LTC1850 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1850' PDF : 28 Pages View PDF
LTC1850/LTC1851
CO VERTER CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Notes 5, 6)
PARAMETER
CONDITIONS
LTC1850
LTC1851
MIN TYP MAX MIN TYP MAX UNITS
Resolution (No Missing Codes)
q 10
12
Bits
Integral Linearity Error
(Note 7)
q
±0.25 ± 0.5
±0.35 ±1
LSB
Differential Linearity Error
q
±0.25 ±0.5
±0.25 ±1
LSB
Offset Error (Bipolar and Unipolar)
Gain = 1 (PGA = 1)
Gain = 1 (PGA = 1)
Gain = 2 (PGA = 0)
(Note 8)
REFCOMP ≥ 2V
REFCOMP ≥ 2V
±2
q
±0.5 ±2
q
±1 ±4
±5
LSB
±1 ±7
LSB
±2 ±10 LSB
Offset Error Match
±0.5
±1
LSB
Unipolar Gain Error
Gain = 1 (PGA = 1)
Gain = 2 (PGA = 0)
With External 4.096V Reference
Applied to REFCOMP (Note 12)
±2
±6
LSB
±4
±10 LSB
Unipolar Gain Error Match
±0.5
±1
LSB
Bipolar Gain Error
Gain = 1 (PGA = 1)
Gain = 2 (PGA = 0)
With External 4.096V Reference
Applied to REFCOMP (Note 12)
±2
±6
LSB
±4
±10 LSB
Bipolar Gain Error Match
±0.5
±1
LSB
Full-Scale Error Temperature Coefficient
15
15
ppm/°C
A ALOG I PUT The q denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. (Note 5)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Analog Input Range (Note 9)
Unipolar, Gain = 1 (PGA = 1)
Unipolar, Gain = 2 (PGA = 0)
Bipolar, Gain = 1 (PGA = 1)
Bipolar, Gain = 2 (PGA = 0)
4.75V ≤ VDD ≤ 5.25V
0 – REFCOMP
V
0 – REFCOMP/2
V
±REFCOMP/2
V
±REFCOMP/4
V
IIN
Analog Input Leakage Current
VIN > 0V < VDD, All Channels
q
±1
µA
CIN
Analog Input Capacitance
Between Conversions (Gain = 1)
Between Conversions (Gain = 2)
During Conversions
15
pF
25
pF
5
pF
tACQ
Sample-and-Hold Acquisition Time
q
50
150
ns
tS(MUX)
Multiplexer Settling Time (Includes tACQ)
q
50
150
ns
tAP
tjitter
CMRR
Sample-and-Hold Aperture Delay Time
Sample-and-Hold Aperture Delay Time Jitter
Analog Input Common Mode Rejection Ratio
0V < (AIN– = AIN+) < 5V
– 0.5
ns
2
psRMS
60
dB
18501f
3
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