LTC2636IDE-LZ8#PBF Linear Technology, LTC2636IDE-LZ8#PBF Datasheet

IC DAC 8-BIT OCTAL 14-DFN

LTC2636IDE-LZ8#PBF

Manufacturer Part Number
LTC2636IDE-LZ8#PBF
Description
IC DAC 8-BIT OCTAL 14-DFN
Manufacturer
Linear Technology
Datasheet

Specifications of LTC2636IDE-LZ8#PBF

Settling Time
3.4µs
Number Of Bits
8
Data Interface
MICROWIRE™, Serial, SPI™
Number Of Converters
8
Voltage Supply Source
Single Supply
Power Dissipation (max)
2.7mW
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
14-DFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC2636IDE-LZ8#PBFLTC2636IDE-LZ8
Manufacturer:
LT
Quantity:
10 000
FEATURES
APPLICATIONS
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
BLOCK DIAGRAM
(LDAC)
V
V
V
CS/LD
V
OUTB
OUTC
OUTD
OUTA
GND
SCK
Integrated Precision Reference
2.5V Full-Scale 10ppm/°C (LTC2636-L)
4.096V Full-Scale 10ppm/°C (LTC2636-H)
Maximum INL Error: 2.5LSB (LTC2636-12)
Low Noise: 0.75mV
Guaranteed Monotonic Over –40°C to 125°C
Temperature Range
Selectable Internal or External Reference
2.7V to 5.5V Supply Range (LTC2636-L)
Ultralow Crosstalk Between DACs (<2.4nV•s)
Low Power: 0.9mA at 3V (LTC2636-L)
Power-On-Reset to Zero-Scale/Mid-Scale
Double-Buffered Data Latches
Tiny 14-Lead 4mm × 3mm DFN and 16-Lead MSOP
Packages
Mobile Communications
Process Control and Industrial Automation
Automatic Test Equipment
Portable Equipment
Automotive
Optical Networking
V
V
V
REF
REF
REF
DAC D
DAC A
DAC B
DAC C
P-P
CONTROL LOGIC
0.1Hz to 200KHz
INTERNAL REFERENCE
( ) MSOP PACKAGE ONLY
32-BIT SHIFT REGISTER
DECODE
DACs with10ppm/°C Reference
POWER-ON RESET
SWITCH
DAC H
DAC G
DAC F
DAC E
V
REF
Octal 12-/10-/8-Bit SPI V
DESCRIPTION
The LTC
voltage-output DACs with an integrated, high-accuracy,
low-drift 10ppm/°C reference in 14-lead DFN and 16-lead
MSOP packages. It has a rail-to-rail output buffer and is
guaranteed monotonic. The LTC2636-L has a full-scale
output of 2.5V, and operates from a single 2.7V to 5.5V
supply. The LTC2636-H has a full-scale output of 4.096V,
and operates from a 4.5V to 5.5V supply. Each DAC can
also operate with an external reference, which sets the DAC
full-scale output to the external reference voltage.
These DACs communicate via an SPI/MICROWIRE-com-
patible 3-wire serial interface which operates at clock rates
up to 50MHz. Hardware clear (CLR) and asynchronous
DAC update (LDAC) pins are available in the MSOP pack-
age. The LTC2636 incorporates a power-on reset circuit.
Options are available for reset to zero-scale or reset to
mid-scale in internal reference mode, or reset to mid-scale
in external reference mode after power-up.
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.
Protected by U.S. Patents including 5396245, 5859606, 6891433, 6937178, 7414561.
V
V
V
2636 BD
REF
REF
REF
REF
V
V
V
V
V
SDI
(CLR)
CC
OUTH
OUTG
OUTF
OUTE
®
2636 is a family of octal 12-, 10-, and 8-bit
–1
–2
2
1
0
0
12-Bit Integral Nonlinearity
V
INTERNAL REF .
CC
= 3V
1024
(LTC2636-LZ12)
CODE
2048
LTC2636
3072
2636 TA01
4095
OUT
2636fb
1

Related parts for LTC2636IDE-LZ8#PBF

LTC2636IDE-LZ8#PBF Summary of contents

Page 1

... 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. Protected by U.S. Patents including 5396245, 5859606, 6891433, 6937178, 7414561. ...

