AMC7812SPAPR Datasheet, PDF (6/92 Pages) Texas Instruments – 12-Bit Analog Monitoring and Control Solution with Multichannel ADC, DACs, and Temperature Sensors

AMC7812
SBAS513E – JANUARY 2011 – REVISED SEPTEMBER 2013
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
At T_A = –40°C to +105°C, AV_DD = DV_DD = 4.5V to 5.5V, AV_CC = +15V, AGND = DGND = 0V, IOV_DD = 2.7V to 5.5V, internal
2.5V reference, and the DAC output span = 0V to 5V, unless otherwise noted.
AMC7812
PARAMETER
TEST CONDITIONS
MIN TYP
MAX UNIT
DIGITAL LOGIC: All Except SCL, SDA, ALARM, and GPIO
V_IH
Input high voltage
V_IL
Input low voltage
Input current
IOV_DD = +5V
IOV_DD = +3.3V
IOV_DD = +5V
IOV_DD = +3.3V
2.1
2.1
–0.3
0.3 + IOV_DD
V
0.3 + IOV_DD
V
0.8 V
–0.3
0.8 V
±1 µA
Input capacitance
5 pF
V_OH
Output high voltage
V_OL
Output low voltage
High-impedance leakage
IOV_DD = +5V, sourcing 3mA
IOV_DD = +3.3V, sourcing 3mA
IOV_DD = +5V, sinking 3mA
IOV_DD = +3.3V, sinking 3mA
4.8
V
2.9
V
0.4 V
0.4 V
±5 µA
High-impedance output capacitance
DIGITAL LOGIC: SDA, SCL (I²C-Compatible Interface)
10 pF
V_IH
Input high voltage
V_IL
Input low voltage
Input current
IOV_DD = +5V
IOV_DD = +3.3V
IOV_DD = +5V
IOV_DD = +3.3V
2.1
2.1
–0.3
0.3 + IOV_DD
V
0.3 + IOV_DD
V
0.8 V
–0.3
0.8 V
±5 µA
Input capacitance
5 pF
V_OL
Output low voltage
High-impedance leakage
IOV_DD = +5V, sinking 3mA
IOV_DD = +3.3V, sinking 3mA
0
0.4 V
0
0.4 V
±5 µA
High-impedance output capacitance
10 pF
TIMING REQUIREMENTS
Power-on delay
From AV_DD , DV_DD ≥ 2.7V and AV_CC ≥ 4.5V to
normal operation
100
250 µs
Power-down recovery time
from CS rising edge
70 µs
Reset delay
Delay to normal operation from any reset
100
250 µs
Convert pulse width
20
ns
Reset pulse width
20
ns
POWER-SUPPLY REQUIREMENTS
AV_DD
AI_DD
AV_DD must be ≥ (V_REF + 1.2V)
AV_DD and DV_DD combined,
normal operation, no DAC load
AV_DD and DV_DD combined,
all blocks in power down
+2.7
7.9
1.6
+5.5 V
12.5 mA
mA
AV_CC
IV_CC
Power dissipation
AV_CC, no load, DACs at code 800h
Normal operation⁽¹⁰⁾, AV_DD = DV_DD = 5V, AV_CC
= 15V
+4.5
95
+18 V
6.5 mA
120 mW
DV_DD
IOV_DD
TEMPERATURE RANGE
+2.7
+5.5 V
+2.7
+5.5 V
Specified performance
–40
+105 °C
(10) No DAC load, all DACs at 800h and both ADCs at the fastest auto conversion rate
6
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