AD7328BRUZ Analog Devices Inc, AD7328BRUZ Datasheet - Page 30

• 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

AD7328
POWER VS. THROUGHPUT RATE
The power consumption of the AD7328 varies with the throughput
rate. The static power consumed by the AD7328 is very low, and
significant power savings can be achieved as the throughput rate is
reduced. Figure 51 and Figure 52 show the power vs. throughput
rate for the AD7328 at a V
plots clearly show that the average power consumed by the AD7328
is greatly reduced as the sample frequency is reduced. This is true
whether a fixed SCLK value is used or the SCLK value is scaled
with the sampling frequency. Figure 51 and Figure 52 show the
power consumption when operating the device in normal mode
for a fixed 20 MHz SCLK and a variable SCLK that scales with
the sampling frequency.
12
10
8
6
4
2
0
0
Figure 51. Power vs. Throughput Rate with 3 V V
100
200
300
THROUGHPUT RATE (kSPS)
CC
400
20MHz SCLK
of 3 V and 5 V, respectively. Both
500
600
V
V
T
INTERNAL REFERENCE
700
A
CC
DD
VARIABLE SCLK
= 25°C
/V
= 3V
SS
800
= ±12V
900 1000
CC
1100
Rev. B | Page 30 of 36
20
18
16
14
12
10
8
6
4
2
0
0
Figure 52. Power vs. Throughput Rate with 5 V V
100
200
300
THROUGHPUT RATE (kHz)
400
500
VARIABLE SCLK
600
V
V
T
INTERNAL REFERENCE
A
CC
DD
= 25°C
/V
= 5V
700
SS
= ±12V
20MHz SCLK
800
CC
900
1
000