AMC7832_15 Datasheet, PDF (8/72 Pages) Texas Instruments – AMC7832 12-Bit Analog Monitor and Control Solution with Multi-Channel ADC, Bipolar DACs, Temperature Sensor and GPIO Ports

AMC7832
SLAS836 – MARCH 2014
www.ti.com
7.5 Electrical Characteristics
The electrical ratings specified in this section apply to all specifications in this document, unless otherwise noted. These
specifications are interpreted as conditions that do not degrade the device parametric or functional specifications for the life of
the product containing it. AV_DD = DV_DD = +4.5 to +5.5-V, AV_CC = +12-V, AV_EE = -12-V, IOV_DD = +1.8 to +5.5-V, AGND =
DGND = 0-V, AVSS_A,B,C,D = 0-V (DAC groups in positive ranges) or -12-V (DAC groups in negative range), DAC output range
= 0 to 10-V for all groups, no load on the DACs, T_A = -40°C to +105°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX UNIT
DAC SPECIFICATIONS
DAC DC ACCURACY
Resolution
12
Bits
INL
Relative accuracy
Measured by line passing through codes
020h and FFFh.
0 to +10-V and -10 to 0-V ranges
Measured by line passing through codes
040h and FFFh.
0 to +5-V range
±1
LSB
±1.5
DNL
Differential nonlinearity
Specified monotonic.
Measured by line passing through codes
020h and FFFh.
0 to +10-V and -10 to 0-V ranges.
Measured by line passing through codes
040h and FFFh.
0 to +5-V range
±0.3
±1 LSB
TUE
Total unadjusted error⁽¹⁾
T_A = 25°C
0 to +10-V range and -10 to 0-V ranges
T_A = 25°C
0 to +5-V range
±20 mV
±10 mV
Offset error
T_A = 25°C, Measured by line passing
through codes 020h and FFFh,
0 to +10-V range
T_A = 25°C, Measured by line passing
through codes 040h and FFFh,
0 to +5-V range
±5 mV
±5 mV
Zero-code error
Gain error⁽¹⁾
T_A = 25°C, Code 000h, -10 to 0-V range
T_A = 25°C, Measured by line passing
through codes 020h and FFFh,
0 to +10-V and -10 to 0-V ranges
T_A = 25°C, Measured by line passing
through codes 040h and FFFh,
0 to +5-V range
±20 mV
±0.2 %FSR
±0.2 %FSR
Offset temperature coefficient
0 to +10-V and 0 to +5-V ranges
±1
ppm/°C
Zero-code temperature coefficient
-10 to 0-V range
±2
ppm/°C
Gain temperature coefficient
All output ranges
±1
ppm/°C
DAC OUTPUT CHARACTERISTICS
Full-scale output voltage range⁽²⁾
Output voltage settling time
VRANGE_n terminal set to AGND
DAC-5VRANGE_n bit set to 0
VRANGE_n terminal set to AGND
DAC-5VRANGE_n bit set to 1
VRANGE_n terminal set to +2.5V
DAC-5VRANGE_n bit set to 0
Transition: Code 400h to C00h to within
½ LSB, R_L = 2kΩ, C_L = 200pF,
0 to +10-V and -10 to 0-V ranges
Transition: Code 400h to C00h to within
½ LSB, R_L = 2kΩ, C_L = 200pF,
0 to +5-V range
0
0
–10
10
8
10 V
5V
0V
µs
µs
(1) Internal reference contribution not included.
(2) The output voltage cannot be greater than AV_CC or lower than AVSS. See the DAC Output Range Selection section for more details.
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