LTC1851 Linear Technology, LTC1851 Datasheet - Page 4

• Manufacturer Part Number: LTC1851
• Description: 1.25Msps Sampling ADCs
• Manufacturer: Linear Technology

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SYMBOL
SNR
S/(N+D)
THD
SFDR
I TER AL REFERE CE
PARAMETER
REFOUT Output Voltage
REFOUT Output Temperature Coefficient
REFOUT Line Regulation
Reference Buffer Gain
REFCOMP Output Voltage
REFCOMP Impedance
LTC1850/LTC1851
DIGITAL I PUTS A D DIGITAL OUTPUTS
DY A IC ACCURACY
4
full operating temperature range, otherwise specifications are at T
SYMBOL
V
V
I
C
V
V
I
C
I
I
U
IN
OZ
SOURCE
SINK
IH
IL
IN
OH
OL
OZ
U W
U
PARAMETER
Signal-to-Noise Ratio
Unipolar, PGA = 0
Unipolar, PGA = 1
Bipolar, PGA = 0
Bipolar, PGA = 1
Signal-to-(Noise + Distortion) Ratio
Unipolar, PGA = 0
Unipolar, PGA = 1
Bipolar, PGA = 0
Bipolar, PGA = 1
Total Harmonic Distortion
Unipolar, PGA = 0
Unipolar, PGA = 1
Bipolar, PGA = 0
Bipolar, PGA = 1
Spurious-Free Dynamic Range
Unipolar, PGA = 0
Unipolar, PGA = 1
Bipolar, PGA = 0
Bipolar, PGA = 1
PARAMETER
High Level Input Voltage
Low Level Input Voltage
Digital Input Current
Digital Input Capacitance
High Level Output Voltage
Low Level Output Voltage
Hi-Z Output Leakage D11 to D0, AD
Hi-Z Capacitance D11 to D0, AD
Output Source Current
Output Sink Current
U
U
U
OUT
(Note 5)
T
A
, A1
OUT
= 25 C. (Notes 5, 6)
, A1
OUT
OUT
, A2
CONDITIONS
47kHz Input Signal
47kHz Input Signal
47kHz Input Signal,
First 5 Harmonics
47kHz Input Signal
, A2
OUT
CONDITIONS
I
I
V
External 2.5V Reference
Internal 2.5V Reference
REFIN = V
OUT
OUT
, DIFF
OUT
REFCOMP
, DIFF
= 0
= 0
OUT
/V
DD
OUT
REFIN
A
= 25 C. (Note 5)
CONDITIONS
V
V
V
V
V
V
V
V
CS High (Note 9)
V
V
DD
DD
IN
DD
DD
DD
DD
OUT
OUT
OUT
= 0V to V
= 5.25V
= 4.75V
= 4.75V, I
= 4.75V, I
= 4.75V, I
= 4.75V, I
= 0V to V
= 0V
= V
DD
The
MIN
DD
O
O
O
O
DD
= –10 A
= – 200 A
= 160 A
= 1.6mA
denotes the specifications which apply over the
, CS High
LTC1850
61.6
61.7
61.6
61.7
61.0
61.0
61.0
61.2
TYP
–76
–78
–81
–80
74
80
84
82
MAX
1.636
4.090
4.060
2.48
MIN
MIN
MIN
2.4
4.0
1.638
4.096
4.096
2.50
0.01
TYP
6.4
LTC1851
15
TYP
–80
–82
–87
–86
0.05
0.10
TYP
– 20
71
72
71
72
70
71
71
72
82
86
90
88
4.5
30
2
1.640
4.100
4.132
MAX
MAX
2.52
MAX
0.8
0.4
15
10
5
ppm/ C
UNITS
UNITS
LSB/V
UNITS
18501f
V/V
k
mA
mA
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
pF
pF
V
V
V
V
V
A
V
V
V
V
A