Manualsbrain.com
  1. Manuali
  2. Marche
  3. Linear Technology
  4. LTC2462: 16-bit SPI Differential Delta Sigma ADC with 10ppm max Internal Reference, req DC590 DC1492A
  5. Scheda Tecnica

Linear Technology LTC2462: 16-bit SPI Differential Delta Sigma ADC with 10ppm max Internal Reference, req DC590 DC1492A DC1492A Scheda Tecnica

Codici prodotto
DC1492A
Scarica
Pagina di 22
LTC2460/LTC2462
1
24602fa
–50
–10
10
–30
50
70
30
90
TEMPERATURE (°C)
REFERENCE OUTPUT VOL
TAGE (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.