LTC1850 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1850' PDF : 28 Pages View PDF
LTC1850/LTC1851
DY A IC ACCURACY (Note 5)
SYMBOL PARAMETER
CONDITIONS
SNR
Signal-to-Noise Ratio
Unipolar, PGA = 0
Unipolar, PGA = 1
Bipolar, PGA = 0
Bipolar, PGA = 1
47kHz Input Signal
S/(N+D)
Signal-to-(Noise + Distortion) Ratio
Unipolar, PGA = 0
Unipolar, PGA = 1
Bipolar, PGA = 0
Bipolar, PGA = 1
47kHz Input Signal
THD
Total Harmonic Distortion
Unipolar, PGA = 0
Unipolar, PGA = 1
Bipolar, PGA = 0
Bipolar, PGA = 1
47kHz Input Signal,
First 5 Harmonics
SFDR
Spurious-Free Dynamic Range
Unipolar, PGA = 0
Unipolar, PGA = 1
Bipolar, PGA = 0
Bipolar, PGA = 1
47kHz Input Signal
UU
U
I TER AL REFERE CE TA = 25°C. (Notes 5, 6)
PARAMETER
CONDITIONS
REFOUT Output Voltage
REFOUT Output Temperature Coefficient
REFOUT Line Regulation
IOUT = 0
IOUT = 0
Reference Buffer Gain
REFCOMP Output Voltage
VREFCOMP/VREFIN
External 2.5V Reference
Internal 2.5V Reference
REFCOMP Impedance
REFIN = VDD
LTC1850
MIN TYP MAX
61.6
61.7
61.6
61.7
61.0
61.0
61.0
61.2
– 76
– 78
– 81
– 80
74
80
84
82
LTC1851
MIN TYP MAX
71
72
71
72
70
71
71
72
– 80
– 82
– 87
– 86
82
86
90
88
MIN
2.48
1.636
4.090
4.060
TYP
2.50
±15
0.01
1.638
4.096
4.096
6.4
MAX
2.52
1.640
4.100
4.132
UNITS
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
UNITS
V
ppm/°C
LSB/V
V/ V
V
V
kΩ
DIGITAL I PUTS A D DIGITAL OUTPUTS 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
VIH
VIL
IIN
CIN
VOH
VOL
IOZ
COZ
ISOURCE
ISINK
High Level Input Voltage
Low Level Input Voltage
Digital Input Current
Digital Input Capacitance
VDD = 5.25V
VDD = 4.75V
VIN = 0V to VDD
High Level Output Voltage
Low Level Output Voltage
Hi-Z Output Leakage D11 to D0, ADOUT, A1OUT, A2OUT, DIFFOUT
Hi-Z Capacitance D11 to D0, ADOUT, A1OUT, A2OUT, DIFFOUT
Output Source Current
Output Sink Current
VDD = 4.75V, IO = –10µA
VDD = 4.75V, IO = – 200µA
VDD = 4.75V, IO = 160µA
VDD = 4.75V, IO = 1.6mA
VOUT = 0V to VDD, CS High
CS High (Note 9)
VOUT = 0V
VOUT = VDD
q 2.4
q
0.8
q
±5
2
4.5
q 4.0
0.05
q
0.10 0.4
q
±10
q
15
– 20
30
V
V
µA
pF
V
V
V
V
µA
pF
mA
mA
18501f
4
Share Link: 
