LTC2482 Datasheet, PDF (2/32 Pages) Linear Technology – 16-Bit ΔΣ ADC with Easy Drive Input Current Cancellation

LTC2482
ABSOLUTE MAXIMUM RATINGS
(Notes 1, 2)
Supply Voltage (V_CC) to GND ...................... –0.3V to 6V
Analog Input Voltage to GND ....... –0.3V to (V_CC + 0.3V)
Reference Input Voltage to GND .. –0.3V to (V_CC + 0.3V)
Digital Input Voltage to GND ........ –0.3V to (V_CC + 0.3V)
Digital Output Voltage to GND...... –0.3V to (V_CC + 0.3V)
Operating Temperature Range
LTC2482C ............................................... 0°C to 70°C
LTC2482I ............................................ –40°C to 85°C
Storage Temperature Range.................. –65°C to 125°C
PIN CONFIGURATION
TOP VIEW
*GND 1
V_CC 2
V_REF 3
IN⁺ 4
IN^– 5
10 f_O
9 SCK
11
8 GND
7 SDO
6 CS
DD PACKAGE
10-LEAD (3mm s 3mm) PLASTIC DFN
T_JMAX = 125°C, θ_JA = 160°C/W
EXPOSED PAD (PIN #) IS GND, MUST BE SOLDERED TO PCB
*PIN 1 MAY BE DRIVEN WITH A DIGITAL SIGNAL IN ORDER TO
REMAIN PIN COMPATIBLE WITH THE LTC2480/LTC2482
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2482CDD#PBF
LTC2482CDD#TRPBF
LBSQ
10-Lead (3mm × 3mm) Plastic DFN 0°C to 70°C
LTC2482IDD#PBF
LTC2482IDD#TRPBF
LBSQ
10-Lead (3mm × 3mm) Plastic DFN –40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS (NORMAL SPEED) The l denotes the specifications which
apply over the full operating temperature range, otherwise specifications are at T_A = 25°C. (Notes 3, 4)
PARAMETER
CONDITIONS
MIN TYP MAX
UNITS
Resolution (No Missing Codes) 0.1 ≤ V_REF ≤ V_CC, –FS ≤ V_IN ≤ +FS (Note 5)
l 16
Bits
Integral Nonlinearity
5V ≤ V_CC ≤ 5.5V, V_REF = 5V, V_IN(CM) = 2.5V (Note 6)
l
2.7V ≤ V_CC ≤ 5.5V, V_REF = 2.5V, V_IN(CM) = 1.25V (Note 6)
Offset Error
2.5V ≤ V_REF ≤ V_CC, GND ≤ IN⁺ = IN^– ≤ V_CC (Note 14)
l
Offset Error Drift
2.5V ≤ V_REF ≤ V_CC, GND ≤ IN⁺ = IN^– ≤ V_CC
Positive Full-Scale Error
2.5V ≤ V_REF ≤ V_CC, IN⁺ = 0.75V_REF, IN^– = 0.25V_REF
l
Positive Full-Scale Error Drift
2.5V ≤ V_REF ≤ V_CC, IN⁺ = 0.75V_REF, IN^– = 0.25V_REF
Negative Full-Scale Error
2.5V ≤ V_REF ≤ V_CC, IN⁺ = 0.75V_REF, IN^– = 0.25V_REF
l
Negative Full-Scale Error Drift
2.5V ≤ V_REF ≤ V_CC, IN⁺ = 0.75V_REF, IN^– = 0.25V_REF
2
20
ppm of V_REF
1
ppm of V_REF
0.5
5
μV
10
nV/°C
32
ppm of V_REF
0.1
ppm of
V_REF/°C
32
ppm of V_REF
0.1
ppm of
V_REF/°C
Total Unadjusted Error
Output Noise
5V ≤ V_CC ≤ 5.5V, V_REF = 2.5V, V_IN(CM) = 1.25V
5V ≤ V_CC ≤ 5.5V, V_REF = 5V, V_IN(CM) = 2.5V
2.7V ≤ V_CC ≤ 5.5V, V_REF = 2.5V, V_IN(CM) = 1.25V
5V ≤ V_CC ≤ 5.5V, V_REF = 5V, GND ≤ IN^– = IN⁺ ≤ V_CC (Note 13)
15
ppm of V_REF
ppm of V_REF
ppm of V_REF
0.6
μV_RMS
2482fb
2