AD7328BRUZ Analog Devices Inc, AD7328BRUZ Datasheet - Page 11

• Manufacturer Part Number: AD7328BRUZ
• Description: IC ADC 12BIT+ SAR 8CHAN 20TSSOP
• Manufacturer: Analog Devices Inc

Specifications of AD7328BRUZ

• Data Interface: DSP, MICROWIRE™, QSPI™, Serial, SPI™
• Design Resources: Using AD7328 in Appls with Single-Ended Industrial-Level Signals (CN0047)
• Number Of Bits: 12
• Sampling Rate (per Second): 1M
• Number Of Converters: 1
• Power Dissipation (max): 30mW
• Voltage Supply Source: Dual ±
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP (0.173", 4.40mm Width)
• Resolution (bits): 13bit
• Sampling Rate: 1MSPS
• Input Channel Type: Pseudo Differential, Single Ended
• Supply Current: 900µA
• Digital Ic Case Style: TSSOP
• No. Of Pins: 20
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-AD7328CBZ - BOARD EVALUATION FOR AD7328
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

Figure 18. DNL Error vs. Supply Voltage at 500 kSPS, 750 kSPS, and 1 MSPS
–100
–0.5
–1.0
–1.5
–2.0
–50
–55
–60
–65
–70
–75
–80
–85
–90
–95
2.0
1.5
1.0
0.5
8k
7k
6k
5k
4k
3k
2k
1k
0
0
Figure 17. CMRR vs. Common-Mode Ripple Frequency
0
5
Figure 16. Histogram of Codes, Single-Ended Mode
±5V RANGE
V
INTERNAL REFERENCE
SINGLE-ENDED MODE
V
CC
–3
0
CC
= V
= 5V
V
7
200
CC
DRIVE
–2
= 3V
23
= 5V
±V
9
RIPPLE FREQUENCY (kHz)
DD
400
1201
/V
–1
SS
DNL = 750kSPS
DNL = 1MSPS
SUPPLY VOLTAGE (V)
11
CODE
7600
600
0
13
DNL = 750kSPS
DIFFERENTIAL MODE
F
V
f
T
S
1165
IN
A
DD
= 1MSPS
1
= 25°C
800
= 50kHz
/V
SS
V
V
RANGE = ±10V
10k SAMPLES
T
15
A
CC
DD
= ±12V
DNL = 500kSPS
DNL = 500kSPS
= 25°C
DNL = 1MSPS
/V
= 5V
11
2
SS
1000
= ±12V
17
0
3
1200
19
Rev. B | Page 11 of 36
Figure 21. THD vs. Analog Input Frequency for Various Source Impedances,
Figure 19. INL Error vs. Supply Voltage at 500 kSPS, 750 kSPS, and 1 MSPS
Figure 20. PSRR vs. Supply Ripple Frequency Without Supply Decoupling
–100
–0.5
–1.0
–1.5
–2.0
–50
–55
–60
–65
–70
–75
–80
–85
–90
–95
–50
–55
–60
–65
–70
–75
–80
–85
–90
–95
2.0
1.5
1.0
0.5
0
10
5
0
R
V
V
T
INTERNAL REFERENCE
RANGE = ±10V AND ±2.5V
100mV p-p SINE WAVE ON EACH SUPPLY
NO DECOUPLING
SINGLE-ENDED MODE
f
S
A
CC
DD
IN
= 1MSPS
= 25°C
R
= 1000Ω, ±10V RANGE
/V
= V
IN
SS
7
200
DRIVE
= 2000Ω, ±10V RANGE
= ±12V
SUPPLY RIPPLE FREQUENCY (kHz)
ANALOG INPUT FREQUENCY (kHz)
= 5V
INL = 1MSPS
±V
True Differential Mode
9
DD
400
/V
SS
SUPPLY VOLTAGE (V)
11
INL = 500kSPS
INL = 500kSPS
600
100
R
IN
13
= 100Ω, ±10V RANGE
±5V RANGE
V
INTERNAL REFERENCE
SINGLE-ENDED MODE
V
V
CC
CC
DD
V
800
SS
= V
= 3V
= 12V
15
= –12V
DRIVE
R
±10V RANGE
R
±2.5V RANGE
R
±2.5V RANGE
R
±2.5V RANGE
R
±2.5V RANGE
R
±2.5V RANGE
INL = 750kSPS
INL = 1MSPS
INL = 750kSPS
IN
IN
IN
IN
IN
IN
V
1000
= 50Ω,
= 4700Ω,
= 2000Ω,
= 1000Ω,
= 100Ω,
= 50Ω,
CC
= 5V
17
= 5V
AD7328
1200
1000
19