參數(shù)資料
型號(hào): AD744AH
廠商: ANALOG DEVICES INC
元件分類: 運(yùn)動(dòng)控制電子
英文描述: Precision, 500 ns Settling BiFET Op Amp
中文描述: OP-AMP, 2000 uV OFFSET-MAX, 13 MHz BAND WIDTH, MBCY8
封裝: HERMETIC SEALED, METAL CAN, TO-99, 8 PIN
文件頁(yè)數(shù): 3/24頁(yè)
文件大小: 914K
代理商: AD744AH
REV. PrF
PRELIMINARY TECHNICAL DATA
AD7450A - SPECIFICATIONS
–3–
AD7450A/AD7440
Parameter
Test Conditions/Comments
A Version
1
B Version
1
Units
CONVERSION RATE
Conversion Time
888ns with an 18MHz SCLK
16
16
SCLK cycles
Track/Hold Acquisition Time
2
Sine Wave Input
Step Input
200
TBD
1
200
TBD
1
ns max
ns max
MSPS max
Throughput Rate
8
POWER REQUIREMENTS
V
DD
Range: 3 V+20%/-10%;
5 V ± 5% 2.7V/5.25V 2.7V/5.25V
Vmin/max
I
DD9,10
Normal Mode(Static)
Normal Mode (Operational)
SCLK On or Off
V
DD
= 4.75V to 5.25V,
1.38mW typ for 100ksps
9
V
DD
= 2.7V to 3.6V,
0.53mW typ for 100ksps
9
SCLK On or Off
0.5
0.5
mA typ
1.8
1.8
mA max
1.25
1
1.25
1
mA max
μA max
Full Power-Down Mode
Power Dissipation
Normal Mode (Operational)
V
DD
=5 V.
V
DD
=3 V.
V
DD
=5 V. SCLK On or Off
V
DD
=3 V. SCLK On or Off
9
3.75
5
3
9
3.75
5
3
mW max
mW max
μW max
μW max
Full Power-Down
NOTES
1
Temperature ranges as follows: A and B Versions: –40°C to +85°C.
2
See ‘Terminology’ section.
3
Because the input spans of V
and V
are both V
, and they are 180° out of phase, the differential voltage is 2 x V
.
4
Common Mode Voltage. The input signal can be centered on any choice of dc Common Mode Voltage as long as this value is in the range
specified in Figures 9 and 10.
5
The AD7450A is functional with a reference input from100mV and for V
DD
= 5V, the reference can range up to 3.5V.
6
The AD7450A is functional with a reference input from100mV and for V
DD
= 3V, the reference range up to 2.2V.
7
Sample tested @ +25°C to ensure compliance.
8
See ‘Serial Interface Section’.
9
See POWER VERSUS THROUGHPUT RATE section.
10
Measured with a midscale DC input.
Specifications subject to change without notice.
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