AD7724ASTZ-REEL Analog Devices Inc, AD7724ASTZ-REEL Datasheet - Page 3

• Manufacturer Part Number: AD7724ASTZ-REEL
• Description: FOUR CHANNEL SIGMA DELTA MODULATOR I.C.
• Manufacturer: Analog Devices Inc
• Type: Modulatorr

Specifications of AD7724ASTZ-REEL

• Resolution (bits): 15 b
• Sampling Rate (per Second): 250k
• Data Interface: Serial
• Voltage Supply Source: Analog and Digital
• Voltage - Supply: 2.85 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Parameter
LOGIC OUTPUTS
POWER SUPPLIES
NOTES
1
2
3
4
Specifications subject to change without notice.
Operating temperature range is as follows: A Version: –40°C to +85°C.
Gain Error excludes reference error. The modulator gain is calibrated wrt the voltage on the REF2 pin.
Measurement Bandwidth = 0.5 × f
When a square wave clock is used, the dynamic specifications will degrade by 1 dB typically.
V
V
AVDD/DVDD
DVDD1
I
Active Mode
Standby Mode
DD
OH
OL
, Output Low Voltage
(Total for AVDD, DVDD)
, Output High Voltage
BIT STREAM
BANDWIDTH = 94.25kHz
TRANSITION = 304.687kHz
ATTENUATION = 120dB
COEFFICIENTS = 384
FILTER 1
MCLK
94.25kHz
; Input Level = –0.05 dB.
A Version
DVDD1 – 0.2
0.4
4.75/5.25
2.85/5.25
60
20
304.687kHz
120dB
DECIMATE
BY 32
Unit
V min
V max
V min/V max
V min/V max
mA max
µA max
BANDWIDTH = 94.25kHz
TRANSITION = 108.874kHz
ATTENUATION = 90dB
COEFFICIENTS = 151
FILTER 2
94.25kHz
Test Conditions/Comments
|I
|I
Digital Inputs Equal to 0 V or DVDD
OUT
OUT
| ≤ 200 µA
| ≤ 1.6 mA
108.874kHz
90dB
DECIMATE
BY 2
OUTPUT
16-BIT
AD7724