AMC7891_14 Datasheet, PDF (8/42 Pages) Texas Instruments – Analog Monitor and Control Circuit with 10-Bit, Multi-Channel ADC and Four DACs, Temperature Sensor, and 12 GPIOs

AMC7891
SBAS518A – AUGUST 2011 – REVISED DECEMBER 2011
www.ti.com
ELECTRICAL CHARACTERISTICS – GENERAL SPECIFICATIONS
AV_DD = 4.75 to 5.5 V, GPIOV_DD = 1.8 to 5.5 V, SPIV_DD = 1.8 to 5.5 V, AGND = DGND = 0 V, External ADC reference = AV_DD,
T_A = –40°C to 105°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
GENERAL PURPOSE I/O
V_IH
High-level input voltage
V_IL
Low-level input voltage
V_OH
High-level output voltage
GPIOV_DD = 1.8 V
GPIOV_DD = 3.3 to 5.5 V
GPIOV_DD = 1.8 V
GPIOV_DD = 3.3 to 5.5 V
I_load = 1.6 mA, GPIOV_DD = 1.8V, All GPIOs
loaded and set to '1'
I_load = 1.6 mA, GPIOV_DD = 3.3 to 5.5V, All
GPIOs loaded and set to '1'
0.7×GPIOV_DD
2.1
GPIOV_DD - 0.25
GPIOV_DD - 0.2
V
V
0.3 V
0.8 V
V
V
V_OL
Low-level output voltage
Input capacitance ⁽¹⁾
I_load = -1.6 mA, All GPIOs loaded
0.4 V
1
pF
High impedance output
capacitance ⁽¹⁾
1
pF
LOGIC INPUTS: CS, SDI, SCLK
V_IH
High-level input voltage
V_IL
Low-level input voltage
Input current
Input capacitance ⁽¹⁾
SPIV_DD = 1.8 V
SPIV_DD = 3.3 to 5.5 V
SPIV_DD = 1.8 V
SPIV_DD = 3.3 to 5.5 V
0.7×SPIV_DD
2.1
V
V
0.3 V
0.7 V
±1 µA
1
pF
High impedance output
capacitance ⁽¹⁾
1
pF
LOGIC OUTPUT: SDO
V_OH
High-level output voltage
V_OL
Low-level output voltage
LOGIC OUTPUT: DAV
I_load = 1.6 mA
I_load = -1.6 mA
SPIV_DD - 0.2
V
0.4 V
V_OL
Low-level output voltage
POWER REQUIREMENTS
I_load = -2 mA
0.4 V
AV_DD
GPIOV_DD
SPIV_DD
I_DD
Total supply current, AV_DD +
GPIOV_DD + SPIV_DD
Power consumption
Operating mode⁽²⁾
Power down mode
Operating mode⁽²⁾
4.75
5
1.8
1.8
6.5
1.25
32.5
5.5 V
5.5 V
5.5 V
10 mA
2 mA
55 mW
Power down mode
6.25
11 mW
OPERATING RANGE
Specified temperature range
–40
25
105 °C
(1) Specified by design. Not tested in production.
(2) AV_DD = GPIOV_DD = SPIV_DD = 5 V. No DAC load, all DACs at 0x200 code and ADC at the fastest auto conversion rate.
8
Submit Documentation Feedback
Product Folder Link(s): AMC7891
Copyright © 2011, Texas Instruments Incorporated