LTC2610.pdf 데이터시트 (총 16 페이지) - 파일 다운로드 LTC2610 데이타시트 다운로드

No Preview Available !

LTC2600/LTC2610/LTC2620
FEATURES
Octal 16-/14-/12-Bit
Rail-to-Rail DACs in 16-Lead SSOP
DESCRIPTIO
s Smallest Pin Compatible Octal DACs:
LTC2600: 16 Bits
LTC2610: 14 Bits
LTC2620: 12 Bits
s Guaranteed 16-Bit Monotonic Over Temperature
s Tiny 16-Lead Narrow SSOP Package
s Wide 2.5V to 5.5V Supply Range
s Low Power Operation: 250µA per DAC at 3V
s Individual Channel Power-Down to 1µA, Max
s Ultralow Crosstalk between DACs (<10µV)
s High Rail-to-Rail Output Drive (±15mA, Min)
s Double-Buffered Digital Inputs
s Pin-Compatible 10-/8-Bit Versions
(LTC1660/LTC1665)
U
APPLICATIO S
s Mobile Communications
www.DataSheet4U.csom Process Control and Industrial Automation
s Instrumentation
s Automatic Test Equipment
The LTC®2600/LTC2610/LTC2620 are octal 16-, 14- and
12-bit, 2.5V-to-5.5V rail-to-rail voltage-output DACs in
16-lead narrow SSOP packages. They have built-in high
performance output buffers and are guaranteed mono-
tonic.
These parts establish new board-density benchmarks for
16- and 14-bit DACs and advance performance standards
for output drive, crosstalk and load regulation in single-
supply, voltage-output multiples.
The parts use a simple SPI/MICROWIRETM compatible
3-wire serial interface which can be operated at clock rates
up to 50MHz. Daisy-chain capability and a hardware CLR
function are included.
The LTC2600/LTC2610/LTC2620 incorporate a power-on
reset circuit. During power-up, the voltage outputs rise
less than 10mV above zero scale; and after power-up, they
stay at zero scale until a valid write and update take place.
, LTC and LT are registered trademarks of Linear Technology Corporation.
MICROWIRE is a trademark of National Semiconductor Corporation.
BLOCK DIAGRA
GND 1
VOUT A 2
DAC A
DAC H
16 VCC
15 VOUT H
VOUT B 3
DAC B
VOUT C 4
DAC C
VOUT D 5
REF 6
CS/LD 7
SCK 8
DAC D
CONTROL
LOGIC
DECODE
32-BIT SHIFT REGISTER
DAC G
14 VOUT G
DAC F
13 VOUT F
DAC E
12 VOUT E
11 CLR
10 SDO
9 SDI
2600 BD
Differential Nonlinearity (LTC2600)
1.0
VCC = 5V
0.8 VREF = 4.096V
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
16384
32768
CODE
49152 65535
2600 G21
2600f
1

No Preview Available !

LTC2600/LTC2610/LTC2620
ABSOLUTE AXI U RATI GS
(Note 1)
Any Pin to GND ........................................... – 0.3V to 6V
Any Pin to VCC .............................................– 6V to 0.3V
Maximum Junction Temperature ......................... 125°C
Operating Temperature Range
LTC2600C/LTC2610C/LTC2620C .......... 0°C to 70°C
LTC2600I/LTC2610I/LTC2620I .......... – 40°C to 85°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................ 300°C
PACKAGE/ORDER I FOR ATIO
TOP VIEW
GND
VOUT A
VOUT B
VOUT C
VOUT D
REF
CS/LD
SCK
1
2
3
4
5
6
7
8
16 VCC
15 VOUT H
14 VOUT G
13 VOUT F
12 VOUT E
11 CLR
10 SDO
9 SDI
GN PACKAGE
16-LEAD PLASTIC SSOP
TJMAX = 125°C, θJA = 150°C/W
ORDER PART
NUMBER
LTC2600CGN
LTC2600IGN
LTC2610CGN
LTC2610IGN
LTC2620CGN
LTC2620IGN
GN PART MARKING
2600
2600I
2610
2610I
2620
2620I
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICSwww.DataSheet4U.com
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 2.5V to 5.5V, VREF VCC, VOUT unloaded, unless otherwise noted.
SYMBOL PARAMETER
DC Performance
Resolution
Monotonicity
DNL Differential Nonlinearity
INL Integral Nonlinearity
Load Regulation
CONDITONS
VCC = 5V, VREF = 4.096V (Note 2)
VCC = 5V, VREF = 4.096V (Note 2)
VCC = 5V, VREF = 4.096V (Note 2)
VREF = VCC = 5V, Midscale
IOUT = 0mA to 15mA Sourcing
IOUT = 0mA to 15mA Sinking
VREF = VCC = 2.5V, Midscale
IOUT = 0mA to 7.5mA Sourcing
IOUT = 0mA to 7.5mA Sinking
q
q
q
q
q
q
q
q
LTC2620
LTC2610
MIN TYP MAX MIN TYP MAX
12 14
12 14
±0.5 ±1
±0.75 ±4
±3 ±16
0.025 0.125
0.025 0.125
0.1 0.5
0.1 0.5
0.05 0.25
0.05 0.25
0.2 1
0.2 1
LTC2600
MIN TYP MAX
16
16
±1
±12 ±64
0.3 2
0.3 2
0.8 4
0.8 4
UNITS
Bits
Bits
LSB
LSB
LSB/mA
LSB/mA
LSB/mA
LSB/mA
SYMBOL PARAMETER
DC Performance
ZSE Zero-Scale Error
VOS Offset Error
VOS Temperature Coefficient
GE Gain Error
Gain Temperature Coefficient
PSR Power Supply Rejection
2
CONDITIONS
VCC = 5V, VREF = 4.096V Code = 0
VCC = 5V, VREF = 4.096V, (Note 7)
VCC = 5V, VREF = 4.096V
VCC = ±10%
LTC2600/LTC2610/LTC2620
MIN TYP MAX UNITS
q
19
mV
q
±1 ±9
mV
1.7 µV/°C
q ±0.2 ±0.7 %FSR
6.5 ppm/°C
–80 dB
2600f

