LTC2492 Linear Technology, LTC2492 Datasheet - Page 2

• Manufacturer Part Number: LTC2492
• Description: 24-Bit 2-/4-Channel ADC
• Manufacturer: Linear Technology

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ABSOLUTE MAXIMUM RATINGS
LTC2492
(Notes 1, 2)
Supply Voltage (V
Analog Input Voltage
REF
Digital Input Voltage ..................... – 0.3V to (V
Digital Output Voltage .................. – 0.3V to (V
Operating Temperature Range
Storage Temperature Range ...................– 65°C to 150°C
ORDER INFORMATION
LEAD FREE FINISH
LTC2492CDE#PBF
LTC2492IDE#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
ELECTRICAL CHARACTERISTICS (NORMAL SPEED)
apply over the full operating temperature range, otherwise specifi cations are at T
PARAMETER
Resolution (No Missing Codes)
Integral Nonlinearity
Offset Error
Offset Error Drift
Positive Full-Scale Error
Positive Full-Scale Error Drift
Negative Full-Scale Error
Negative Full-Scale Error Drift
Total Unadjusted Error
Output Noise
Internal PTAT Signal
Internal PTAT Temperature Coeffi cient
2
(CH0 to CH3, COM) ................. – 0.3V to (V
LTC2492C ................................................ 0°C to 70°C
LTC2492I..............................................– 40°C to 85°C
+
, REF
–
.................................. – 0.3V to (V
CC
) ...................................– 0.3V to 6V
TAPE AND REEL
LTC2492CDE#TRPBF
LTC2492IDE#TRPBF
CONDITIONS
0.1V ≤ V
5V ≤ V
2.7V ≤ V
2.5V ≤ V
2.5V ≤ V
2.5V ≤ V
2.5V ≤ V
2.5V ≤ V
2.5V ≤ V
5V ≤ V
5V ≤ V
2.7V ≤ V
5.5V < V
GND ≤ IN
T
A
= 27°C (Note 14)
CC
CC
CC
REF
CC
REF
REF
REF
REF
REF
REF
CC
CC
≤ 5.5V, V
≤ 5.5V, V
≤ 5.5V, V
+
< 2.7V, 2.5V ≤ V
= IN
≤ 5.5V, V
≤ 5.5V, V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
http://www.linear.com/leadfree/
–
CC
CC
CC
CC
CC
CC
CC
PART MARKING*
2492
2492
≤ V
, –FS ≤ V
, GND ≤ IN
, GND ≤ IN
, IN
, IN
, IN
, IN
REF
REF
REF
http://www.linear.com/tapeandreel/
CC
CC
CC
CC
REF
REF
CC
+
+
+
+
= 5V, V
= 2.5V, V
= 5V, V
= 0.75V
= 0.75V
= 0.25V
= 0.25V
(Note 13)
= 2.5V, V
= 2.5V, V
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
IN
REF
+
+
IN(CM)
IN(CM)
≤ +FS (Note 5)
= IN
= IN
REF
REF
REF
REF
IN(CM)
≤ V
IN(CM)
IN(CM)
, IN
, IN
, IN
, IN
–
–
CC
= 2.5V (Note 6)
= 2.5V
≤ V
≤ V
,
–
–
–
–
= 1.25V
= 0.25V
= 0.25V
= 0.75V
= 0.75V
PIN CONFIGURATION
= 1.25V (Note 6)
= 1.25V
CC
CC
(Note 14)
PACKAGE DESCRIPTION
14-Lead (4mm × 3mm) Plastic DFN
14-Lead (4mm × 3mm) Plastic DFN
REF
REF
REF
REF
EXPOSED PAD (PIN 15) IS GND, MUST BE SOLDERED TO PCB
A
= 25°C. (Notes 3, 4)
14-LEAD (4mm 3mm) PLASTIC DFN
COM
●
●
●
●
GND
SDO
SCK
SDI
CS
F
O
T
JMAX
The
1
2
3
4
5
6
7
27.8
MIN
24
= 125°C, θ
DE PACKAGE
●
denotes the specifi cations which
15
28.0
93.5
JA
TYP
0.5
0.1
0.1
0.6
10
15
15
15
2
1
= 37°C/W
14
13
12
11
10
9
8
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
REF
REF
V
CH3
CH2
CH1
CH0
CC
MAX
28.2
2.5
10
25
25
–
+
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
μV
UNITS
REF
REF
nV/°C
μV/°C
2492fb
RMS
Bits
mV
REF
REF
REF
/°C
REF
/°C
REF
REF
REF
μV