Page 2

LTC2636 ABSOLUTE MAXIMUM RATINGS Supply Voltage (V ) ................................... –0. CS/LD, SCK, SDI, LDAC, CLR ....................... –0. A–V H .................–0.3V to Min(V OUT OUT REF ...................................–0.3V to Min(V Operating Temperature Range LTC2636C ................................................ 0°C ...

Page 3

ORDER INFORMATION LTC2636 C DE – #TR Consult LTC Marketing for information on non-standard lead based fi nish parts. For more information on lead free part marking, go to: For more information on tape and reel specifi cations, ...

Page 4

LTC2636 PRODUCT SELECTION GUIDE PART MARKING PART NUMBER DFN MSOP REFERENCE LTC2636-LMI12 LMI12 6LMI12 2.5V•(4095/4096) LTC2636-LMI10 LMI10 6LMI10 2.5V•(1023/1024) LTC2636-LMI8 6LMI8 36LMI8 2.5V•(255/256) LTC2636-LMX12 LMX12 6LMX12 2.5V•(4095/4096) LTC2636-LMX10 LMX10 6LMX10 2.5V•(1023/1024) LTC2636-LMX8 6LMX8 36LMX8 2.5V•(255/256) LTC2636-LZ12 6LZ12 36LZ12 ...

Page 5

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T LTC2636-LMI12/-LMI10/-LMI8/-LMX12/-LMX10/-LMX8/-LZ12/-LZ10/-LZ8 (V SYMBOL PARAMETER CONDITIONS DC Performance Resolution Monotonicity V = 3V, Internal Reference (Note 4) CC DNL Differential Nonlinearity V = 3V, Internal Reference (Note 4) CC INL Integral ...

Page 6

LTC2636 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T LTC2636-LMI12/-LMI10/-LMI8/-LMX12/-LMX10/-LMX8/-LZ12/-LZ10/-LZ8 (V SYMBOL PARAMETER Reference Input V Input Voltage Range REF Resistance Capacitance I Reference Current, Power-Down Mode REF Reference Output Output Voltage Reference Temperature Coeffi cient Output Impedance ...

Page 7

TIMING CHARACTERISTICS range, otherwise specifi cations are LTC2636-LMI12/-LMI10/-LMI8/-LMX12/-LMX10/-LMX8/-LZ12/-LZ10/-LZ8 (V SYMBOL PARAMETER t1 SDI Valid to SCK Setup t2 SDI Valid to SCK Hold t3 SCK High Time t4 SCK Low Time CS/LD Pulse Width t5 LSB SCK ...

Page 8

LTC2636 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T LTC2636-HMI12/-HMI10/-HMI8/-HMX12/-HMX10/-HMX8/-HZ12/-HZ10/-HZ8 (V SYMBOL PARAMETER V DAC Output Span OUT PSR Power Supply Rejection I Short Circuit Output Current (Note 6) SC Sinking Sourcing Power Supply V Positive Supply Voltage ...

Page 9

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T LTC2636-HMI12/-HMI10/-HMI8/-HMX12/-HMX10/-HMX8/-HZ12/-HZ10/-HZ8 (V SYMBOL PARAMETER e Output Voltage Noise Density n Output Voltage Noise TIMING CHARACTERISTICS range, otherwise specifi cations are LTC2636-HMI12/-HMI10/-HMI8/-HMX12/-HMX10/-HMX8/-HZ12/-HZ10/-HZ8 (V SYMBOL PARAMETER t1 SDI Valid ...

Page 10

LTC2636 TYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, unless otherwise noted. LTC2636-L12 (Internal Reference Integral Nonlinearity (INL) 1 0.5 0 –0.5 –1.0 0 1024 2048 CODE INL vs Temperature 1 INL ...

