AD7991 Analog Devices, AD7991 Datasheet - Page 15
AD7991
Manufacturer Part Number
AD7991
Description
4-Channel, 12-Bit ADC with I2C Compatible Interface in 8-Lead SOT-23
Manufacturer
Analog Devices
Datasheet
1.AD7991.pdf
(28 pages)
Specifications of AD7991
Resolution (bits)
12bit
# Chan
4
Sample Rate
140kSPS
Interface
I²C/Ser 2-Wire
Analog Input Type
SE-Uni
Ain Range
Uni (Vref),Uni Vdd
Adc Architecture
SAR
Pkg Type
SOT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD7991YRJZ-0500RL7
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
AD7991YRJZ-0RL
Manufacturer:
ADI/亚德诺
Quantity:
20 000
–100
–120
–20
–40
–60
–80
0
0
Without Clock Stretching, V
Figure 16. Dynamic Performance, f
5
Seven-Term Blackman-Harris Window
10
15
FREQUENCY (kHz)
20
DD
25
= 5 V, Full-Scale Input,
30
SCL
= 1.71 MHz
16384 POINT FFT
f
f
f
SNR = 71.77dB
SINAD = 71.45dB
THD = –82.43dB
SFDR = –95.02dB
S
SCL
IN
35
= 95kSPS
= 10.13kHz
= 1.71MHz
40
45
Rev. B | Page 15 of 28
3
2
1
0
0
Figure 17. Power vs. SCL Frequency, V
500
AD7991/AD7995/AD7999
SCL FREQUENCY (kHz)
V
V
DD
DD
1000
= 5V
= 3V
REF
= 2.5 V
1500