Preliminary Technical Data
AD7658 SPECIFICATIONS
1
AD7658/AD7657/AD7656
Table 1. AV
CC
= 4.5 V to 5.5 V, V
DD
= 9.5 V to 16.5 V, V
SS
= -9.5 V to -16.5V, DV
CC
= 4.5 V to 5.5 V, V
DRIVE
= 2.7V to 5.25V, f
SAMPLE
=
250 kSPS, VREF = 2.5V Internal/External, unless otherwise noted; T
A
= T
MIN
to T
MAX
, unless otherwise noted
Parameter
DYNAMIC PERFORMANCE
Signal-to-Noise + Distortion (SINAD)
2
Total Harmonic Distortion (THD)
2
Peak Harmonic or Spurious Noise (SFDR)
2
Intermodulation Distortion (IMD)
2
Second-Order Terms
Third-Order Terms
Aperture Delay
Aperature Delay Matching
Aperture Jitter
Full Power Bandwidth
DC ACCURACY
No Missing Codes
Integral Nonlinearity
2
Positive Full Scale Error
2
Bipolar Zero Error
2
Negative Full Scale Error
2
ANALOG INPUT
Input Voltage Ranges
DC Leakage Current
Input Capacitance
REFERENCE INPUT/OUTPUT
Reference output voltage
Reference input Voltage range
DC Leakage current
Input capacitance
V
REF
Output Impedance
Reference temperature Coefficient
LOGIC INPUTS
Input High Voltage, V
INH
Input Low Voltage, V
INL
Input Current, I
IN
Input Capacitance, C
IN3
LOGIC OUTPUTS
Output High Voltage, V
OH
Output Low Voltage, V
OL
Floating-State Leakage Current
Floating-State Output Capacitance
3
Output Coding
CONVERSION RATE
Conversion Time
Track-and-Hold Acquisition Time
Throughput Rate
B Versions
1
70
71
−92
−-TBD
−94
−100
20
2
100
30
8
2.2
12
±1
±0.4
±2.1
±0.4
±4xVREF
±2xVREF
±0.3
30
2.49/2.51
2.5/3
±0.5
20
1
25
10
0.7 x V
DRIVE
03 x V
DRIVE
±0.3
10
V
DRIVE
– 0.2
0.4
±0.3
10
Two’s Complement
3
400
250
Unit
dB min
dB typ
dB typ
dB typ
dB typ
dB typ
ns max
ns max
ps typ
ps typ
MHz typ
MHz typ
Bits min
LSB typ
% FS max
mV max
% FS max
V
V
µA max
pF typ
V min/max
V min/max
µA max
pF typ
kOhms typ
ppm/°C max
ppm/°C typ
V min
V max
µA max
pF max
V min
V max
µA max
pF max
Test Conditions/Comments
f
IN
= 50 kHz sine wave
@ −3 dB
@ −0.1 dB
V
DD
= 5.5 V
RNG bit/RANGE pin = 0
RNG bit/RANGE pin = 1
V
REF
Pin
Typically 10 nA, V
IN
= 0 V or V
CC
I
SOURCE
= 200 µA;
I
SINK
= 200 µA
µs max
ns max
kSPS
POWER REQUIREMENTS
V
DD
Rev. PrI | Page 3 of 25
+9.5V/+16.5V
V min/max
AD [ ANALOG DEVICES ]
