AD7945BRS Analog Devices Inc, AD7945BRS Datasheet - Page 2
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AD7945BRS
Manufacturer Part Number
AD7945BRS
Description
IC DAC 12BIT MULTIPLYING 20SSOP
Manufacturer
Analog Devices Inc
Datasheet
1.AD7943BNZ.pdf
(16 pages)
Specifications of AD7945BRS
Mounting Type
Surface Mount
Package / Case
20-SSOP
Rohs Status
RoHS non-compliant
Settling Time
600ns
Number Of Bits
12
Data Interface
Parallel
Number Of Converters
1
Voltage Supply Source
Single Supply
Power Dissipation (max)
25µW
Operating Temperature
-40°C ~ 85°C
No. Of Pins
20
Peak Reflow Compatible (260 C)
No
No. Of Bits
12 Bit
Leaded Process Compatible
No
Interface Type
Parallel
Number Of Channels
1
Resolution
12b
Single Supply Voltage (typ)
5V
Dual Supply Voltage (typ)
Not RequiredV
Architecture
R-2R
Power Supply Requirement
Single
Output Type
Current
Integral Nonlinearity Error
±0.5LSB
Single Supply Voltage (min)
4.5V
Single Supply Voltage (max)
5.5V
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
20
Package Type
SSOP
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD7945BRS
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
AD7945BRS-REEL
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
AD7945BRSZ
Manufacturer:
ADI
Quantity:
968
Company:
Part Number:
AD7945BRSZ
Manufacturer:
ADI
Quantity:
2 380
Part Number:
AD7945BRSZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
AD7945BRSZ-REEL
Manufacturer:
ADI/亚德诺
Quantity:
20 000
NORMAL MODE
AD7943/AD7945/AD7948–SPECIFICATIONS
AD7945, AD7948: V
Parameter
ACCURACY
REFERENCE INPUT
DIGITAL INPUTS
DIGITAL OUTPUT (AD7943 SRO)
POWER REQUIREMENTS
NOTES
1
2
3
4
Specifications subject to change without notice.
The AD7943, AD7945 and AD7948 are specified in the normal current mode configuration and in the biased current mode for single-supply applications.
Temperature ranges as follows: B Grades: –40 C to +85 C; T Grade: –55 C to +125 C.
The T Grade applies to the AD7945 only.
Guaranteed by design.
Figures 14 and 15 are examples of normal mode operation.
Resolution
Relative Accuracy
Differential Nonlinearity
Gain Error
Gain Temperature Coefficient
Output Leakage Current
Input Resistance
V
V
I
C
Output Low Voltage (V
Output High Voltage (V
V
Power Supply Sensitivity
I
I
INH
DD
DD
INH
INL
DD
IN
T
I
OUT1
, Input Capacitance
Gain/ V
(AD7943)
(AD7945, AD7948)
MIN
, Input Current
, Input Low Voltage
@ +25 C
T
, Input High Voltage
Range
MIN
to T
to T
DD
MAX
MAX
DD
= +4.5 V to +5.5 V; V
(AD7943: V
4
OL
OH
4
)
)
4
DD
= +4.5 V to +5.5 V; V
B Grades
12
2
5
10
100
6
12
2.4
0.8
10
0.2
V
4.5/5.5
–75
5
5
IOUT1
0.5
0.5
2
1
DD
– 0.2
= AGND = 0 V; V
2
T Grade
12
2
5
10
100
6
12
2.4
0.8
10
0.2
V
4.5/5.5
–75
5
5
0.5
0.5
2
1
DD
IOUT1
– 0.2
REF
= V
2, 3
= +10 V; T
IOUT2
–2–
Units
Bits
LSB max
LSB max
LSB max
ppm FSR/ C typ
ppm FSR/ C max
nA max
nA max
k min
k max
V min
V max
pF max
V max
V min
V min/V max
dB typ
A max
A max
A max
= AGND = 0 V; V
A
= T
MIN
to T
REF
MAX
1
, unless otherwise noted.)
= +10 V; T
Test Conditions/Comments
1 LSB = V
All Grades Guaranteed Monotonic over
Temperature
See Terminology Section
Typically 20 nA over Temperature
Typical Input Resistance = 9 k
For 1 CMOS Load
V
SRO Open Circuit. No STB Signal. Typically
1 A. Typically 100 A with a 1 MHz STB
Frequency. At Input Levels of 0.8 V and 2.4 V,
I
V
Typically 1 A. At Input Levels of 0.8 V and
2.4 V, I
DD
INH
INH
Is Typically 2.5 mA.
= V
= V
DD
DD
DD
A
REF
Is Typically 2.5 mA.
= T
– 0.1 V min, V
– 0.1 V min, V
/2
MIN
12
to T
= 2.44 mV when V
MAX
, unless otherwise noted.
INL
INL
= 0.1 V max.
= 0.1 V max.
REF
= 10 V
REV. B