AD7982BRMZ Analog Devices Inc, AD7982BRMZ Datasheet - Page 9

• 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

TYPICAL PERFORMANCE CHARACTERISTICS
VDD = 2.5 V, REF = 5.0 V, VIO = 3.3 V.
–0.5
–1.0
–1.5
–2.0
60000
50000
40000
30000
20000
10000
–100
–120
–140
–160
–180
2.0
1.5
1.0
0.5
–20
–40
–60
–80
0
0
0
0
0
Figure 7. Histogram of a DC Input at the Code Center
3FFF0
0
Figure 6. Integral Nonlinearity vs. Code
0
3FFF2
100
65536
29
745
3FFF4
Figure 8. FFT Plot
7795
FREQUENCY (kHz)
200
29064
CODE IN HEX
131072
CODE
3FFF6
50975
POSITIVE INL: +0.79 LSB
NEGATIVE INL: –0.68 LSB
32476
300
3FFF8
9064
196608
f
f
SNR = 97.3dB
THD = –121.8dB
SFDR = 120.2dB
SINAD = 97.3dB
S
IN
881
= 1MSPS
= 2kHz
400
3FFFA
43
0
262144
3FFFC
500
0
Rev. A | Page 9 of 24
–0.5
–1.0
–1.5
–2.0
50000
45000
40000
35000
30000
25000
20000
15000
10000
2.0
1.5
1.0
0.5
100
5000
0
99
98
97
96
95
94
93
92
91
90
Figure 10. Histogram of a DC Input at the Code Transition
–10
0
0
0
0
–9
Figure 9. Differential Nonlinearity vs. Code
0
1
–8
65536
7
2
Figure 11. SNR vs. Input Level
145
3
–7
2793
4
INPUT LEVEL (dB)
16682
–6
5
CODE IN HEX
131072
CODE
44806
6
–5
43239
POSITIVE INL: +0.46 LSB
NEGATIVE INL: –0.49 LSB
7
–4
20013
8
3158
196608
–3
9
222
A
–2
B
7
–1
AD7982
C
0
262144
D
0
0