Datasheet

LTC2657
4
2657f
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION
TEMPERATURE
RANGE
MAXIMUM
INL
LTC2657BCFE-L16#PBF LTC2657BCFE-L16#TRPBF LTC2657FE-L16 20-Lead Thermally Enhanced TSSOP 0°C to 70°C ±4
LTC2657BIFE-L16#PBF LTC2657BIFE-L16#TRPBF LTC2657FE-L16 20-Lead Thermally Enhanced TSSOP –40°C to 85°C ±4
LTC2657BCUFD-L16#PBF LTC2657BCUFD-L16#TRPBF 57L16
20-Lead (4mm × 5mm) Plastic QFN
0°C to 70°C ±4
LTC2657BIUFD-L16#PBF LTC2657BIUFD-L16#TRPBF 57L16
20-Lead (4mm × 5mm) Plastic QFN
–
40°C to 85°C ±4
LTC2657BCFE-H16#PBF LTC2657BCFE-H16#TRPBF LTC2657FE-H16 20-Lead Thermally Enhanced TSSOP 0°C to 70°C ±4
LTC2657BIFE-H16#PBF LTC2657BIFE-H16#TRPBF LTC2657FE-H16 20-Lead Thermally Enhanced TSSOP –40°C to 85°C ±4
LTC2657BCUFD-H16#PBF LTC2657BCUFD-H16#TRPBF 57H16
20-Lead (4mm × 5mm) Plastic QFN
0°C to 70°C ±4
LTC2657BIUFD-H16#PBF LTC2657BIUFD-H16#TRPBF 57H16
20-Lead (4mm × 5mm) Plastic QFN
–
40°C to 85°C ±4
LTC2657CFE-L12#PBF LTC2657CFE-L12#TRPBF LTC2657FE-L12 20-Lead Thermally Enhanced TSSOP 0°C to 70°C ±1
LTC2657IFE-L12#PBF LTC2657IFE-L12#TRPBF LTC2657FE-L12 20-Lead Thermally Enhanced TSSOP –40°C to 85°C ±1
LTC2657CUFD-L12#PBF LTC2657CUFD-L12#TRPBF 57L12
20-Lead (4mm × 5mm) Plastic QFN
0°C to 70°C ±1
LTC2657IUFD-L12#PBF LTC2657IUFD-L12#TRPBF 57L12
20-Lead (4mm × 5mm) Plastic QFN
–
40°C to 85°C ±1
LTC2657CFE-H12#PBF LTC2657CFE-H12#TRPBF LTC2657FE-H12 20-Lead Thermally Enhanced TSSOP 0°C to 70°C ±1
LTC2657IFE-H12#PBF LTC2657IFE-H12#TRPBF LTC2657FE-H12 20-Lead Thermally Enhanced TSSOP –40°C to 85°C ±1
LTC2657CUFD-H12#PBF LTC2657CUFD-H12#TRPBF 57H12
20-Lead (4mm × 5mm) Plastic QFN
0°C to 70°C ±1
LTC2657IUFD-H12#PBF LTC2657IUFD-H12#TRPBF 57H12
20-Lead (4mm × 5mm) Plastic QFN
–
40°C to 85°C ±1
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the
shipping container.Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi
cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
CC
= 2.7V to 5.5V, V
OUT
unloaded unless otherwise specifi ed.
LTC2657B-L16/LTC2657-L12 (Internal Reference = 1.25V)
SYMBOL PARAMETER CONDITIONS
LTC2657-12 LTC2657B-16
UNITSMIN TYP MAX MIN TYP MAX
DC Performance
Resolution
l
12 16 Bits
Monotonicity (Note 3)
l
12 16 Bits
DNL Differential Nonlinearity (Note 3)
l
±0.1 ±0.5 ±0.3 ±1 LSB
INL Integral Nonlinearity (Note 3) V
CC
= 5.5V, V
REF
= 2.5V
l
±0.5 ±1 ±2 ±4 LSB
Load Regulation V
CC
= 5V ±10%, Internal Reference, Mid-Scale,
–15mA ≤ I
OUT
≤ 15mA
l
0.04 0.125 0.6 2 LSB/mA
V
CC
= 3V ±10%, Internal Reference, Mid-Scale,
–7.5mA ≤ I
OUT
≤ 7.5mA
l
0.06 0.25 1 4 LSB/mA
ZSE Zero-Scale Error
l
13 13 mV
V
OS
Offset Error (Note 4) V
REF
= 1.25V
l
±1 ±2 ±1 ±2 mV
V
OS
Temperature Coeffi cient 2 2 µV/°C
GE Gain Error
l
±0.02 ±0.1 ±0.02 ±0.1 %FSR
Gain Temperature Coeffi cient 1 1 ppm/°C