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LTC2460IDD#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
LTC2460/LTC2462
1
24602fa
–50 –10 10–30 50 7030 90
TEMPERATURE (°C)
REFERENCE OUTPUT VOLTAGE (V)
1.2520
1.2515
1.2510
1.2505
1.2500
24602 TA01b
1.2480
1.2485
1.2490
1.2495
Typical applicaTion
FeaTures
applicaTions
DescripTion
Ultra-Tiny, 16-Bit ΔΣ ADCs
with 10ppm/°C Max
Precision Reference
The LTC
®
2460/LTC2462 are ultra tiny, 16-Bit analog-to-
digital converters with an integrated precision reference.
They use a single 2.7V to 5.5V supply and communicate
through an SPI Interface. The LTC2460 is single-ended
with a 0V to V
REF
input range and the LTC2462 is dif-
ferential with a ±V
REF
input range. Both ADC’s include
a 1.25V integrated reference with 2ppm/°C drift per-
formance and 0.1% initial accuracy. The converters are
available in a 12-pin DFN 3mm × 3mm package or an
MSOP-12 package. They include an integrated oscillator
and perform conversions with no latency for multiplexed
applications. The LTC2460/LTC2462 include a proprietary
input sampling scheme that reduces the average input
current several orders of magnitude when compared to
conventional delta sigma converters.
Following a single conversion, the LTC2460/LTC2462
automatically power down the converter and can also be
configured to power down the reference. When both the
ADC and reference are powered down, the supply current
is reduced to 200nA.
The LTC2460/LTC2462 can sample at 60 conversions per
second, and due to the very large oversampling ratio,
have extremely relaxed antialiasing requirements. Both
include continuous internal offset and fullscale calibration
algorithms which are transparent to the user, ensuring
accuracy over time and the operating temperature range.
V
REF
vs Temperature
n
16-Bit Resolution, No Missing Codes
n
Internal Reference, High Accuracy 10ppm/°C (Max)
n
Single-Ended (LTC2460) or Differential (LTC2462)
n
2LSB Offset Error
n
0.01% Gain Error
n
60 Conversions Per Second
n
Single Conversion Settling Time for Multiplexed
Applications
n
Single-Cycle Operation with Auto Shutdown
n
1.5mA Supply Current
n
2µA (Max) Sleep Current
n
Internal Oscillator—No External Components Required
n
SPI Interface
n
Ultra-Tiny 12-Lead 3mm × 3mm DFN and MSOP
Packages
n
System Monitoring
n
Environmental Monitoring
n
Direct Temperature Measurements
n
Instrumentation
n
Industrial Process Control
n
Data Acquisition
n
Embedded ADC Upgrades
10k
10k
10k
R
SCK
SPI
INTERFACE
SDO
CS
0.1µF
0.1µF
2.7V TO 5.5V
10µF
0.1µF
IN
+
REFOUT
REF
–
V
CC
0.1µF
COMP
GND
IN
–
0.1µF
LTC2462
24602 TA01a
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
No Latency ∆∑ is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners. Protected by U.S. Patents including 6208279, 6411242,
7088280, 7164378.
LTC2460/LTC2462
2
24602fa
pin conFiguraTion
absoluTe MaxiMuM raTings
Supply Voltage (V
CC
) ................................... –0.3V to 6V
Analog Input Voltage
(IN
+
, IN
–
, IN, REF
–
,
COMP, REFOUT) ...........................–0.3V to (V
CC
+ 0.3V)
Digital Voltage
(V
SDI
, V
SDO
, V
SCK
, V
CS
) ................–0.3V to (V
CC
+ 0.3V)
(Notes 1, 2)
orDer inForMaTion
Storage Temperature Range .................. –65°C to 150°C
Operating Temperature Range
LTC2460C/LTC2462C ............................... 0°C to 70°C
LTC2460I/LTC2462I ............................. –40°C to 85°C
LTC2462 LTC2462
TOP VIEW
DD PACKAGE
12-LEAD (3mm × 3mm) PLASTIC DFN
12
11
8
9
10
4
5
3
2
1
V
CC
GND
IN
–
IN
+
REF
–
GND
REFOUT
COMP
CS
SDI
SCK
SDO
6
7
T
JMAX
= 125°C, θ
JA
= 43°C/W
EXPOSED PAD (PIN 13) PCB GROUND CONNECTION OPTIONAL
1
2
3
4
5
6
REFOUT
COMP
CS
SDI
