ADSST-SALEM-3T_15 Datasheet, PDF (13/24 Pages) Analog Devices – Powerful Energy Meter Chipset

ADSST-SALEM-3T
Parameter
FREQUENCY RESPONSE
(ADC)⁷ Typical Output Frequency
(Normalized to fS)
0
0.03125
0.0625
0.125
0.1875
0.25
0.3125
0.375
0.4375
> 0.5
LOGIC INPUTS
VINH, Input High Voltage
VINL, Input Low Voltage
IIH, Input Current
CIN, Input Capacitance
LOGIC OUTPUT
VOH, Output High Voltage
VOL, Output Low Voltage
Three-State Leakage Current
POWER SUPPLIES
AVDD1, AVDD2
DVDD
IDD⁸
Min
Typ
Max Unit
Test Conditions
0
–0.1
–0.25
–0.6
–1.4
–2.8
–4.5
–7.0
–9.5
< –12.5
VDD – 0.8
0
VDD – 0.4
0
–10
2.7
2.7
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
VDD
V
0.8 V
10 _µA
10 pF
VDD
V
0.4 V
+10 _µA
3.6 V
3.6 V
|IOUT| ≤ 100 µA
|IOUT| ≤ 100 µA
See Table 7
1_{Operating temperature range is as follows: –40°C to +85°C. Therefore, TMIN = –40°C and TMAX = +85°C.}
2_{Test conditions: Input PGA set for 0 dB gain (unless otherwise noted).}
3_{At input to sigma-delta modulator of ADC.}
4_{Guaranteed by design.}
5_{Overall group delay will be affected by the sample rate and the external digital filtering.}
6_{The ADC’s input impedance is inversely proportional to DMCLK and is approximated by: (4 × 10}11_)/DMCLK.
7_{Frequency response of the ADC measured with input at audio reference level (the input level that produces an output level of 0 dBm0), with 38 dB preamplifier}
bypassed and input gain of 0 dB.
8_{Test Conditions: no load on digital inputs, analog inputs ac-coupled to ground.}
Table 7. Current Summary (AVDD = DVDD = 3.3 V)
Conditions
Digital Current,
Max (mA)
ADCs Only On
25
REFCAP Only On
1.0
REFCAP and REFOUT Only On
3.5
All Sections On
26.5
All Sections Off
1.0
All Sections Off
0.05
SE MCLK ON
1 Yes
0 No
0 No
1 Yes
1 Yes
0 No
Comments
REFOUT Disabled
REFOUT Disabled
REFOUT Enabled
MCLK Active Levels Equal to 0 V and DVDD
Digital Inputs Static and Equal to 0 V or DVDD
The above values are in mA and are typical values, unless otherwise noted. MCLK = 16.384 MHz; SCLK = 16.384 MHz.
Rev. 0 | Page 13 of 24