AD7982BRMZ Analog Devices Inc, AD7982BRMZ Datasheet - Page 3

• Manufacturer Part Number: AD7982BRMZ
• Description: IC ADC 18BIT 1MSPS PULSAR 10MSOP
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of AD7982BRMZ

• Data Interface: DSP, MICROWIRE™, QSPI™, Serial, SPI™
• Design Resources: Converting a Single-Ended Signal with AD7982 Differential PulSAR ADC (CN0032) Precision Single-Supply Differential ADC Driver for Industrial-Level Signals (CN0180)
• Number Of Bits: 18
• Sampling Rate (per Second): 1M
• Number Of Converters: 1
• Power Dissipation (max): 8.6mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-TFSOP (0.118", 3.00mm Width)
• Resolution (bits): 18bit
• Sampling Rate: 1MSPS
• Input Channel Type: Differential
• Supply Voltage Range - Analog: 2.375V To 2.625V
• Supply Current: 350nA
• Package: 10MSOP
• Resolution: 18 Bit
• Architecture: SAR
• Number Of Analog Inputs: 1
• Digital Interface Type: Serial (3-Wire, 4-Wire, SPI, QSPI, Microwire)
• Input Type: Voltage
• Signal To Noise Ratio: 98(Typ) dB
• Polarity Of Input Voltage: Bipolar
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SPECIFICATIONS
VDD = 2.5 V, VIO = 2.3 V to 5.5 V, REF = 5 V, T
Table 2.
Parameter
RESOLUTION
ANALOG INPUT
ACCURACY
THROUGHPUT
AC ACCURACY
1
2
3
4
5
LSB means least significant bit. With the ±5 V input range, 1 LSB is 38.15 μV.
See 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.
Dynamic range is obtained by oversampling the ADC running at a throughput F
Tested fully in production at f
Common-Mode Input Range
Oversampled Dynamic Range
Signal-to-Noise
Voltage Range
Absolute Input Voltage
Analog Input CMRR
Leakage Current at 25°C
Input Impedance
No Missing Codes
Differential Linearity Error
Integral Linearity Error
Transition Noise
Gain Error, T
Gain Error Temperature Drift
Zero Error, T
Zero Temperature Drift
Power Supply Rejection Ratio
Conversion Rate
Transient Response
Dynamic Range
Spurious-Free Dynamic Range
Total Harmonic Distortion
Signal-to-(Noise + Distortion)
MIN
MIN
to T
to T
MAX
MAX
2
2
IN
= 1 kHz.
5
4
Conditions
IN+ − IN−
IN+, IN−
IN+, IN−
f
Acquisition phase
REF = 5 V
VDD = 2.5 V ± 5%
Full-scale step
V
V
F
f
f
f
f
f
IN
IN
IN
IN
IN
IN
O
REF
REF
= 450 kHz
= 1 kHz, V
= 1 kHz, V
= 10 kHz
= 10 kHz
= 1 kHz, V
= 1 kSPS
= 5 V
= 2.5 V
A
= −40°C to +85°C, unless otherwise noted.
REF
REF
REF
= 5 V, T
= 2.5 V, T
= 5 V, T
Rev. A | Page 3 of 24
A
A
= 25°C
= 25°C
A
= 25°C
s
of 1 MSPS followed by postdigital filtering with an output word rate of F
−V
−0.85
−2
Min
18
−0.1
V
18
−0.023
0
97
95.5
REF
REF
× 0.475
See the Analog Inputs section
Typ
V
67
200
±0.5
±1
1.05
+0.004
±1
±100
0.5
90
99
93
129
98
92.5
−115
−120
97
REF
× 0.5
Max
+V
V
V
+1.5
+2
+0.023
+700
1
290
REF
REF
REF
+ 0.1
× 0.525
O
.
AD7982
Unit
Bits
V
V
V
dB
nA
Bits
LSB
LSB
LSB
% of FS
ppm/°C
μV
ppm/°C
dB
MSPS
ns
dB
dB
dB
dB
dB
dB
dB
dB
3
3
3
3
3
3
3
3
1
1
1