EVAL-AD7985EBZ Analog Devices Inc, EVAL-AD7985EBZ Datasheet - Page 3

• Manufacturer Part Number: EVAL-AD7985EBZ
• Description: 16-Bit A/D Converter Eval. Board
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of EVAL-AD7985EBZ

• Silicon Manufacturer: Analog Devices
• Application Sub Type: ADC
• Kit Application Type: Data Converter
• Silicon Core Number: AD7985
• Kit Contents: Board
• Number Of Adc's: 1
• Number Of Bits: 16
• Sampling Rate (per Second): 2.5M
• Data Interface: SPI™, QSPI™, MICROWIRE™, and DSP
• Inputs Per Adc: 1 Differential
• Input Range: 0 ~ 5 V
• Power (typ) @ Conditions: 15.5mW @ 2.5MSPS
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7985
• Development Tool Type: Hardware - Eval/Demo Board
• 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 62.5 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, T
Gain Error Temperature Drift
Zero Error, T
Zero Temperature Drift
Power Supply Sensitivity
Conversion Rate
Transient Response
Dynamic Range
Signal-to-Noise Ratio, SNR
Spurious-Free Dynamic Range, SFDR
Total Harmonic Distortion
−3 dB Input Bandwidth
Aperture Delay
SINAD
MIN
MIN
to T
to T
MAX
MAX
2
2
IN
= 1 kHz.
4
, THD
Test Conditions/Comments
(IN+) − (IN−)
IN+
IN−
Acquisition phase
AVDD = 2.5 V ± 5%
Full-scale step
V
V
f
reference
f
reference
f
f
reference
f
IN
IN
IN
IN
IN
REF
REF
= 20 kHz, V
= 20 kHz, V
= 20 kHz
= 20 kHz, V
= 20 kHz, V
= 4.096 V, internal reference
= 5.0 V, external reference
REF
REF
REF
REF
Rev. A | Page 3 of 28
= 4.096 V, internal
= 5.0 V, external
= 4.096 V, internal
= 4.096 V
REF
= 4.096 V, T
A
= −40°C to +85°C, unless otherwise noted.
Min
16
0
−0.1
−0.1
16
−0.99
−1.50
−15
−0.99
0
87.5
89.0
87.0
89.0
See the Analog Inputs section
Typ
250
±0.50
±0.7
0.8
±2
±0.8
±0.08
0.55
90
89
90
88.5
90.0
103
−100
90.5
19
0.7
Max
V
V
+0.1
+0.99
+1.50
+15
+0.99
2.5
100
REF
REF
+ 0.1
AD7985
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
3
3
3
3
3
3
3
3
1
1
1
1