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AMC7834 Datasheet, PDF (9/93 Pages) Texas Instruments – AMC7834 12-Bit Integrated Power-Amplifier Monitor and Control System with Temperature, Current and Voltage Supervision Capabilities
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AMC7834
SLAS972B – NOVEMBER 2014 – REVISED MARCH 2016
6.5 Electrical Characteristics—DAC Specifications
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. AVDD = DVDD = 5 V, AVCC = 5 V, AVSS = –5 V, IOVDD = 3.3 V, PAVDD = 5 V, AGND = DGND = 0 V,
external 2.5 V reference, DAC output range = 0 to 5 V for all DACs, no load on the DACs, current sense inputs common
mode at 48 V, TA = –40°C to +105°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
BIPOLAR DAC DC ACCURACY
Resolution
12
Bits
INL Relative accuracy
Measured by line passing through codes 040h and
FC0h. 0 to 5 V range
Measured by line passing through codes 040h and
FC0h. –4 to 1 V and –5 to 0 V ranges
±0.3
±1
LSB
±0.3
±1
DNL Differential nonlinearity
Specified monotonic. Measured by line passing through
codes 040h and FC0h. 0 to 5 V range
Specified monotonic. Measured by line passing through
codes 040h and FC0h. –4 to 1 V and –5 to 0 V ranges
±0.05
±0.05
±1
LSB
±1
TUE Total unadjusted error
Offset error
TA = 25°C, 0 to 5 V range
TA = 25°C, –4 to 1 V and –5 to 0 V ranges
TA = 25°C. Measured by line passing through codes
040h and FC0h. 0 to 5 V range
±1
±15
mV
±2
±15
±0.2
±10 mV
Zero-code error
Gain error
TA = 25°C. Code 000h. –4 to 1 V and –5 to 0 V ranges.
AVSS = –5.5 V
TA = 25°C. Measured by line passing through codes
040h and FC0h. 0 to 5 V range
TA = 25°C. Measured by line passing through codes
040h and FC0h. –4 to 1 V and –5 to 0 V ranges
±2
±0.02
±0.02
±10 mV
±0.2
%FSR
±0.2
Offset temperature drift 0 to 5 V range
±1
ppm/°C
Zero-code temperature
drift
–4 to 1 V and –5 to 0 V ranges. AVSS = –5.5 V
±1.5
ppm/°C
Gain temperature drift
All output ranges
±1
ppm/°C
AUXILIARY DAC DC ACCURACY
Resolution
12
Bits
INL Integral nonlinearity
DNL Differential nonlinearity
TUE Total unadjusted error
Offset error
Gain error
Offset temperature drift
Measured by line passing through codes 040h and
FC0h. 0 to 5 V range
Measured by line passing through codes 040h and
FC0h. 2.5 to 7.5 V range. AVCC = 12 V
Specified monotonic. Measured by line passing through
codes 040h and FC0h. 0 to 5 V range
Specified monotonic. Measured by line passing through
codes 040h and FC0h. 2.5 to 7.5 V range. AVCC = 12 V
TA = 25°C. 0 to 5 V range
TA = 25°C. 2.5 to 7.5 V range. AVCC = 12 V
TA = 25°C. Measured by line passing through codes
040h and FC0h. 0 to 5 V range
TA = 25°C. Measured by line passing through codes
040h and FC0h. 2.5 to 7.5 V range. AVCC = 12 V
TA = 25°C. Measured by line passing through codes
040h and FC0h. 0 to 5 V range
TA = 25°C. Measured by line passing through codes
040h and FC0h. 2.5 to 7.5 V range. AVCC = 12 V
All output ranges
±0.5
±0.5
±0.05
±0.05
±2
±2
±0.3
±1
±0.03
±0.03
±1
±1.25
LSB
±1.25
±1
LSB
±1
±15
mV
±15
±10
mV
±10
±0.2
%FSR
±0.2
ppm/°C
Gain temperature drift
All output ranges
±1
ppm/°C
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