LTC1852 Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LTC1852 Datasheet PDF : 24 Pages
| |||
LTC1852/LTC1853
CONVERTER CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VDD = 2.7V to 5.5V, REFCOMP < VDD (Notes 5,6)
PARAMETER
CONDITIONS
LTC1852
LTC1853
MIN TYP MAX MIN TYP MAX UNITS
Resolution (No Missing Codes)
l 10
12
Bits
Integral Linearity Error
(Note 7)
l
±0.25 ±1
±0.35 ±1
LSB
Differential Linearity Error
l
±0.25 ±1
±0.25 ±1
LSB
Offset Error (Bipolar and Unipolar)
Gain = 1 (PGA = 1)
Gain = 2 (PGA = 0)
(Note 8)
REFCOMP ≥ 2V
l
±0.5 ±2
l
±1
±4
±1
±6
LSB
±2 ±12
LSB
Offset Error Match (Bipolar and Unipolar)
±0.5
±1
LSB
Unipolar Gain Error
Gain = 1 (PGA = 1)
Gain = 2 (PGA = 0)
Unipolar Gain Error Match
With External 4.096V Reference
Applied to REFCOMP (Note 12)
VDD = 4.75V to 5.25V, fS ≤ 400kHz
±2
±4
LSB
±4
±8
LSB
±0.5
±1
LSB
Bipolar Gain Error
Gain = 1 (PGA = 1)
Gain = 2 (PGA = 0)
Bipolar Gain Error Match
With External 4.096V Reference
Applied to REFCOMP (Note 12)
VDD = 4.75V to 5.25V, fS ≤ 400kHz
±2
±4
LSB
±4
±8
LSB
±0.5
±1
LSB
Unipolar Gain Error
Gain = 1 (PGA = 1)
Gain = 2 (PGA = 0)
With External 2.5V Reference
Applied to REFCOMP
l
VDD = 2.7V to 5.5V, fS ≤ 250kHz
l
Bipolar Gain Error
Gain = 1 (PGA = 1)
Gain = 2 (PGA = 0)
With External 2.5V Reference
Applied to REFCOMP
l
VDD = 2.7V to 5.5V, fS ≤ 250kHz
l
Full-Scale Error Temperature Coefficient
±1
±3
±2
±6
±1
±3
±2
±6
15
±1.5 ±8
LSB
±3 ±16
LSB
±1.5 ±8
LSB
±3 ±16
LSB
15
ppm/°C
ANALOG INPUT The l denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. (Notes 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)
2.7V ≤ VDD ≤ 5.5V, REFCOMP ≤ VDD
0 – REFCOMP
V
0 – REFCOMP/2
V
± REFCOMP/2
V
± REFCOMP/4
V
IIN
Analog Input Leakage Current
l
±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
50
150
ns
tS(MUX) Multiplexer Settling Time (Includes tACQ)
50
150
ns
tAP
Sample-and-Hold Aperture Delay Time
VDD = 5V
– 0.5
ns
tjitter
Sample-and-Hold Aperture Delay Time Jitter VDD = 5V
2
psRMS
CMRR Analog Input Common Mode Rejection Ratio
60
dB
DYNAMIC ACCURACY TA = 25°C. (Notes 5)
SYMBOL PARAMETER
CONDITIONS
S/(N + D) Signal-to-Noise Plus Distortion Ratio
40kHz Input Signal
THD
Total Harmonic Distortion
40kHz Input Signal, First 5 Harmonics
SFDR
Spurious Free Dynamic Range
40kHz Input Signal
MIN
TYP
72.5
– 80
–85
MAX
UNITS
dB
dB
dB
18523fa
3
Share Link: 