Related Parts .....................................................................................................................28
Rev A
2
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LTC2662
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
TOP VIEW
FAULT
IOV
CC
Analog Supply Voltage (V
CC
) ....................... –0.3V to 6V
Digital I/O Voltage (IOV
CC
) ........................... –0.3V to 6V
Negative Supply Voltage (V
–
) ...................–16.5V to 0.3V
Positive Supply Voltage (V
+
) ............–0.3V to (V
–
+ 36V)
Output Supply Voltages
(V
DD0
, V
DD1
, V
DD2
, V
DD3
, V
DD4
) ......–0.3V to (V
+
+ 0.3V)
OUT0, OUT1, OUT2,
OUT3, OUT4 ....................... (V
–
– 0.3V) to (V
DDX
+ 0.3V)
MUX ....................................... (V
–
– 0.3V) to (V
+
+ 0.3V)
REF, REFCOMP, FSADJ ....–0.3V to Min (V
CC
+ 0.3V, 6V)
CS/LD,
SCK, SDI,
LDAC, CLR,
TGP .............. –0.3V to 6V
FAULT
........................................................... –0.3V to 6V
SDO .............................. –0.3V to Min (I
OVCC
+ 0.3V, 6V)
Operating Junction Temperature (T
J
) Range
LTC2662C ................................................ 0°C to 70°C
LTC2662I .............................................–40°C to 85°C
LTC2662H .......................................... –40°C to 125°C
Maximum Junction Temperature……………...… 150°C
Storage Temperature Range .................. –65°C to 150°C
32 31 30 29 28 27 26 25
GND 1
TGP 2
SDI 3
SDO 4
SCK 5
CS/LD
6
LDAC
7
GND 8
9 10 11 12 13 14 15 16
REFLO
REFCOMP
REF
FSADJ
GND
OUT4
V
CC
V
–
33
GND
24 OUT0
23 OUT1
22 V
DD1
21 V
DD2
20 OUT2
19 OUT3
18 V
DD3
17 V
DD4
UH PACKAGE
32-LEAD (5mm
×
5mm) PLASTIC QFN
T
JMAX
= 150°C,
θ
JA
= 44°C/W,
θ
JC
= 7.3°C/W
EXPOSED PAD (PIN 33) IS GND, MUST BE SOLDERED TO PCB
V
DD0
MUX
GND
CLR
V
+
V
–
Rev A
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3
LTC2662
ORDER INFORMATION
LTC2662
C
UH
16
#TR PBF
LEAD FREE DESIGNATOR
PBF = Lead Free
TAPE AND REEL
TR = 2500-Piece Tape and Reel
RESOLUTION
16 = 16-Bit
12 = 12-Bit
PACKAGE TYPE
UH = 32-Lead QFN
TEMPERATURE GRADE
C = Commercial Temperature Range (0°C to 70°C)
I = Industrial Temperature Range (–40°C to 85°C)
H = Automotive Temperature Range (–40°C to 125°C)
PRODUCT PART NUMBER
Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications.
Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
PRODUCT SELECTION GUIDE
LEAD FREE FINISH
LTC2662CUH-16#PBF
LTC2662IUH-16#PBF
LTC2662HUH-16#PBF
LTC2662CUH-12#PBF
LTC2662IUH-12#PBF
LTC2662HUH-12#PBF
TAPE AND REEL
LTC2662CUH-16#TRPBF
LTC2662IUH-16#TRPBF
LTC2662HUH-16#TRPBF
LTC2662CUH-12#TRPBF
LTC2662IUH-12#TRPBF
LTC2662HUH-12#TRPBF
PART MARKING
266216
266216
266216
266212
266212
266212
PACKAGE DESCRIPTION
32-Lead (5mm × 5mm) QFN
32-Lead (5mm × 5mm) QFN
32-Lead (5mm × 5mm) QFN
32-Lead (5mm × 5mm) QFN
32-Lead (5mm × 5mm) QFN
32-Lead (5mm × 5mm) QFN
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
Rev A
4
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LTC2662
The
l
denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at T
J
= 25°C. V
CC
= IOV
CC
= 5V; V
–
= –5V; V
DD0/1/2/3/4
= 5V, V
+
= 5V,
FSADJ = V
CC,
V
(REF)
= 1.25V external unless otherwise specified.
