Analog Devices AD8260 Evaluation Board AD8260-EVALZ AD8260-EVALZ Data Sheet
Product codes
AD8260-EVALZ
AD8260
Rev. A | Page 3 of 32
SPECIFICATIONS
V
S
(supply voltage) = 3.3 V, T
A
= 25°C, preamplifier gain = 2× (R
FB1
= R
FB2
= 100 Ω), V
VMDO
= V
S
/2, f = 10 MHz, C
L
= 5 pF, R
LOAD
= 500 Ω,
DGA differential output. All dBm values are referenced to 50 Ω, gain code 1011, unless otherwise specified.
Table 1.
Parameter
Conditions
Min
Typ
Max
Unit
DRIVER AMPLIFIER—GENERAL PARAMETERS
–3 dB Small Signal Bandwidth
V
OUT
= 10 mV p-p, R
LOAD
= 500 Ω
195
MHz
V
OUT
= 10 mV p-p, R
LOAD
= 50 Ω
120
MHz
V
OUT
= 10 mV p-p, R
LOAD
= 10 Ω
85
MHz
–3 dB Large Signal Bandwidth
V
OUT
= 1 V p-p
195
MHz
V
OUT
= 2 V p-p
190
MHz
V
OUT
= 2 V p-p, R
LOAD
= 50 Ω
180
MHz
Slew Rate
V
OUT
= 1 V p-p
730
V/µs
V
OUT
= 2 V p-p
725
V/µs
V
OUT
= 2 V p-p, R
LOAD
= 50 Ω
620
V/µs
Gain
Nominal gain with internal gain setting resistors
3.0
3.52
dB
Input Voltage Noise
f = 10 MHz
9.5
nV/√Hz
Noise Figure
R
S
= 100 Ω (differential, 2 × 50 Ω that convert
differential DAC output currents to differential voltage)
17.6
dB
Output-Referred Noise
Gain = 3.52 dB (1.5×), includes internal gain setting
resistors
resistors
14.3
nV/√Hz
Output Impedance
DC to 10 MHz, V
S
= ±3.3 V
≤1.7
Ω
Output Current
R
LOAD
= 1 Ω, V
IN
= ±0.5 V
±310
mA
Output Signal Range
R
LOAD
≥ 500 Ω
V
MDO
± 1.5
V
V
S
= +5 V
V
MDO
± 2.3
V
V
S
=
±
5 V
±4.7
V
Input Signal Range
Differential input signal
2
V p-p
Output Offset Voltage
Gain = 3.52 dB (1.5×), max and min limits are 3σ
−20
±5
+20
mV
DRIVER AMPLIFIER—DYNAMIC PERFORMANCE
Harmonic Distortion
V
OUT
= 1 V p-p
HD2
f = 1 MHz
−84
dBc
HD3
−85
dBc
HD2
f = 10 MHz
−83
dBc
HD3
−70
dBc
Harmonic Distortion
V
OUT
= 2 V p-p
HD2
f = 1 MHz
−78
dBc
HD3
−76
dBc
HD2
f = 10 MHz
−70
dBc
HD3
−58
dBc
Input 1 dB Compression Point
13
dBm
Multitone Power Ratio (MTPR, In-Band)
R
LOAD
= 50 Ω, V
OUT
= 1.4 V p-p max, 10 tones, 2 MHz to
22 MHz with missing tone at 12 MHz (spacing 2 MHz)
−49
dBc
R
LOAD
= 50 Ω, V
OUT
= 1.4 V p-p max, 16 tones, 2 MHz to
38 MHz with missing tones at 10 MHz, 20 MHz, 30 MHz,
and 40 MHz (spacing 2 MHz)
and 40 MHz (spacing 2 MHz)
−43
dBc
Two-Tone Intermodulation Distortion (IMD3)
V
OUT
= 1 V p-p, f
1
= 10 MHz, f
2
= 11 MHz
−90
dBc
V
OUT
= 2 V p-p, f
1
= 10 MHz, f
2
= 11 MHz
−71
dBc
V
OUT
= 1 V p-p, f
1
= 45 MHz, f
2
= 46 MHz
−60
dBc
V
OUT
= 2 V p-p, f
1
= 45 MHz, f
2
= 46 MHz
−48
dBc
Output Third-Order Intercept
V
OUT
= 1 V p-p, f = 10 MHz
43
dBm
V
OUT
= 2 V p-p, f = 10 MHz
40
dBm
V
OUT
= 1 V p-p, f = 45 MHz
28
dBm
V
OUT
= 2 V p-p, f = 45 MHz
28
dBm
Two-Tone Intermodulation Distortion (IMD3),
R
LOAD
= 50 Ω
V
OUT
= 1 V p-p, f
1
= 10 MHz, f
2
= 11 MHz
−69
dBc
V
OUT
= 2 V p-p, f
1
= 10 MHz, f
2
= 11 MHz
−72
dBc
V
OUT
= 1 V p-p, f
1
= 45 MHz, f
2
= 46 MHz
−51
dBc
V
OUT
= 2 V p-p, f
1
= 45 MHz, f
2
= 46 MHz
−48
dBc