SCK
SDO
12
11
10
9
8
7
V
CC
GND
IN
–
IN
+
REF
–
GND
TOP VIEW
MS PACKAGE
12-LEAD PLASTIC MSOP
T
JMAX
= 125°C, θ
JA
= 120°C/W
LTC2460 LTC2460
TOP VIEW
DD PACKAGE
12-LEAD (3mm × 3mm) PLASTIC DFN
12
11
8
9
10
4
5
3
2
1
V
CC
GND
GND
IN
REF
–
GND
REFOUT
COMP
CS
SDI
SCK
SDO
6
7
T
JMAX
= 125°C, θ
JA
= 43°C/W
EXPOSED PAD (PIN 13) PCB GROUND CONNECTION OPTIONAL
1
2
3
4
5
6
REFOUT
COMP
CS
SDI
SCK
SDO
12
11
10
9
8
7
V
CC
GND
GND
IN
REF
–
GND
TOP VIEW
MS PACKAGE
12-LEAD PLASTIC MSOP
T
JMAX
= 125°C, θ
JA
= 120°C/W
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2460CDD#PBF LTC2460CDD#TRPBF LFDQ 12-Lead Plastic (3mm × 3mm) DFN 0°C to 70°C
LTC2460IDD#PBF LTC2460IDD#TRPBF LFDQ 12-Lead Plastic (3mm × 3mm) DFN –40°C to 85°C
LTC2460CMS#PBF LTC2460CMS#TRPBF 2460 12-Lead Plastic MSOP-12 0°C to 70°C
LTC2460IMS#PBF LTC2460IMS#TRPBF 2460 12-Lead Plastic MSOP-12 –40°C to 85°C
LTC2462CDD#PBF LTC2462CDD#TRPBF LDXM 12-Lead Plastic (3mm × 3mm) DFN 0°C to 70°C
LTC2462IDD#PBF LTC2462IDD#TRPBF LDXM 12-Lead Plastic (3mm × 3mm) DFN –40°C to 85°C
LTC2462CMS#PBF LTC2462CMS#TRPBF 2462 12-Lead Plastic MSOP-12 0°C to 70°C
LTC2462IMS#PBF LTC2462IMS#TRPBF 2462 12-Lead Plastic MSOP-12 –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/
LTC2460/LTC2462
3
24602fa
elecTrical characTerisTics
PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) (Note 3)
l
16 Bits
Integral Nonlinearity (Note 4)
l
1 10 LSB
Offset Error
l
2 15 LSB
Offset Error Drift 0.02 LSB/°C
Gain Error Includes Contributions of ADC and Internal Reference
l
±0.01 ±0.25 % of FS
Gain Error Drift Includes Contributions of ADC and Internal Reference
C-Grade
I-Grade
l
l
±2
±5
±10
ppm/°C
ppm/°C
Transition Noise 2.2 µV
RMS
Power Supply Rejection DC 80 dB
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 2)
analog inpuTs
The l denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at T
A
= 25°C.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Supply Voltage
l
2.7 5.5 V
I
CC
Supply Current
Conversion
Nap
Sleep
l
l
l
1.5
800
0.2
2.5
1500
2
mA
µA
µA
The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
+
Positive Input Voltage Range LTC2462
l
0 V
REF
V
V
IN
–
Negative Input Voltage Range LTC2462
l
0 V
REF
V
V
IN
Input Voltage Range LTC2460
l
0 V
REF
V
V
OR
+
, V
UR
+
Overrange/Underrange Voltage, IN
+
V
IN
–
= 0.625V (See Figure 3) 8 LSB
V
OR
–
, V
UR
–
Overrange/Underrange Voltage, IN– V
IN
+
= 0.625V (See Figure 3) 8 LSB
C
IN
IN
+
, IN
–
, IN Sampling Capacitance 0.35 pF
I
DC_LEAK(IN
+
, IN
–
, IN)
IN
+
, IN
–
DC Leakage Current (LTC2462)
IN DC Leakage Current (LTC2460)
V
IN
= GND (Note 8)
V
IN
= V
CC
(Note 8)
l
l
–10
–10
1
1
10
10
nA
nA
I
DC_LEAK(IN
–
)
IN
–
DC Leakage Current V
IN
= GND (Note 8)
V
IN
= V
CC
(Note 8)
l
l
–10
–10
1
1
10
10
nA
nA
I
CONV
Input Sampling Current (Note 5) 50 nA
V
REF
Reference Output Voltage
l
1.247 1.25 1.253 V
Reference Voltage Coefficient (Note 11)
C-Grade
I-Grade
l
±2
±5
±10
ppm/°C
ppm/°C
Reference Line Regulation 2.7V ≤ V
CC
≤ 5.5V –90 dB
Reference Short Circuit Current V
CC
= 5.5, Forcing Output to GND
l
35 mA
COMP Pin Short Circuit Current V
CC
= 5.5, Forcing Output to GND
l
200 µA
Reference Load Regulation 2.7V ≤ V
CC
≤ 5.5V, I
OUT
= 100μA Sourcing 3.5 mV/mA
Reference Output Noise Density C
COMP
= 0.1μF, C
REFOUT
= 0.1μF, At f = 1kHz 30 nV/√Hz
power requireMenTs
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22

LTC2460IDD#TRPBF

Mfr. #:
Buy LTC2460IDD#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Analog to Digital Converters - ADC 16-Bit SPI 60Hz Single-Ended Delta Sigma ADC with Internal Reference
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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