LTC2662-12
SYMBOL PARAMETER
DC Performance All Ranges (Note 4)
Resolution
Monotonicity
DNL
INL
I
OS
GE
Differential Nonlinearity
Integral Nonlinearity
Offset Error Current
V
OS
Temperature Coefficient
Gain Error (Note 4)
300mA, 200mA, 100mA Ranges
50mA, 25mA Ranges
12.5mA, 6.25mA, 3.125mA Ranges
FSADJ = V
CC
l
l
l
l
l
l
l
ELECTRICAL CHARACTERISTICS
CONDITIONS
LTC2662-16
MIN
16
16
TYP
MAX
UNITS
Bits
Bits
±0.2
±12
±0.1
±10
±0.3
±0.4
±0.7
30
±0.4
±0.5
±0.8
±2.2
±0.6
±3.7
±0.09
±0.01
±14
±1
±64
±0.4
±0.9
±1.2
±1.5
±1.4
±1.7
±2
LSB
LSB
%FSR
ppm/°C
%FSR
%FSR
%FSR
ppm/°C
%FSR
%FSR
%FSR
LSB
LSB
LSB
LSB
LSB
LSB
MIN
12
12
TYP
MAX
(Note 3)
(Note 3)
(Note 3)
(Note 3)
l
l
l
l
±0.5
±4
±0.4
±10
±0.9
±1.2
±1.5
±30
±1.4
±1.7
±2
±0.15
±0.05
±0.25
±0.01
±0.001
±1
Gain Temperature Coefficient
TUE
Total Unadjusted Error (Note 4) 300mA, 200mA, 100mA Ranges
50mA, 25mA Ranges
12.5mA, 6.25mA, 3.125mA Range
Power Supply Rejection Ratio
Range = 100mA; I
OUT
= 50mA
V
CC
: 4.75V to 5.25V
V
DDX
: 2.85V to 3.15V
V
DDX
: 4.75V to 5.25V
V
+
: 4.75V to 5.25V
V
–
: –5.25V to –4.75V
Due to 200mW Change in Dissipated Power
PSRR
DC Crosstalk (Note 5)
SYMBOL
V
DROPOUT
PARAMETER
Dropout Voltage (V
DDX
– V
OUTX
)
CONDITIONS
200mA Range; (V
DDX
– V
–
) = 4.75V
200mA Range; (V
DDX
– V
–
) = 2.85V
200mA Range; (V
DDX
– V
–
) = 33V
300mA Range; (V
DDX
– V
–
) = 4.75V
300mA Range; (V
DDX
– V
–
) = 2.85V
I
OUTX
= Hi-Z, 2.85V ≤ (V
DDX
– V
–
) ≤ 33V
Span Code = 1000b, Sinking 80mA
Maximum Allowable DC Current
l
l
l
l
l
MIN
TYP
0.72
0.85
0.76
1.13
1.15
0.1
8
MAX
1
1.1
1.75
1
12
80
UNITS
V
V
V
V
V
µA
Ω
mA
μs
μs
μs
μs
µs
ms
pA•s
pA•s
nA/√Hz
nA/√Hz
nA/√Hz
nA/√Hz
Rev A
DC Performance
Hi-Z Output Leakage Current
R
PULLDOWN
I
PULLDOWN
t
SET
OUTX Switch-to-V
–
Resistance to V
–
Supply
OUTX Switch-to-V
–
Current
AC Performance
Settling Time, Full-Scale Step 3.125mA Range ±0.024% (±1LSB at 12b) (Notes 9, 12)
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