ltc2484 Linear Technology Corporation, ltc2484 Datasheet - Page 2

• Manufacturer Part Number: ltc2484
• Description: 24-bit Delta Sigma Adc With Easy Drive Input Current Cancellation
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS ( OR AL SPEED)
ABSOLUTE AXI U RATI GS
(Notes 1, 2)
Supply Voltage (V
Analog Input Voltage to GND ....... – 0.3V to (V
Reference Input Voltage to GND .. – 0.3V to (V
Digital Input Voltage to GND ........ – 0.3V to (V
Digital Output Voltage to GND ..... – 0.3V to (V
Operating Temperature Range
LTC2484C ................................................... 0°C to 70°C
LTC2484I ................................................ – 40°C to 85°C
Storage Temperature Range ................ – 65°C to 125°C
LTC2484
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 Coefficient
over the full operating temperature range, otherwise specifications are T
2
CC
W
) to GND...................... – 0.3V to 6V
W W
CONDITIONS
0.1 ≤ 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
5V ≤ V
T
A
= 27°C
CC
CC
CC
CC
REF
CC
REF
REF
REF
REF
REF
REF
CC
≤ 5.5V, V
≤ 5.5V, V
≤ 5.5V, V
≤ 5.5V, V
≤ V
≤ 5.5V, V
≤ 5.5V, V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
CC
U
CC
CC
CC
CC
CC
CC
, –FS ≤ V
, GND ≤ IN
, GND ≤ IN
, IN
, IN
, IN
, IN
CC
CC
CC
CC
REF
REF
REF
REF
REF
REF
+
+
+
+
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
= 2.5V, V
= 5V, GND ≤ IN
= 5V, V
= 5V, V
= 0.75V
= 0.75V
= 0.75V
= 0.75V
U
= 2.5V, V
= 2.5V, V
IN
≤ +FS (Note 5)
+
+
IN(CM)
IN(CM)
= IN
= IN
REF
REF
REF
REF
IN(CM)
W
IN(CM)
IN(CM)
, IN
, IN
, IN
, IN
–
–
≤ V
≤ V
= 2.5V (Note 6)
= 2.5V
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
*The temperature grade is indicated by a label on the shipping container.
–
–
–
–
–
= 1.25V
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking:
= 0.25V
= 0.25V
= 0.25V
= 0.25V
CC
CC
= IN
= 1.25V (Note 6)
= 1.25V
ORDER PART NUMBER
A
= 25°C. (Notes 3, 4)
(Note 14)
+
≤ V
LTC2484CDD
LTC2484IDD
REF
REF
REF
REF
CC
(Note 13)
10-LEAD (3mm × 3mm) PLASTIC DFN
V
V
SDI
REF
IN
IN
CC
+
–
EXPOSED PAD (PIN 11) IS GND
T
MUST BE SOLDERED TO PCB
http://www.linear.com/leadfree/
The
JMAX
1
2
3
4
5
●
●
●
●
●
= 125°C, θ
●
DD PACKAGE
TOP VIEW
MIN
denotes specifications which apply
24
11
JA
U
= 43°C/ W
DD PART MARKING*
TYP
420
0.5
0.1
0.1
0.6
1.4
10
15
2
1
10
9
8
7
6
F
SCK
GND
SDO
CS
O
MAX
LBSS
2.5
W
10
25
25
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
V
V
ppm of
ppm of
µV
UNITS
mV/°C
REF
REF
U
nV/°C
2484fa
RMS
Bits
mV
REF
REF
REF
/°C
REF
/°C
REF
REF
REF
µV