BA-03X

Bridge Family

Description

  • True current clamp operation with direct measurement of membrane potential and complete cancellation of series resistance and stray capacitance
  • Can be used with sharp mircroelectrodes, or patch pipettes in whole-cell, cell-attached and perforated-patch configuration
  • Can be used for extracellular recordings of sub millivolt signals as well
  • POTENTIAL OUTPUT GAIN: 10, 20, 50, 100, 200, 500, 1k
  • POTENTIAL HIGHPASS filter: DC: 0.1, 0.3, 0.5, 1, 3, 10, 30, 50, 100, 200, 500, 600, 1k, 3k Hz
  • POTENTIAL LOWPASS filter: 20, 50, 100, 200, 300, 500, 700, 1k, 1.3k, 2k, 3k, 5k, 8k, 10k, 13k, 20k Hz
  • CURRENT OUTPUT SENSITIVITY: 0.1, 0.2, 0.5, 1, 2, 5, 10V / nA
  • Digital DISPLAYS for current, voltage and electrode resistance
  • BUZZ and ELECTRODE CLEAR facility, AUDIO monitor
  • OSCILLATION SHUT-OFF unit prevents cells from damage
  • TTL gates stimulus input with amplitude setting by 3-digit potentiometer and digital read-out of holding current
  • Enhanced (x10) current range for Juxtracellular recordings, electroporation or Iontophoresis

Ordering

Part No. Description
BA-03X BA-03X 19″ Bridge Mode Amplifier
BA-MODA Cell Model /w Active Membrane Resistance for BA System
BA-MOD Cell Model Circuit (passive) for BA System
BA-EH Standard Micro-/Patch Electrode Holder
BA-EH-SET Electrode Holder Set for BRAMP-System
BA-PRS Remote Control f. PENETRATION Unit
BA-PRS-F Remote Control f. PENETRATION Unit (foot)
BA-HS Headstage for BA System
BA-MINI-DIFF BA MiniHeadstage with differential input, with standard cable 2.5m, D=2.3mm, w/o housing
BA-MINI-DIFF-12 BA MiniHeadstage with differential input, 12 additional inputs, with standard cable 2.5m, D=2.3mm, w/o housing
BA-MINI-DIFF-2 BA MiniHeadstage with differential input, 2 additional inputs, with standard cable 2.5m, D=2.3mm, w/o housing
BA-MINI-DIFF-4 BA MiniHeadstage with differential input, 4 additional inputs, with standard cable 2.5m, D=2.3mm, w/o housing
BA-MINI-DIFF-6 BA MiniHeadstage with differential input, 6 additional inputs, with standard cable 2.5m, D=2.3mm, w/o housing
BA-MINI-DIFF-8 BA MiniHeadstage with differential input, 8 additional inputs, with standard cable 2.5m, D=2.3mm, w/o housing
BA-MINI-H Housing for MiniHeadstage 15x12x09 mm, weight: 3g
BA-MINI-C Standard Cable Extension (max. 6m)
BA-MINI-SC Special Cable for MINI-Headstage, high flexibility, 6-11 lines, 2.5m
BA-MINI-SCE Special Cable Extension for MINI-Headstage, high flexibility, 6-11 lines, max. 6m
BA-MINI-SE BA MiniHeadstage single-ended, standard cable 2.5m, D= 2.3mm, w/o housing
BA-MINI-SWI BA MiniHeadstage single-ended, switchable x1/x100, standard cable 2.5m, D= 2.3mm, w/o housing

Technical Data

HEADSTAGE:
Input voltage range: ±1000 mV
Operating voltage: ±15 V
Enclosure: Size: 23 x 70 x 26 mm, grounded
Holding bar: Size: length 150 mm, diameter 8 mm
Electrode connector: BNC connector with driven shield
Ground connector: 2.4 mm connector
Input resistance: >1013 Ω
Current range x1: ±12 nA into 100 MΩ
Current range x10: ±120 nA into 100 MΩ

ELECTRODE PARAMETER CONTROLS:
BIAS: range x1 ±400 pA, range x10 ±4 nA, leakage current adjustable with ten-turn control
OFFSET: ten-turn control, range ±200 mV
CAPACITY COMPENSATION: range 0-30 pF, ten-turn control.

CELL PENETRATION:
Overcompensation of capacity compensation (BUZZ), duration ~2 – ~50 ms (slightly dependent on the setting of capacitance compensation), timer controlled with linear control,
accessible with remote switch

ELECTRODE CLEAR CIRCUIT:
Application of max. DC currents (-Imax or +Imax),

OSCILLATION SHUT-OFF:
Turns off current injection and capacity compensation, function indicated by red / green LED,
disabled / off / reset switch, threshold set with linear control (0-1200 mV).

BRIDGE BALANCE:
adjustable with ten-turn control, 0-100 MΩ and 0-1000 MΩ with toggle switch.

ELECTRODE RESISTANCE test:
10 mV / MΩ obtained by application of square current pulses ±1 nA, display XXXX MΩ.

BANDWIDTH and SPEED of RESPONSE:
Full power bandwidth (Re = 0): >30 kHz, rise time (10 % – 90 %) <10 µs (Re = 100 MΩ),
<5 µs (Re = 5 MΩ).

OUTPUTS (BA-01X):
Impedance: 50 Ω;
Current x1: sensitivity 0.1 V / nA, display XX.XX nA, resolution 10 pA;
Current x10: sensitivity 0.1V / nA, display XXX.X nA, resolution 100 pA;
Potential: BNC connector, sensitivity x10 mV or x100 mV, selectable with toggle switch, display XXXX mV.

OUTPUTS (BA-03X):
Impedance: 50 Ω;
Current range x1: sensitivity 1 V / nA to 10 V / nA, selectable by rotary switch, (7 steps); display XX.XX nA, resolution 10 pA;
Current range x10: sensitivity 0.1V / nA to 10 V / nA, selectable by rotary switch, (7 steps); display XXX.X nA, resolution 100 pA;
Potential: BNC connector, sensitivity x10 mV to x1000 mV, selectable with rotary switch (7 steps), display XXXX mV.

CURRENT INPUTS RANGE x1:
0.1 nA / V, 1 nA / V, inputs equipped with on / off toggle switch, gating input with digital control of current step size and a resolution of 10 pA, polarity selectable with toggle switch,
holding current range ±10 nA with ten-turn control.

CURRENT INPUTS RANGE x10:
1 nA / V, 10 nA / V, inputs equipped with on / off toggle switch, gating input with digital control of current step size and a resolution of 100 pA, polarity selectable with toggle switch,
holding current range ±100 nA with ten-turn control.

POWER REQUIREMENTS:
115 / 230 V AC, 25 W

DIMENSIONS:
19″ rackmount cabinet, 19″ (483 mm) wide, 10″ (250 mm) deep, 3.5″ (88 mm) high

Downloads

Manuals:
BA-01X Manual
BA-03X Manual

BA Cell Model Manual

Brochures:
BA Brochure
Juxtacellular filling with BA-03X

Refererces:
BA Reference List