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LTC1657LCGN#TRPBF

Description
16 位数模转换器 1 28-SSOP
Categorysemiconductor    ADC/DAC - professional data collection   
File Size275KB,18 Pages
ManufacturerADI
Websitehttps://www.analog.com
Environmental Compliance
Download Datasheet Parametric View All

LTC1657LCGN#TRPBF Overview

16 位数模转换器 1 28-SSOP

LTC1657LCGN#TRPBF Parametric

Parameter NameAttribute value
category
MakerADI
series-
PackageTape and Reel (TR)
Number of digits16
Number of digital-to-analog converters1
Setup time20µs (standard)
Output typeVoltage - Buffered
Differential outputnone
Data interfacein parallel
Reference typeoutside, inside
Voltage - Power Supply, Analog2.7V ~ 5.5V
Voltage - Power Supply, Digital2.7V ~ 5.5V
INL/DNL (LSB)±4,±0.5
ArchitectureResistor string DAC
Operating temperature0°C ~ 70°C
Package/casing28-SSOP (0.154", 3.90mm wide)
Supplier device packaging28-SSOP
Installation typesurface mount type
Basic product numberLTC1657
LTC1657/LTC1657L
Parallel 16-Bit Rail-to-Rail
Micropower DAC
FEATURES
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DESCRIPTION
The
LTC
®
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 LTC1450/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.
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.
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16-Bit Monotonic Over Temperature
Deglitched Rail-to-Rail Voltage Output: 8nV•s
I
CC
: 650µA Typ
Maximum DNL Error: ±1LSB
Settling Time: 20µs to ±1LSB
Built-In Reference: 2.048V (LTC1657)
1.25V (LTC1657L)
Internal Power-On Reset to Zero Volts
Asynchronous
CLR
Pin
Output Buffer Configurable for Gain of 1 or 2
Parallel 16-Bit or 2-Byte Double Buffered Interface
Multiplying Capability
Narrow 28-Lead SSOP Package
APPLICATIONS
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Instrumentation
Digital Calibration
Industrial Process Control
Automatic Test Equipment
Communication Test Equipment
BLOCK DIAGRAM
23
19 D15 (MSB)
18
17
16
15
14
13
DATA IN FROM
MICROPROCESSOR
DATA BUS
12
D8
11 D7
10
9
8
7
6
5
4 D0 (LSB)
3
CSMSB
FROM
MICROPROCESSOR
DECODE LOGIC
1
WR
2
CSLSB
28
LDAC
FROM
SYSTEM RESET
27
CLR
POWER-ON
RESET
GND
20
REFLO
21
LSB
8-BIT
INPUT
REGISTER
16-BIT
DAC
REGISTER
16-BIT
DAC
MSB
8-BIT
INPUT
REGISTER
REFOUT
REFERENCE
LTC1657: 2.048V
LTC1657L: 1.25V
22
REFHI
LTC1657: 4.5V TO 5.5V
LTC1657L: 2.7V TO 5.5V
24
V
CC
Differential Nonlinearity
vs Input Code
1.0
DIFFERENTIAL NONLINEARITY (LSB)
0.8
0.6
0.4
0.2
0
+
R
R
V
OUT
25
LTC1657:
0V TO 4.096V
LTC1657L:
0V TO 2.5V
–0.2
–0.4
–0.6
–0.8
–1.0
0
16384
32768
49152
DIGITAL INPUT CODE
65535
1657 TA02
X1/X2
26
1657 TA01
1657lfa
For more information
www.linear.com/LTC1657
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