Datasheet

LTC2970/LTC2970-1
4
29701fc
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Voltage Buffered IDAC Output Characteristics
INL_V
OUT
Integral Nonlinearity R
IOUTn
= 10kΩ, No Load on V
OUTn
(Note 5)
●
±1 LSB
DNL_V
OUT
Differential Nonlinearity R
IOUTn
= 10kΩ, No Load on V
OUTn
(Note 5)
●
±1 LSB
V
OS-
V
OUT
Offset Voltage V
OS
= V
OUTn
– V
IOUTn
, No Load on V
OUTn
●
1.6 ±10 mV
Output Voltage Drift No Load on V
OUTn
0.17 μV/°C
V
OUT
Load Regulation 0.1V < V
OUTn
< V
DD
– 1.5V, I
VOUTn
Source = 1mA –57 ppm/mA
0.1V < V
OUTn
< V
DD
– 1.5V, I
VOUTn
Sink = 1mA 100 ppm/mA
Leakage Current V
OUTn
High-Z, 0V ≤ V
OUTn
≤ V
DD
●
1 ±100 nA
Short-Circuit Current Low V
OUTn
Shorted to GND
●
–50 mA
Short-Circuit Current High V
OUTn
Shorted to V
DD
●
50 mA
Soft Connect Comparator Characteristics (CMP0, CMP1)
V
OS
Offset Voltage ±3 mV
Temperature Sensor Characteristics
TMP Gain 0.25 °C/LSB
12V
IN
Voltage Divider Characteristics
GAIN_12V
IN
Gain
●
0.329 0.333 0.335 V/V
Digital Inputs SCL, SDA, GPIO_CFG, GPIO_0, GPIO_1
V
IH
Input High Threshold Voltage SDA, SCL
●
2.1 V
GPIO_CFG, GPIO_0, GIPO_1
●
1.6 V
V
IL
Input Low Threshold Voltage SDA, SCL
●
1.5 V
GPIO_CFG, GPIO_0, GIPO_1
●
1.0 V
V
HYST
Input Hysteresis 0.08 V
I
LEAK
Input Leakage Current 0V ≤ V
IN
≤ 6V
●
±1 μA
C
IN
Input Capacitance 10 pF
Three State Inputs ASEL[1:0]
V
IH_ASEL
Input High Threshold Voltage
●
V
DD
– 0.5 V
V
IL_ASEL
Input Low Threshold Voltage
●
0.5 V
I
IN,HL
High, Low Input Current ASEL[1:0] = 0, V
DD
●
±20 μA
I
IN,Z
High Z Input Current
●
±2 μA
Open Drain Outputs SDA, GPIO_CFG, GPIO_0, GPIO_1,
⎯
A
⎯
L
⎯
E
⎯
R
⎯
T
V
OL
Output Low Voltage I
SINK
= 3mA
●
0.4 V
I
OH
Input Leakage Current 0V ≤ V
IN
≤ 6V
●
±1 μA
The ● denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
12VIN
= 12V, V
DD
and REF pins fl oating unless otherwise indicated,
C
VDD
= 100nF and C
REF
= 100nF.