Page 11

TYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, unless otherwise noted. LTC2636-H12 (Internal Reference Integral Nonlinearity (INL) 1 0.5 0 –0.5 –1.0 0 1024 2048 CODE INL vs Temperature 1 INL (POS) ...

Page 12

LTC2636 TYPICAL PERFORMANCE CHARACTERISTICS LTC2636-10 Integral Nonlinearity (INL) 1 2.5V FS INTERNAL REF . 0.5 0 –0.5 –1.0 0 256 CODE LTC2636-8 Integral Nonlinearity (INL) 0. 2.5V FS ...

Page 13

TYPICAL PERFORMANCE CHARACTERISTICS LTC2636 Large-Signal Response V OUT 0.5V/DIV 1/4 SCALE to 3/4 SCALE 2μs/DIV 2636 G22 Headroom at Rails vs Output Current 5.0 5V SOURCING 4.5 4.0 3.5 3V (LTC2636-L) SOURCING 3.0 ...

Page 14

LTC2636 TYPICAL PERFORMANCE CHARACTERISTICS LTC2636 Multiplying Bandwidth 2 0 –2 –4 –6 –8 –10 – – REF(DC 0.2V –16 REF(AC) P-P CODE = FULL-SCALE –18 1k 10k FREQUENCY (Hz) Gain Error ...

Page 15

PIN FUNCTIONS (DFN/MSOP) V (Pin 1/1): Supply Voltage Input. 2.7V ≤ (LTC2636-L) or 4.5V ≤ V ≤ 5.5V (LTC2636-H). Bypass CC to GND with a 0.1μF capacitor (Pins 2-5, 10-13/2-5, 12-15): DAC OUT ...

Page 16

LTC2636 BLOCK DIAGRAM GND V OUTA V REF V OUTB V REF V OUTC V REF V OUTD CS/LD SCK (LDAC) TIMING DIAGRAMS SCK SDI t 5 CS/LD LDAC 16 INTERNAL REFERENCE DAC A DAC B DAC C DAC D ...

Page 17

OPERATION The LTC2636 is a family of octal voltage output DACs in 14-lead DFN and 16-lead MSOP packages. Each DAC can operate rail-to-rail using an external reference, or with its full-scale voltage set by an integrated reference. Eighteen combinations of ...

Page 18

LTC2636 OPERATION INPUT WORD (LTC2636-12) COMMAND ADDRESS INPUT WORD (LTC2636-10) COMMAND ADDRESS INPUT WORD (LTC2636-8) COMMAND ADDRESS Serial Interface The CS/LD input is level triggered. ...

Page 19

OPERATION LTC2636 2636fb 19 ...

Page 20

LTC2636 OPERATION at the REF pin. Adding bypass capacitance to the REF pin will improve noise performance; and up to 10μF can be driven without oscillation. The REF output must be buffered when driving an external DC load current. Alternatively, ...

Page 21

OPERATION OUTPUT VOLTAGE 0V NEGATIVE INPUT CODE OFFSET (b) Figure 4. Effects of Rail-to-Rail Operation On a DAC Transfer Curve (Shown for 12 Bits). (a) Overall Transfer Function (b) Effect of Negative Offset for Codes Near Zero (c) Effect of ...

Page 22

LTC2636 PACKAGE DESCRIPTION 0.70 0.05 3.30 0.05 3.60 0.05 2.20 0.05 1.70 0.05 PACKAGE OUTLINE 0.25 0.05 0.50 BSC 3.00 REF RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED 0.889 0.127 (.035 .005) ...

Page 23

... Added details to Note 3 Revised Typical Applications circuit Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LTC2636 ...

Page 24

... LTC2636DE-LMI12 10 M1 LT1991 OUT DAC A DAC H REF 0.1μF DAC B DAC G –15V 11 DAC C DAC F 10 DAC D DAC E 14 GND 2636 TA02 Pins for Each DAC REF 2 C Interface LT 0610 REV B • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2008 ±5V OUT 2636fb ...

Related keywords