AD7656-1 Analog Devices, AD7656-1 Datasheet - Page 4

• Manufacturer Part Number: AD7656-1
• Description: 250 kSPS, 6-Channel, Simultaneous Sampling, Bipolar 16-Bit ADC
• Manufacturer: Analog Devices

Specifications of AD7656-1

• Resolution (bits): 16bit
• # Chan: 6
• Sample Rate: 250kSPS
• Interface: Par,Ser,SPI
• Analog Input Type: SE-Bip
• Ain Range: 10V p-p,20 V p-p,Bip 10V,Bip 5.0V
• Adc Architecture: SAR
• Pkg Type: QFP

AD7656-1/AD7657-1/AD7658-1
Parameter
LOGIC INPUTS
LOGIC OUTPUTS
CONVERSION RATE
POWER REQUIREMENTS
1
2
3
See the Terminology section.
Sample tested during initial release to ensure compliance.
Includes I
Input High Voltage (V
Input Low Voltage (V
Input Current (I
Input Capacitance (C
Output High Voltage (V
Output Low Voltage (V
Floating-State Leakage Current
Floating-State Output Capacitance
Output Coding
Conversion Time
Track-and-Hold Acquisition Time
Throughput Rate
V
V
AV
DV
V
I
I
I
Partial Power-Down Mode
Full Power-Down Mode (STBY Pin)
Power Dissipation
TOTAL
SS
DD
DD
SS
DRIVE
Normal Mode—Static
Normal Mode—Operational
(Operational)
Normal Mode—Static
Normal Mode—Operational
Partial Power-Down Mode
Full Power-Down Mode (STBY Pin)
CC
(Operational)
CC
3
AVCC
, I
VDD
, I
VSS
IN
, I
)
VDRIVE
IN
INL
, and I
INH
)
OL
2
)
OH
)
)
)
DVCC
.
1, 2
2
Min
0.7 × V
V
−5
−5
4.75
4.75
2.7
DRIVE
complement
− 0.2
DRIVE
Twos
Typ
Rev. C | Page 4 of 32
Max
0.3 × V
±10
10
0.2
±10
10
3.1
550
250
+16.5
−16.5
5.25
5.25
5.25
18
26
0.25
0.25
7
60
94
140
40
315
DRIVE
Unit
V
V
μA
pF
V
V
μA
pF
μs
ns
kSPS
V
V
V
V
V
mA
mA
mA
mA
mA
μA
mW
mW
mW
μW
Test Conditions/Comments
Typically 10 nA, V
I
I
Parallel interface mode only
For the 4 × V
For the 4 × V
Digital inputs = 0 V or V
AV
V
f
V
V
V
AV
V
SCLK on or off, AV
V
AV
V
f
SOURCE
SINK
SAMPLE
SAMPLE
SS
DD
SS
DD
SS
DD
SS
CC
CC
CC
= −16.5 V
= −16.5 V, f
= −16.5 V
= −16.5 V
= +16.5 V, V
= +16.5 V, f
= +16.5 V, V
= 200 μA
= DV
= DV
= DV
= 250 kSPS, AV
= 200 μA
= 250 kSPS
CC
CC
CC
= V
= V
= V
REF
REF
SAMPLE
SAMPLE
DRIVE
range, V
range, V
DRIVE
SS
DRIVE
SS
IN
= −16.5 V
= −16.5 V
CC
= +5.25 V, V
= 0 V or V
= +5.25 V, V
= +5.25 V, V
CC
= 250 kSPS
= DV
= 250 kSPS
= DV
DD
SS
DRIVE
= −10 V to −16.5 V
CC
= 10 V to 16.5 V
CC
= V
DRIVE
= V
DRIVE
DD
DD
DD
DRIVE
= +16.5 V,
= +16.5 V,
= +16.5 V,
= +5.25 V,
= +5.25 V,