Datasheet

AD7466/AD7467/AD7468
Rev. C | Page 3 of 28
SPECIFICATIONS
AD7466
V
DD
= 1.6 V to 3.6 V, f
SCLK
= 3.4 MHz, f
SAMPLE
= 100 kSPS, unless otherwise noted. T
A
= T
MIN
to T
MAX
, unless otherwise noted.
The temperature range for the B version is −40°C to +85°C.
Table 1.
Parameter B Version Unit Test Conditions/Comments
DYNAMIC PERFORMANCE f
IN
= 30 kHz sine wave
Signal-to-Noise and Distortion (SINAD) 69 dB min 1.8 V ≤ V
DD
≤ 2 V; see the Terminology section
70 dB min 2.5 V ≤ V
DD
≤ 3.6 V
70 dB typ V
DD
= 1.6 V
Signal-to-Noise Ratio (SNR) 70 dB min 1.8 V ≤ V
DD
≤ 2 V; see the Terminology section
71 dB typ 1.8 V ≤ V
DD
≤ 2 V
71 dB min 2.5 V ≤ V
DD
≤ 3.6 V
70.5 dB typ V
DD
= 1.6 V
Total Harmonic Distortion (THD) −83 dB typ See the Terminology section
Peak Harmonic or Spurious Noise (SFDR) −85 dB typ See the Terminology section
Intermodulation Distortion (IMD)
fa = 29.1 kHz, fb = 29.9 kHz; see the
Terminology
section
Second-Order Terms −84 dB typ
Third-Order Terms −86 dB typ
Aperture Delay 10 ns typ
Aperture Jitter 40 ps typ
Full Power Bandwidth 3.2 MHz typ @ 3 dB, 2.5 V ≤ V
DD
≤ 3.6 V
1.9 MHz typ @ 3 dB, 1.6 V ≤ V
DD
≤ 2.2 V
750 kHz typ @ 0.1 dB, 2.5 V ≤ V
DD
≤ 3.6 V
450 kHz typ @ 0.1 dB, 1.6 V ≤ V
DD
≤ 2.2 V
DC ACCURACY
Maximum specifications apply as typical figures when
V
DD
= 1.6 V
Resolution 12 Bits
Integral Nonlinearity ±1.5 LSB max See the Terminology section
Differential Nonlinearity −0.9/+1.5 LSB max
Guaranteed no missed codes to 12 bits; see the
Terminology section
Offset Error ±1 LSB max See the Terminology section
Gain Error ±1 LSB max See the Terminology section
Total Unadjusted Error (TUE) ±2 LSB max See the Terminology section
ANALOG INPUT
Input Voltage Ranges 0 to V
DD
V
DC Leakage Current ±1 μA max
Input Capacitance 20 pF typ
LOGIC INPUTS
Input High Voltage, V
INH
0.7 × V
DD
V min 1.6 V ≤ V
DD
< 2.7 V
2 V min 2.7 V ≤ V
DD
≤ 3.6 V
Input Low Voltage, V
INL
0.2 × V
DD
V max 1.6 V ≤ V
DD
< 1.8 V
0.3 × V
DD
V max 1.8 V ≤ V
DD
< 2.7 V
0.8 V max 2.7 V ≤ V
DD
≤ 3.6 V
Input Current, I
IN
, SCLK Pin ±1 μA max Typically 20 nA, V
IN
= 0 V or V
DD
Input Current, I
IN
, CS Pin
±1 μA typ
Input Capacitance, C
IN
10 pF max Sample tested at 25°C to ensure compliance