AMC7823_15 Datasheet, PDF (7/55 Pages) Texas Instruments – ANALOG MONITORING AND CONTROL CIRCUIT

AMC7823
www.ti.com
SLAS453F – APRIL 2005 – REVISED MARCH 2012
ELECTRICAL CHARACTERISTICS: +3V (continued)
At –40°C to +85°C, AV_DD, DV_DD, BV_DD = 3V, using external 1.25V reference, unless otherwise noted.
AMC7823
PARAMETER
TEST CONDITIONS
MIN TYP
MAX
PRECISION CURRENT SOURCE
Output current range
0.01
10
Output current accuracy
Output current drift
Output impedance
Compliance voltage of pin
PRECISION_I_OUTPUT
I_out = 100μA
I_out = 100μA
I_out = 100μA
AV_DD = 2.7V, I_out = 10mA
99.5 100.0
40
100
1.9
2
100.5
Power-supply rejection ratio
60
VOLTAGE REFERENCE (V_REF)
Internal reference voltage⁽⁵⁾
At +25°C
1.247 1.25
1.253
Internal reference drift
–40°C to +85°C
±20
Output impedance of pin EXT_REF_IN
as internal reference output
10
Short-circuit current
125
External reference voltage
1.20
1.28
External reference input resistance
10
External reference input capacitance
5
TEMPERATURE SENSOR
Temperature range
–40
85
Resolution
1.6
Accuracy
±2.0
LEVEL OF PIN GALR AND DAV
I_OH = 0.3mA
I_OL = 125μA
DIGITAL INPUT/OUTPUT, EXCEPT PIN GALR AND DAV
2.4
DV_DD
0
0.4
V_IH
V_IL
Logic level
V_OH
V_OL
Input capacitance
I_IH = 5μA
I_IL = –5μA
I_OH = –3mA
I_OL = 3mA
2.1
BV_DD + 0.3
0
0.6
2.4
BV_DD
0
0.4
5
POWER SUPPLY REQUIREMENTS
Power-
supply
voltage
AV_DD
DV_DD
BV_DD ⁽⁶⁾
Quiescent current of AV_DD
In normal operation
All power-down
2.70
3
3.3
2.70
3.3
2.70
3.3
10
15
1
Quiescent current of DV_DD
0.3
Quiescent current of BV_DD
0.1
Power dissipation
60
TEMPERATURE RANGE
Specified performance
–40
+85
Storage
–65
+150
UNIT
mA
μA
ppm/°C
MΩ
V
dB
V
ppm/°C
kΩ
μA
V
kΩ
pF
°C
°C
°C
V
V
V
V
V
V
pF
V
V
V
mA
mA
mA
mA
mW
°C
°C
(5) Bit GREF in AMC Status/Configuration Register determines the internal reference voltage. GREF must be cleared when AV_DD is less
than 5V and the internal reference is selected (see AMC Status/Configuration Register for details).
(6) BV_DD must be not greater than AV_DD or DV_DD.
Copyright © 2005–2012, Texas Instruments Incorporated
Product Folder Link(s): AMC7823
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