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AD7293 Datasheet(PDF) 6 Page - Analog Devices

Part # AD7293
Description  12-Bit Power Amplifier Current Controller with ADC, DACs, and Temperature and Current Sensors
PDF  79 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7293 Datasheet(HTML) 6 Page - Analog Devices

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AD7293
Data Sheet
Rev. D | Page 6 of 79
SPECIFICATIONS
ADC
AVDD, DVDD, DACVDD-BI = 4.5 V to 5.5 V (connect AVDD and DACVDD-BI to the same potential), DACVDD-UNI = 5 V, AVSS = −5 V, PAVDD =
5 V, AGND = DGND = 0 V, VREFIN = 2.5 V internal or external; VDRIVE = 1.7 V to 5.5 V; TA = −40°C to +125°C, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DC ACCURACY
Resolution
12
Bits
Integral Nonlinearity (INL)
±0.5
±1
LSB
Differential Nonlinearity (DNL)
±0.5
±0.99
LSB
No missing codes
Single-Ended Mode
Zero Code Error
±0.4
±2.5
LSB
Zero Code Error Mismatch
±0.6
LSB
Full-Scale Error
±6.5
LSB
Full-Scale Error Mismatch
±1.5
LSB
Differential Mode
Gain Error
±3
±6.5
LSB
Gain Error Mismatch
±1.5
LSB
Zero Code Error
±0.5
±2
LSB
Zero Code Error Mismatch
±0.6
LSB
DYNAMIC PERFORMANCE
fIN = 1 kHz sine wave; single-ended mode;
0 V to 4 × REFADC
Signal-to-Noise Ratio (SNR)1, 2
72
dB
Signal-to-Noise + Distortion (SINAD) Ratio1, 2
72
dB
Total Harmonic Distortion (THD)1, 2
−90.5
dB
Channel to Channel Isolation2
95
dB
fIN = 100 Hz to 80 kHz
Full Power Bandwidth2
7
MHz
At 0.1 dB; single-ended mode; 0 V to 4 × REFADC
CONVERSION RATE
Conversion Time2
500
ns
Track-and-Hold Acquisition Time2
100
ns
Voltage inputs in command mode
ANALOG INPUT1
REFADC = 1.25 V
Single-Ended Input Range
0
1.25
V
0 V to REFADC mode
0
2.5
V
0 V to 2 × REFADC mode
0
5
V
0 V to 4 × REFADC mode
Pseudo Differential Range (VIN+ − VIN−3)
0
1.25
V
0 V to REFADC mode
0
2.5
V
0 V to 2 × REFADC mode
0
5
V
0 V to 4 × REFADC mode
Differential Range (VIN+ − VIN−)4
−1.25
+1.25
V
0 V to REFADC mode
−2.5
+2.5
V
0 V to 2 × REFADC mode
−5
+5
V
0 V to 4 × REFADC mode
Input Capacitance2
30
pF
DC Input Leakage Current
±1
µA
INTERNAL BI-VOUTx MONITORING INPUTS
Full-Scale Input Range
−5
+5
V
Resolution
12
Bits
LSB step size ≈ 2.5 mV
Gain Error
±0.53
%
Offset Error
±14
mV
INTERNAL RSx+ MONITORING INPUTS
Full-Scale Input Range
0
62.5
V
Resolution
12
Bits
LSB step size ≈ 15.2 mV
Gain Error
0.06
%
Offset Error
±11
mV



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