No Preview Available !

LTC2600/LTC2610/LTC2620
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 2.5V to 5.5V, VREF VCC, VOUT unloaded, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
LTC2600/LTC2610/LTC2620
MIN TYP MAX
ROUT
DC Output Impedance
DC Crosstalk (Note 4)
VREF = VCC = 5V, Midscale; –15mA IOUT 15mA q
VREF = VCC = 2.5V, Midscale; –7.5mA IOUT 7.5mA q
Due to Full Scale Output Change (Note 5)
Due to Load Current Change
Due to Powering Down (per Channel)
0.025
0.030
10
3.5
–7.3
0.15
0.15
ISC Short-Circuit Output Current
VCC = 5.5V, VREF = 5.6V
Code: Zero Scale; Forcing Output to VCC
Code: Full Scale; Forcing Output to GND
q 15
q 15
34 60
34 60
VCC = 2.5V, VREF = 2.6V
Code: Zero Scale; Forcing Output to VCC
Code: Full Scale; Forcing Output to GND
q 7.5
q 7.5
18 50
24 50
Reference Input
Input Voltage Range
Resistance
Normal Mode
q0
q 11
VCC
16 20
Capacitance
90
IREF Reference Current, Power Down Mode All DACs Powered Down
Power Supply
q
0.001
1
VCC Positive Supply Voltage
ICC Supply Current
www.DataSheet4U.com
AC Performance
For Specified Performance
VCC = 5V (Note 3)
VCC = 3V (Note 3)
All DACs Powered Down (Note 3) VCC = 5V
All DACs Powered Down (Note 3) VCC = 3V
q 2.5
q
q
q
q
5.5
2.6 4
2.0 3.2
0.35 1
0.10 1
Voltage Output Slew Rate
0.80
Capacitive Load Driving
1000
Glitch Impulse
At Midscale Transition
12
Multiplying Bandwidth
180
en Output Voltage Noise Density
At f = 1kHz
At f = 10kHz
120
100
Output Voltage Noise
0.1Hz to 10Hz
15
Digital I/O
VIH Digital Input High Voltage
VIL Digital Input Low Voltage
VOH Digital Output High Voltage
VOL Digital Output Low Voltage
ILK Digital Input Leakage
CIN Digital Input Capacitance
VCC = 2.5V to 5.5V
VCC = 2.5V to 3.6V
VCC = 4.5V to 5.5V
VCC = 2.7V to 5.5V
VCC = 2.5V to 5.5V
Load Current = –100µA
Load Current = +100µA
VIN = GND to VCC
(Note 6)
q 2.4
q 2.0
q
q
q
q VCC – 0.4
q
q
q
0.8
0.6
0.5
0.4
±1
8
UNITS
µV
µV/mA
µV
mA
mA
mA
mA
V
k
pF
µA
V
mA
mA
µA
µA
V/µs
pF
nV • s
kHz
nV/Hz
nV/Hz
µVP-P
V
V
V
V
V
V
V
µA
pF
2600f
3

No Preview Available !

