LTC2978
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
J
= 25°C. V
PWR
= V
IN_SNS
= 12V; V
DD33
, V
DD25
and REF pins floating, unless
otherwise indicated. C
VDD33
= 100nF C
VDD25
= 100nF and C
REF
= 100nF
,
.
SYMBOL
TUE
VIN_SNS
PARAMETER
V
IN_ON
, V
IN_OFF
Threshold Total
Unadjusted Error
READ_V
IN
Total Unadjusted Error
CONDITIONS
3V ≤ V
VIN_SNS
≤ 8V
V
VIN_SNS
> 8V
3V ≤ V
VIN_SNS
≤ 8V
V
VIN_SNS
> 8V
Voltage Buffered IDAC Soft-Connect Comparator Characteristics
V
OS_CMP
TUE_TS
V
VOUT_ENn
I
VOUT_ENn
Offset Voltage
Total Unadjusted Error
Output High Voltage (Note 12)
Output Sourcing Current
Output Sinking Current
I
VOUT_ENn
= –5µA, V
DD33
= 3.3V
Strong Pull-Down Enabled,
V
VOUT_ENn
= 0.4V
Internal Pull-Up Disabled,
0V ≤ V
VOUT_ENn
≤ 15V
Strong Pull-Down Enabled,
V
OUT_ENn
= 0.1V
0V ≤ V
VOUT_ENn
≤ 6V
I
VIN_EN
= –5µA, V
DD33
= 3.3V
V
IN_EN
Pull-Up Enabled, V
VIN_EN
= 1V
V
VIN_EN
= 0.4V
Internal Pull-Up Disabled,
0V ≤ V
VIN_EN
≤ 15V
0°C < T
J
< 85°C During EEPROM Write
Operations
T
J
< 85°C
l
l
l
l
l
l
ELECTRICAL CHARACTERISTICS
MIN
TYP
MAX
±2.0
±1.0
±1.5
±1.0
UNITS
%
%
%
%
mV
°C
±3
±1
11.6
–5
3
33
12.5
–6
5
50
±18
Temperature Sensor Characteristics
V
OUT
Enable Output (V
OUT_EN
[3:0]) Characteristics
14.7
–8
8
60
±1
V
µA
mA
µA
µA
V
VOUT_ENn
Pull-Up Enabled, V
VOUT_ENn
= 1V
l
l
Weak Pull-Down Enabled, V
VOUT_ENn
= 0.4V
l
Output Leakage Current
V
OUT
Enable Output (V
OUT_EN
[7:4]) Characteristics
I
VOUT_ENn
Output Sinking Current
Output Leakage Current
V
IN
Enable Output (V
IN_EN
) Characteristics
V
VIN_EN
I
VIN_EN
Output High Voltage
Output Sourcing Current
Output Sinking Current
Leakage Current
EEPROM Characteristics
Endurance
Retention
Mass_Write
(Notes 8, 11)
(Notes 8, 11)
Mass Write Operation Time (Note 9)
l
l
l
l
l
l
l
l
l
3
6
9
±1
mA
µA
V
µA
mA
µA
11.6
–5
3
12.5
–6
5
14.7
–8
8
±1
10,000
10
440
4100
Cycles
Years
ms
STORE_USER_ALL, 0°C < T
J
< 85°C During
l
EEPROM Write Operations
l
l
Digital Inputs SCL, SDA, CONTROL0, CONTROL1, WDI/RESETB, FAULTB00, FAULTB01, FAULTB10, FAULTB11, WP
V
IH
V
IL
V
HYST
I
LEAK
High Level Input Voltage
Low Level Input Voltage
Input Hysteresis
Input Leakage Current
0V ≤ V
PIN
≤ 5.5V, SDA, SCL, CONTROLx
Pins Only
0V ≤ V
PIN
≤ V
DD33
+ 0.3V, FAULTBxx,
WDI/RESETB, WP Pins Only
t
SP
t
FAULT_MIN
Pulse Width of Spike Suppressed
Minimum Low Pulse Width for
Externally Generated Faults
FAULTBxx, CONTROLx Pins Only
SDA, SCL Pins Only
110
l
l
2.1
1.5
20
±2
±2
10
98
V
V
mV
µA
µA
µs
ns
ms
2978fc
7
LINEAR [ LINEAR INTEGRATED SYSTEMS ]
