LTC2488 LINER [Linear Technology], LTC2488 Datasheet - Page 2

• Manufacturer Part Number: LTC2488
• Description: 16-Bit 2-/4-Channel ?? ADC with Easy Drive Input Current Cancellation
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
LTC2488
(Notes 1, 2)
Supply Voltage (V
Analog Input Voltage
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
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
2
(CH0 to CH3, COM) ..................–0.3V to (V
REF
LTC2488C ................................................ 0°C to 70°C
LTC2488I ............................................. –40°C to 85°C
+
, REF
–
................................–0.3V to (V
CC
) ................................... –0.3V to 6V
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
2.7V < V
GND ≤ IN
CC
CC
CC
REF
CC
REF
REF
REF
REF
REF
REF
CC
CC
+
≤ 5.5V, V
≤ 5.5V, V
≤ 5.5V, V
= IN
≤ 5.5V, V
≤ 5.5V, V
< 5.5V, 2.5V ≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
–
CC
CC
CC
CC
CC
CC
CC
≤ V
, –FS ≤ V
, GND ≤ IN
, GND ≤ IN
, IN
, IN
, IN
, IN
REF
REF
REF
A
CC
REF
REF
CC
CC
CC
CC
= 25°C. (Notes 3, 4)
+
+
+
+
= 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)
The
IN
REF
+
+
≤ +FS (Note 5)
IN(CM)
IN(CM)
= IN
= IN
REF
REF
REF
REF
IN(CM)
≤ V
●
IN(CM)
IN(CM)
, IN
, IN
, IN
, IN
denotes the specifi cations which apply over the full operating
–
–
CC
= 2.5V (Note 6)
= 2.5V
≤ V
≤ V
,
–
–
–
–
= 1.25V
= 0.25V
= 0.25V
= 0.75V
= 0.75V
PACKAGE/ORDER INFORMATION
CC
CC
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.
= 1.25V (Note 6)
= 1.25V
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking:
(Note 14)
ORDER PART NUMBER
REF
REF
REF
REF
LTC2488CDE
LTC2488IDE
EXPOSED PAD (PIN 15) IS GND, MUST BE SOLDERED TO PCB
14-LEAD (4mm × 3mm) PLASTIC DFN
●
●
●
●
COM
SDO
GND
SCK
SDI
CS
F
O
http://www.linear.com/leadfree/
T
JMAX
MIN
1
2
3
4
5
6
7
16
= 125°C, θ
DE PACKAGE
15
TYP
JA
0.5
0.1
0.1
0.6
10
15
15
15
2
1
= 37°C/W
DE PART MARKING*
14
13
12
11
10
9
8
REF
REF
V
CH3
CH2
CH1
CH0
CC
MAX
20
32
32
5
–
+
2488
2488
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
2488f
RMS
Bits
REF
REF
REF
/°C
REF
/°C
REF
REF
REF
µV