Datasheet
3
225814fc
LTC2258-14
LTC2257-14/LTC2256-14
For more information www.linear.com/LTC2258-14For more information www.linear.com/LTC2258-14
converTer characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 5)
PARAMETER CONDITIONS
LTC2258-14 LTC2257-14 LTC2256-14
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX
Resolution (No Missing Codes)
l
14 14 14 Bits
Integral Linearity Error Differential Analog Input (Note 6)
l
–3 ±1 3 –2.5 ±1 2.5 –2.5 ±1 2.5 LSB
Differential Linearity Error Differential Analog Input
l
–0.8 ±0.3 0.8 –0.8 ±0.3 0.8 –0.8 ±0.3 0.8 LSB
Offset Error (Note 7)
l
–9 ±1.5 9 –9 ±1.5 9 –9 ±1.5 9 mV
Gain Error Internal Reference
External Reference
l
–1.5
±1.5
±0.4
1.5
–1.5
±1.5
±0.4
1.5
–1.5
±1.5
±0.4
1.5
%FS
%FS
Offset Drift ±20 ±20 ±20 µV/°C
Full-Scale Drift Internal Reference
External Reference
±30
±10
±30
±10
±30
±10
ppm/°C
ppm/°C
Transition Noise External Reference 1.13 1.13 1.13
LSB
RMS
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2258CUJ-14#PBF LTC2258CUJ-14#TRPBF LTC2258UJ-14 40-Lead (6mm × 6mm) Plastic QFN 0°C to 70°C
LTC2258IUJ-14#PBF LTC2258IUJ-14#TRPBF LTC2258UJ-14 40-Lead (6mm × 6mm) Plastic QFN –40°C to 85°C
LTC2257CUJ-14#PBF LTC2257CUJ-14#TRPBF LTC2257UJ-14 40-Lead (6mm × 6mm) Plastic QFN 0°C to 70°C
LTC2257IUJ-14#PBF LTC2257IUJ-14#TRPBF LTC2257UJ-14 40-Lead (6mm × 6mm) Plastic QFN –40°C to 85°C
LTC2256CUJ-14#PBF LTC2256CUJ-14#TRPBF LTC2256UJ-14 40-Lead (6mm × 6mm) Plastic QFN 0°C to 70°C
LTC2256IUJ-14#PBF LTC2256IUJ-14#TRPBF LTC2256UJ-14 40-Lead (6mm × 6mm) Plastic QFN –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/