LTC2435-1IGN#TRPBF Linear Technology, LTC2435-1IGN#TRPBF Datasheet - Page 5
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LTC2435-1IGN#TRPBF
Manufacturer Part Number
LTC2435-1IGN#TRPBF
Description
IC ADC DIFF I/REF 20BIT 16-SSOP
Manufacturer
Linear Technology
Datasheet
1.LTC2435-1CGN.pdf
(40 pages)
Specifications of LTC2435-1IGN#TRPBF
Number Of Bits
20
Sampling Rate (per Second)
13.75
Data Interface
MICROWIRE™, Serial, SPI™
Number Of Converters
2
Power Dissipation (max)
1mW
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-SSOP (0.150", 3.90mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
SYMBOL
f
t
t
t
f
D
f
t
t
t
t
t
t2
t3
t4
t
t
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All voltage values are with respect to GND.
Note 3: V
V
V
Note 4: F
source with f
Note 5: Guaranteed by design, not subject to test.
Note 6: Integral nonlinearity is defined as the deviation of a code from
a straight line passing through the actual endpoints of the transfer
curve. The deviation is measured from the center of the quantization
band.
Note 7: F
(external oscillator) for the LTC2435 or f
LTC2435-1.
TI I G CHARACTERISTICS
range, otherwise specifications are at T
EOSC
HEO
LEO
CONV
ISCK
ESCK
LESCK
HESCK
DOUT_ISCK
DOUT_ESCK
1
KQMAX
KQMIN
t
t
5
6
REF
IN
ISCK
W U
= IN
= REF
+
O
O
CC
– IN
pin tied to GND or to V
= 0V (internal oscillator) or f
+
= 2.7 to 5.5V unless otherwise specified.
– REF
EOSC
–
PARAMETER
External Oscillator Frequency Range
External Oscillator High Period
External Oscillator Low Period
Conversion Time (LTC2435)
Conversion Time (LTC2435-1)
Internal SCK Frequency
Internal SCK Duty Cycle
External SCK Frequency Range
External SCK Low Period
External SCK High Period
Internal SCK 24-Bit Data Output Time Internal Oscillator (Notes 10, 12), LTC2435
External SCK 24-Bit Data Output Time (Note 9)
CS ↓ to SDO Low Z
CS ↑ to SDO High Z
CS ↓ to SCK ↓
CS ↓ to SCK ↑
SCK ↓ to SDO Valid
SDO Hold After SCK ↓
SCK Set-Up Before CS ↓
SCK Hold After CS ↓
, V
INCM
= 153600Hz unless otherwise specified.
–
, V
REFCM
= (IN
+
= (REF
+ IN
CC
–
)/2.
+
or to external conversion clock
+ REF
EOSC
EOSC
–
A
)/2;
= 153600Hz ±2%
= 25°C. (Note 3)
= 139800Hz ±2% for the
CONDITIONS
F
F
External Oscillator (Note 11)
F
External Oscillator (Note 11)
Internal Oscillator (Note 10), LTC2435
Internal Oscillator (Note 10), LTC2435-1
External Oscillator (Notes 10, 11)
(Note 10)
(Note 9)
(Note 9)
(Note 9)
Internal Oscillator (Notes 10, 12), LTC2435-1
External Oscillator (Notes 10, 11)
(Note 10)
(Note 9)
(Note 5)
O
O
O
= 0V
= V
= 0V
The
CC
●
denotes specifications which apply over the full operating temperature
Note 8: F
(external oscillator).
Note 9: The converter is in external SCK mode of operation such that
the SCK pin is used as digital input. The frequency of the clock signal
driving SCK during the data output is f
Note 10: The converter is in internal SCK mode of operation such that
the SCK pin is used as digital output. In this mode of operation the
SCK pin has a total equivalent load capacitance C
Note 11: The external oscillator is connected to the F
oscillator frequency, f
Note 12: The converter uses the internal oscillator.
F
Note 13: The output noise includes the contribution of the internal
calibration operations.
Note 14: Refer to Offset Accuracy and Drift in the Applications
Information section.
O
= 0V or F
O
= V
O
= V
CC
(internal oscillator) or f
CC
.
LTC2435/LTC2435-1
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
EOSC
, is expressed in kHz.
0.25
0.25
65.6
78.7
1.22
1.34
MIN
250
250
72
45
50
15
50
5
0
0
0
10278/f
10278/f
192/f
24/f
ESCK
EOSC
ESCK
EOSC
f
EOSC
EOSC
EOSC
66.9
80.3
73.5
19.2
17.5
1.25
1.37
TYP
and is expressed in kHz.
(in kHz)
= 128000Hz ±2%
(in kHz)
/8
(in kHz)
(in kHz)
LOAD
O
2000
2000
MAX
68.3
81.9
1.28
1.40
200
200
200
200
200
220
= 20pF.
pin. The external
75
55
50
UNITS
24351fb
5
kHz
kHz
kHz
kHz
kHz
ms
ms
ms
ms
ms
ms
ms
ms
ms
μs
μs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%