adl5304 Analog Devices, Inc., adl5304 Datasheet - Page 3

• Manufacturer Part Number: adl5304
• Description: High Speed, 200 Db Range, Logarithmic Converter
• Manufacturer: Analog Devices, Inc.

Data Sheet
SPECIFICATIONS
V
SCL3 = open; scale = 200 mV/dec; VLOG output load R
VLOG) and subscripted indicates signal name (for example, V
Table 1.
Parameter
INPUT INTERFACES
LOGARITHMIC OUTPUT
VLOG OUTPUT
REFERENCE OUTPUTS
PHOTODIODE BIAS
POS
Specified Current Range
Temperature Drift (INUM and IDEN)
Input Guard Offset Voltage
Logarithmic Slope, V
Logarithmic Intercept, I
Logarithmic Offset
Logarithmic Law Conformance Error
Output Buffer Offset Voltage
Output Buffer Bias Current
Incremental Input Resistance
Output Range
Output Noise Spectral Density
Small Signal Bandwidth
Falling Edge Settling Times
Nominal Voltage Swing
Output Impedance
1P5V (Referenced to ACOM)
2VLT (Referenced to ACOM)
IREF
Midrange Value
Maximum Value
IMON Compliance
Output Current
Output Current
= 5 V, V
5
NEG
= 0 V, T
Y
A
Z
= 25°C; IDEN = IREF; VSM1 to VSM4, 1P5V, DCBI, and INPS tied together; SCL1 = VLOG; SCL2 = INMS;
2
4
3
Test Conditions/Comments
INUM, IDEN, VSMx pins
Flows toward each input pin (INUM and IDEN),
−5 V ≤ V
V
−40°C < T
V
VLOG pin, referenced to ACOM; input applied to
INUM
25°C
−40°C < T
Extrapolated input current at VLOG = 0 V
Difference between V
−40°C < T
Maximum deviation from best fit over
1 nA to 100 μA range
INPS, INMS, VLOG, SCL1, SCL2, SCL3 pins
Flowing out of the INPS pin
Pin INPS
R
I
I
I
I
I
I
I
I
I
For input current range of 1 pA to 10 mA
Frequency < 1 MHz
1P5V, 2VLT, IREF pins
25°C
−40°C < T
25°C
−40°C < T
Sourcing only
25°C
−40°C < T
IMON pin; I
At a photodiode current = I
At I
(R
NUM
NUM
NUM
NUM
NUM
NUM
NUM
NUM
NUM
NEG
INUM
L
S
open
= photodiode series resistance)
NUM
> 1 nA
= 1 nA
= 10 nA
= 100 nA
> 1 μA
= 100 nA to 10 nA
= 1 μA to 100 nA
= 10 μA to 1 μA
> 10 μA
= 0 V
− V
1
= 1 mA (R
NEG
VSUM
A
A
A
A
A
A
< +85°C
< +85°C
< +85°C
< +85°C
< +85°C
< +85°C
MON
≤ −2 V
= 1.1 × I
L
S
> 2 kΩ, unless otherwise noted. Upper case indicates a pin name (for example,
≤ 100 Ω), R
Rev. 0 | Page 3 of 32
LOG
LOG
NUM
and V
).
NUM
MNTR
SUM
= 100 nA
= 10 × R
with I
NUM
S
= I
DEN
Min
1
1
−2
195
−2
−8
−0.7
−3
VNEG + 0.2
0.5
1.495
−10
1.995
0
10.5
0
−12
−12
Typ
0.01
±0.6
200
3.162
25
±0.2
+0.1
−1.3
12
<6
25
350
1.2
4
10
2.2
0.5
<0.5
<2
1.500
30
2.000
31
100
−70
110
11
3.0
Max
10
3
+2
205
+3
+5
+0.7
+3
VPOS − 0.2
2.5
1.505
+5
2.005
20
11.5
−3
−3
ADL5304
Unit
A
A
mV/°C
mV
mV/dec
mV/dec
fA
mV
μV/°C
dB
mV
μA
MΩ
V
μV/√Hz
kHz
kHz
MHz
MHz
μs
μs
μs
μs
V
Ω
V
μV/°C
mA
V
μV/°C
mA
nA
pA/°C
nA
mA
V