LTC1657L
3
1657lfa
For more information www.linear.com/LTC1657
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 4.5V to 5.5V (LTC1657), V
CC
= 2.7V to 5.5V (LTC1657L),
V
OUT
unloaded, REFOUT tied to REFHI, REFLO tied to GND, X1/X2 tied to GND, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
DAC (Note 2)
Resolution
l
16 Bits
Monotonicity
l
16 Bits
DNL Differential Nonlinearity Guaranteed Monotonic (Note 3)
l
±0.5 ±1 LSB
INL Integral Nonlinearity (Note 3)
l
±4 ±12 LSB
ZSE Zero Scale Error
l
0 2 mV
V
OS
Offset Error Measured at Code 200 (LTC1657)
l
±0.3 ±3 mV
Measured at Code 200 (LTC1657L)
l
±0.4 ±4 mV
V
OS
TC Offset Error Tempco ±5 µV/°C
Gain Error
l
±2 ±16 LSB
Gain Error Drift LTC1657 0.5 ppm/°C
LTC1657L 1.0 ppm/°C
Power Supply
V
CC
Positive Supply Voltage For Specified Performance (LTC1657)
l
4.5 5.5 V
For Specified Performance (LTC1657L)
l
2.7 5.5 V
I
CC
Supply Current (Note 4)
l
650 1200 µA
Op Amp DC Performance
Short-Circuit Current Low V
OUT
Shorted to GND
l
70 120 mA
Short-Circuit Current High V
OUT
Shorted to V
CC
l
80 140 mA
Output Impedance to GND Input Code = 0 (LTC1657)
l
40 120 Ω
Input Code = 0 (LTC1657L)
l
120 275 Ω
Output Line Regulation Input Code = 65535, LTC1657: V
CC
= 4.5V to 5.5V
l
4 mV/V
Input Code = 65535, LTC1657L: V
CC
= 2.7V to 5.5V
l
3 mV/V
AC Performance
Voltage Output Slew Rate (Note 5)
l
±0.3 ±0.7 V/µs
Voltage Output Settling Time (Note 5) to 0.0015% (16-Bit Settling Time) 20 µs
(Note 5) to 0.012% (13-Bit Settling Time) 10 µs
Digital Feedthrough (Note 6) 0.3 nV•s
Midscale Glitch Impulse DAC Switch Between 8000H and 7FFFH 8 nV•s
Output Voltage Noise Using
Internal Reference at 1kHz
X1/X2 Tied
to V
OUT
(Notes 8, 9)
LTC1657
LTC1657L
165
105
nV/√Hz
nV/√Hz
Output Voltage Noise Using
External Reference at 1kHz
X1/X2 Tied to V
OUT
(Notes 8, 9, 10) 50 nV/√Hz
Output Voltage Noise Density Using
Internal Reference from 0.1Hz to 10Hz
X1/X2 Tied to V
OUT
(Notes 8, 9) 8 µV
P-P
Reference Input Multiplying BW 700 kHz
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

LTC1657LIGN#TRPBF

Mfr. #:
Buy LTC1657LIGN#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Digital to Analog Converters - DAC Parallel 16-B R2R uP DAC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet