Datasheet

Data Sheet AD7292
Rev. 0 | Page 3 of 40
SPECIFICATIONS
ADC SPECIFICATIONS
AV
DD
= 4.75 V to 5.25 V, DV
DD
= 1.8 V to 5.25 V, V
REF
= 1.25 V internal, V
DRIVE
= 1.8 V to 5.25 V, A
GND
= 0 V, T
A
= −40°C to +125°C,
unless otherwise noted. Specifications apply to single-ended mode only, unless otherwise noted.
Table 1.
Parameter Min Typ Max Unit Test Conditions/Comments
DC ACCURACY
Resolution 10 Bits
Integral Nonlinearity (INL)
1
±0.11
±0.5
LSB
±0.6 LSB (AV
DD
− 4 × V
REF
) to AV
DD
input range
Differential Nonlinearity (DNL)
1
±0.1 ±0.99 LSB
Offset Error ±3 ±8 mV
±12 mV (AV
DD
− 4 × V
REF
) to AV
DD
input range
Offset Error Matching 0.5 ±1 mV
Offset Error Drift ±0.22 ppm/°C
Gain Error ±0.09 ±0.25 % FS
±0.36 % FS (AV
DD
− 4 × V
REF
) to AV
DD
input range
Gain Error Matching ±0.5 % FS
Gain Error Drift ±4.17 ppm/°C
DYNAMIC PERFORMANCE
1
f
IN
= 10 kHz sine wave
Signal-to-Noise Ratio (SNR) 61.5 dB
Signal-to-Noise-and-Distortion (SINAD)
Ratio
61.5 dB
Total Harmonic Distortion (THD) −84 dB
Spurious-Free Dynamic Range (SFDR) 84.5 dB
Channel-to-Channel Isolation −80 dB f
IN
= 3 kHz to 1000 kHz
Full Power Bandwidth 60 MHz At −3 dB (0 V to V
REF
input range)
3 MHz At −0.1 dB (0 V to V
REF
input range)
CONVERSION RATE
Conversion Time 900 ns See Table 5
Track-and-Hold Acquisition Time 45 ns
Throughput Rate 625 kSPS ADC only; temperature sensor
disabled
150 kSPS ADC and temperature sensor
ANALOG INPUT
Single-Ended Input Range
With Respect to A
GND
0 4 × V
REF
V
0 2 × V
REF
V
0 V
REF
V
With Respect to AV
DD
AV
DD
− 4 × V
REF
AV
DD
V
Fully Differential Input Range −4 × V
REF
+4 × V
REF
V VIN0 and VIN1 inputs only
−2 × V
REF
+2 × V
REF
V
−V
REF
+V
REF
V
Input Capacitance 23 pF 0 V to V
REF
input range
18
pF
0 V to 2 × V
REF
input range
15 pF 0 V to 4 × V
REF
input range
DC Input Leakage Current ±1 µA
INTERNAL REFERENCE
Reference Output Voltage 1.245 1.25 1.255 V At 25°C
Reference Temperature Coefficient ±13 ppm/°C