AD8436BRQZ-R7

IC RMS TO DC CONVERTER 20QSOP

The AD8436BRQZ-R7 is a high-precision, low-power true RMS-to-DC converter in a 20-lead QSOP package, operating from -40°C to +125°C with dual supplies of ±2.4 V to ±18 V or single supplies of 4.8 V to 36 V, featuring ESD protection.Checked against the datasheet

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Technical parameters

Datasheet-verified parameters

17 items

Parameter	Value and test conditions	Source
Package	20-Lead QSOP (RQ-20)
Operating Temperature Range	-40°C to +125°C
Grade	B
Supply Voltage Range	Dual: ±2.4 V to ±18 V; Single: 4.8 V to 36 V
Absolute Maximum Supply Voltage	±18 V
Input Voltage Range	100 μV rms to 3 V rms (8.5 V p-p) full-scale input range
Absolute Maximum Input Voltage	VEE – 0.3 V to VCC + 0.3 V
Accuracy	±10 μV ± 0.25% of reading (B grade)
Bandwidth (-3 dB)	1 MHz for −3 dB (300 mV)
Bandwidth (1% Error)	65 kHz for additional 1% error
Typical Power Consumption	300 µA typical at ±2.4 V
Input Impedance	RIN ≥ 10^12 Ω, CIN ≤ 2 pF
Crest Factor Error	<0.5% for CF values between 1 and 10
ESD Rating	2 kV
Storage Temperature Range	-65°C to +125°C
Thermal Resistance (Junction to Ambient)	95°C/W (RQ-20 Package)
Power Dissipation	1.1 W (RQ Package)

All parameters (10)ExpandCollapse

Power
Current - Supply	325 µA
Voltage - Supply	±2.4V ~ 18V, 4.8V ~ 36V
Environment and package
Mounting Type	Surface Mount
Package	Tape & Reel (TR)
Package / Case	20-SSOP (0.154", 3.90mm Width)
Supplier Device Package	20-QSOP
Other
Base Product Number	AD8436
Mfr	Analog Devices Inc.
Product Status	Active
Series	-

Pinout and package

Figure 4. Pin Configuration, R… — Package: **20-Lead QSOP (RQ-20)**

Pin	Name	Function	Source
1		SUM: Summing Amplifier Input Pin
2		DNC: Do Not Connect. Used for factory test.
3		RMS: AC Input to the RMS Core.
4		IBUFOUT: FET Input Buffer Output Pin.
5		IBUFIN-: FET Input Buffer Inverting Input Pin.
6		IBUFIN+: FET Input Buffer Noninverting Input Pin.
7		IBUFGN: Optional 10 kΩ Precision Gain Resistor.
8		DNC: Do Not Connect. Used for factory test.
9		OGND: Internal 16 kΩ I-to-V Resistor.
10		OUT: RMS Core Voltage or Current Output.
11		VEE: Negative Supply Rail.
12		IGND: Half Supply Node.
13		OBUFIN+: Output Buffer Noninverting Input Pin.
14		OBUFIN-: Output Buffer Inverting Input Pin.
15		OBUFOUT: Output Buffer Output Pin.
16		OBUFV+: Power Pin for the Output Buffer.
17		IBUFV+: Power Pin for the Input Buffer.
18		VCC: Positive Supply Rail for the RMS Core.
19		CCF: Connection for Crest Factor Capacitor.
20		CAVG: Connection for Averaging Capacitor.

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