EVAL-AD7944EBZ Analog Devices Inc, EVAL-AD7944EBZ Datasheet - Page 3

• Manufacturer Part Number: EVAL-AD7944EBZ
• Description: BOARD EVAL FOR AD7944
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of EVAL-AD7944EBZ

• Number Of Adc's: 1
• Number Of Bits: 14
• Sampling Rate (per Second): 2.5M
• Data Interface: SPI™, QSPI™, MICROWIRE™, and DSP
• Inputs Per Adc: 1 Differential
• Input Range: 0 ~ 5 V
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7944
• Silicon Manufacturer: Analog Devices
• Application Sub Type: ADC
• Kit Application Type: Data Converter
• Silicon Core Number: AD7944
• Kit Contents: Board And Literature
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SPECIFICATIONS
AVDD = DVDD = 2.5 V, BVDD = 5 V, VIO = 1.8 V to 2.7 V, V
Table 2.
Parameter
RESOLUTION
ANALOG INPUT
ACCURACY
THROUGHPUT
AC ACCURACY
SAMPLING DYNAMICS
1
2
3
4
LSB means least significant bit. With the ±4.096 V input range, one LSB is 250 µV.
See the Terminology section. These specifications include full temperature range variation but not the error contribution from the external reference.
All specifications expressed in decibels are referred to a full-scale input FSR and tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
Tested fully in production at f
Signal-to-Noise-and-Distortion Ratio,
Voltage Range
Absolute Input Voltage
Leakage Current at 25°C
Input Impedance
No Missing Codes
Differential Nonlinearity Error, DNL
Integral Nonlinearity Error, INL
Transition Noise
Gain Error
Gain Error Temperature Drift
Zero Error
Zero Error Temperature Drift
Power Supply Sensitivity
Conversion Rate
Transient Response
Dynamic Range
Signal-to-Noise Ratio, SNR
Spurious-Free Dynamic Range, SFDR
Total Harmonic Distortion, THD
−3 dB Input Bandwidth
Aperture Delay
SINAD
2
2
3
IN
3
= 1 kHz.
4
Test Conditions/Comments
(IN+) − (IN−)
IN+
IN−
Acquisition phase
T
T
AVDD = 2.5 V ± 5%
Full-scale step
V
V
f
V
V
f
f
reference
f
IN
IN
IN
IN
MIN
MIN
REF
REF
REF
REF
= 20 kHz
= 20 kHz
= 20 kHz, V
= 20 kHz, V
= 4.096 V, internal reference
= 5.0 V, external reference
= 4.096 V, internal reference
= 5.0 V, external reference
to T
to T
MAX
MAX
REF
REF
Rev. A | Page 3 of 28
= 4.096 V, internal
= 4.096 V
REF
= 4.096 V, T
A
= −40°C to +85°C, unless otherwise noted.
Min
14
0
−0.1
−0.1
14
−0.90
−1.00
−15
−0.65
0
83.5
84
83.5
84
See the Analog Inputs section
Typ
250
±0.25
±0.25
0.9
±2
±0.8
±0.08
0.55
84.3
84.5
85
84
84.5
103
−102
84
19
0.7
Max
V
V
+0.1
+0.90
+1.00
+15
+0.65
2.5
100
REF
REF
+ 0.1
AD7944
Unit
Bits
V
V
V
nA
Bits
LSB
LSB
LSB
LSB
ppm/°C
mV
ppm/°C
dB
MSPS
ns
dB
dB
dB
dB
dB
dB
dB
MHz
ns
1
1
1
1