AD7457 Analog Devices, AD7457 Datasheet - Page 9

• Manufacturer Part Number: AD7457
• Description: Pseudo Differential Input, 100 kSPS, 12-Bit ADC in 8-Lead SOT-23
• Manufacturer: Analog Devices

Specifications of AD7457

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 100kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (Vref) p-p
• Adc Architecture: SAR
• Pkg Type: SOT

– 0.5
– 1.0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
– 1
– 2
0
5
4
3
2
1
0
0
0
Figure 11. Changes in DNL vs. V
Figure 12. Change in INL vs. V
0.5
0.5
1.0
1.0
1.5
1.5
V
V
REF
REF
(V)
(V)
2.0
2.0
NEGATIVE INL
REF
POSITIVE INL
POSITIVE DNL
REF
NEGATIVE DNL
for V
for V
2.5
2.5
DD
DD
= 5 V
= 5 V
3.0
3.0
3.5
3.5
Rev. A | Page 9 of 20
12
11
10
9
8
7
6
0
Figure 13. ENOB vs. V
0.5
V
DD
= 3V
1.0
1.5
V
REF
REF
for V
V
(V)
DD
2.0
DD
= 5V
= 3 V and 5 V
2.5
3.0
AD7457
3.5