PGA204 Datasheet, PDF (1/14 Pages) Burr-Brown (TI) – Programmable Gain INSTRUMENTATION AMPLIFIER

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PGA204
PGA205
Programmable Gain
INSTRUMENTATION AMPLIFIER
FEATURES
q DIGITALLY PROGRAMMABLE GAIN:
PGA204: G=1, 10, 100, 1000V/V
PGA205: G=1, 2, 4, 8V/V
q LOW OFFSET VOLTAGE: 50µV max
q LOW OFFSET VOLTAGE DRIFT: 0.25µV/°C
q LOW INPUT BIAS CURRENT: 2nA max
q LOW QUIESCENT CURRENT: 5.2mA typ
q NO LOGIC SUPPLY REQUIRED
q 16-PIN PLASTIC DIP, SOL-16 PACKAGES
APPLICATIONS
q DATA ACQUISITION SYSTEM
q GENERAL PURPOSE ANALOG BOARDS
q MEDICAL INSTRUMENTATION
DESCRIPTION
The PGA204 and PGA205 are low cost, general pur-
pose programmable-gain instrumentation amplifiers
offering excellent accuracy. Gains are digitally se-
lected: PGA204—1, 10, 100, 1000, and PGA205—1,
2, 4, 8V/V. The precision and versatility, and low cost
of the PGA204 and PGA205 make them ideal for a
wide range of applications.
Gain is selected by two TTL or CMOS-compatible
address lines, A₀ and A₁. Internal input protection can
withstand up to ±40V on the analog inputs without
damage.
The PGA204 and PGA205 are laser trimmed for very
low offset voltage (50µV), drift (0.25µV/°C) and high
common-mode rejection (115dB at G=1000). They op-
erate with power supplies as low as ±4.5V, allowing use
in battery operated systems. Quiescent current is 5mA.
The PGA204 and PGA205 are available in 16-pin
plastic DIP, and SOL-16 surface-mount packages, speci-
fied for the –40°C to +85°C temperature range.
–
4 Over-Voltage
V_IN
Protection
A₁
V_O1 V+
1
13
25kΩ
16
A₁
A₀
15
14
Digital
Ground
Digitally Selected
Feedback Network
+
5 Over-Voltage
A₂
V_IN
Protection
25kΩ
6
7
9
8
V_OS Adj V_O2
V–
PGA204
PGA205 _Feedback
25kΩ
12
A₃
11
V_O
25kΩ
Ref
10
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Tel: [phone] • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
©_{1991 Burr-Brown Corporation}
PDS1-1176A
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PGAP2rin0te4d i/n2U0.S5.A. October, 1993