LTC2600/LTC2610/LTC2620
WU
TI I G CHARACTERISTICS The q denotes specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (See Figure 1) (Note 6)
SYMBOL PARAMETER
CONDITONS
MIN TYP MAX UNITS
VCC = 2.5V to 5.5V
t1 SDI Valid to SCK Setup
q4
ns
t2 SDI Valid to SCK Hold
q4
ns
t3 SCK High Time
q9
ns
t4 SCK Low Time
q9
ns
t5 CS/LD Pulse Width
q 10
ns
t6 LSB SCK High to CS/LD High
t7 CS/LD Low to SCK High
q7
q7
ns
ns
t8 SDO Propagation Delay from SCK Falling Edge CLOAD = 10pF
VCC = 4.5V to 5.5V
VCC = 2.5V to 5.5V
q
q
20 ns
45 ns
t9 CLR Pulse Width
q 20
ns
t10 CS/LD High to SCK Positive Edge
SCK Frequency
50% Duty Cycle
q7
q
ns
50 MHz
Note 1: Absolute maximum ratings are those values beyond which the life
of a device may be impaired.
Note 2: Linearity and monotonicity are defined from code kL to code
2N – 1, where N is the resolution and kL is given by kL = 0.016(2N/VREF),
rounded to the nearest whole code. For VREF = 4.096V and N = 16, kL =
256 and linearity is defined from code 256 to code 65,535.
www.DataSheet4U.com
Note 3: Digital inputs at 0V or VCC.
Note 4: DC crosstalk is measured with VCC = 5V and VREF = 4.096V, with
the measured DAC at midscale, unless otherwise noted.
Note 5: RL = 2kto GND or VCC.
Note 6: Guaranteed by design and not production tested.
Note 7: Inferred from measurement at code 256 (LTC2600), code 64
(LTC2610) or code 16 (LTC2620).
TYPICAL PERFOR A CE CHARACTERISTICS (LTC2600/LTC2610/LTC2620)
Current Limiting
0.10
CODE = MIDSCALE
0.08
VREF = VCC = 5V
0.06
VREF = VCC = 3V
0.04
0.02
0
–0.02
–0.04
–0.06
VREF = VCC = 3V
VREF = VCC = 5V
–0.08
–0.10
–40 –30 –20 –10 0 10 20 30 40
IOUT (mA)
2600 G01
Load Regulation
1.0
CODE = MIDSCALE
0.8
0.6
0.4
0.2
0
VREF = VCC = 5V
–0.2
–0.4
–0.6 VREF = VCC = 3V
–0.8
–1.0
–35 –25 –15 –5 5
IOUT (mA)
15
25 35
2600 G02
Offset Error vs Temperature
3
2
1
0
–1
–2
–3
–50 –30 –10 10 30 50
TEMPERATURE (°C)
70 90
2600 G03
2600f
4

No Preview Available !

LTC2600/LTC2610/LTC2620
TYPICAL PERFOR A CE CHARACTERISTICS
LTC2600/LTC2610/LTC2620
Zero-Scale Error vs Temperature
3
2.5
2.0
1.5
1.0
0.5
0
–50 –30 –10 10 30 50
TEMPERATURE (°C)
70 90
2600 G04
Gain Error vs Temperature
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–50 –30 –10 10 30 50
TEMPERATURE (°C)
70 90
2600 G05
Offset Error vs VCC
3
2
1
0
–1
–2
–3
2.5 3 3.5 4 4.5 5 5.5
VCC (V)
2600 G06
Gain Error vs VCC
0.4
0.3
0.2
www.DataSheet4U.com 0.1
0
–0.1
–0.2
–0.3
–0.4
2.5 3 3.5 4 4.5
VCC (V)
5 5.5
2600 G07
Midscale Glitch Impulse
VOUT
10mV/DIV
CS/LD
5V/DIV
12nV-s TYP
2.5µs/DIV
2600 G10
ICC Shutdown vs VCC
450
400
350
300
250
200
150
100
50
0
2.5 3 3.5 4 4.5
VCC (V)
5 5.5
2600 G08
Large-Signal Settling
VOUT
0.5V/DIV
VREF = VCC = 5V
1/4-SCALE TO 3/4-SCALE
2.5µs/DIV
2600 G09
Power-On Reset Glitch
VCC
1V/DIV
VOUT
10mV/DIV
44mmVVPPEEAAKK
250µs/DIV
2600 G11
Headroom at Rails vs Output
Current
5.0
4.5 5V SOURCING
4.0
3.5
3V SOURCING
3.0
2.5
2.0
1.5
5V SINKING
1.0
3V SINKING
0.5
0
0 1 2 3 4 5 6 7 8 9 10
IOUT (mA)
2600 G12
2600f
5