
LTC2435/LTC2435-1
6
24351fc
Typical perForMance characTerisTics
Total Unadjusted Error (VCC = 5V,
VREF = 5V)
Total Unadjusted Error (VCC = 5V,
VREF = 2.5V)
Total Unadjusted Error (VCC =
2.7V, VREF = 2.5V)
Integral Nonlinearity (VCC = 5V,
VREF = 5V)
Integral Nonlinearity (VCC = 5V,
VREF = 2.5V)
Integral Nonlinearity (VCC = 2.7V,
VREF = 2.5V)
Noise Histogram (Output Rate =
15Hz, VCC = 5V, VREF = 5V)
Noise Histogram (Output Rate =
15Hz, VCC = 2.7V, VREF = 2.5V)
INPUT VOLTAGE (V)
–2.5
TUE
(ppm
OF
V
REF
)
–340
–345
–350
–355
–360
1.5
2435 G01
–1.5
–0.5
0.5
2.5
FO = GND
VCC = 5V
VREF = 5V
VINCM = VINCM = 2.5V
TA = –45°C
TA = 25°C
TA = 85°C
INPUT VOLTAGE (V)
–1.25
TUE
(ppm
OF
V
REF
)
–680
–685
–690
–695
–700
–705
–710
–0.75
–0.25
0.25
0.75
2435 G02
1.25
FO = GND
VCC = 5V
VREF = 2.5V
VINCM = VINCM = 1.25V
TA = –45°C
TA = 25°C
TA = 85°C
–320
–330
–340
–350
–360
TUE
(ppm
OF
V
REF
)
FO = GND
VCC = 2.7V
VREF = 2.5V
VINCM = VINCM = 1.25V
INPUT VOLTAGE (V)
–1.25
–0.75
–0.25
0.25
0.75
2435 G03
1.25
TA = –45°C
TA = 25°C
TA = 85°C
10
8
6
4
2
0
–2
–4
–6
–8
–10
INPUT VOLTAGE (V)
–2.5
–1.5
–0.5
0.5
1.5
2435 G04
2.5
FO = GND
VCC = 5V
VREF = 5V
VINCM = VINCM = 2.5V
TA = –45°C
TA = 25°C
TA = 85°C
INL
(ppm
OF
V
REF
)
3
2
1
0
–1
–2
–3
INL
(ppm
OF
V
REF
)
FO = GND
VCC = 5V
VREF = 2.5V
VINCM = VINCM = 1.25V
TA = –45°C
TA = 25°C
TA = 85°C
INPUT VOLTAGE (V)
–1.25
–0.75
–0.25
0.25
0.75
2435 G05
1.25
10
8
6
4
2
0
–2
–4
–6
–8
–10
INL
(ppm
of
V
REF
)
FO = GND
VCC = 2.7V
VREF = 2.5V
VINCM = VINCM = 1.25V
INPUT VOLTAGE (V)
–1.25
–0.75
–0.25
0.25
0.75
2435 G06
1.25
TA = –45°C
TA = 25°C
TA = 85°C
OUTPUT CODE(ppm OF VREF)
–330
NUMBER
OF
READINGS
(%)
–328
–326 –325
–321
2435 G07
–329
–327
–324–323 –322
30
25
20
15
10
5
0
GAUSSIAN
DISTRIBUTION
m = –325.4ppm
σ = 0.79ppm
10,000 CONSECUTIVE READINGS
VCC = 5V
VREF = 5V
VIN = 0V
VINCM = 2.5V
FO = GND
TA = 25°C
GAUSSIAN
DISTRIBUTION
m = –365ppm
σ = 1.55ppm
10,000 CONSECUTIVE READINGS
VCC = 2.7V
VREF = 2.5V
VIN = 0V
VINCM = 2.5V
FO = GND
TA = 25°C
OUTPUT CODE (ppm OF VREF)
–372 –370 –368 –366 –364 –362 –360 –358
14
12
10
8
6
4
2
0
2435 G08
NUMBER
OF
READINGS
(%)